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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-115696
PROSPECTUS SUPPLEMENT
(To Prospectus Dated June 9, 2004)

3,500,000 Shares

UNITED DOMINION LOGO

Common Stock

$20.50 per share


        United Dominion Realty Trust, Inc. is offering 3,500,000 shares of its common stock.

      We have granted the underwriter an option to purchase up to 525,000 additional shares of common stock to cover over-allotments. The underwriter can exercise this right at any time within thirty days after the date of this prospectus supplement.

      Our common stock is listed on the New York Stock Exchange under the symbol “UDR.” The last reported sale price of our common stock on the New York Stock Exchange on October 27, 2004 was $20.85 per share.


       Investing in our common stock involves risks. See “Risk Factors” on page S-3 of this prospectus supplement and on page 3 of the accompanying prospectus.

       Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.


                 
Per Share Total


Public offering price
  $ 20.50     $ 71,750,000  
Underwriting discounts and commissions
  $ 0.15     $ 525,000  
Proceeds to us (before expenses)
  $ 20.35     $ 71,225,000  

      In addition to the underwriting discount, the underwriter will receive a commission equivalent from investors in the amount of $0.05 for each share of common stock sold to those investors in the offering.

      The underwriter expects to deliver the shares of common stock on or about November 2, 2004.


Citigroup


October 28, 2004


      You should rely only on the information contained in or incorporated by reference into this prospectus supplement and the accompanying prospectus. We have not authorized anyone to provide you with different information. If anyone provides you with different or additional information, you should not rely on it. We are not making an offer of these securities in any jurisdiction where an offer or sale of these securities is not permitted. You should not assume that the information in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein, is accurate as of any date other than their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.


TABLE OF CONTENTS

         
Page

Prospectus Supplement
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Prospectus
About This Prospectus
    1  
Where You Can Find More Information
    1  
Incorporation of Information Filed with the SEC
    1  
Forward-Looking Statements
    2  
United Dominion Realty Trust, Inc. 
    2  
Recent Developments
    3  
Risk Factors
    3  
Use of Proceeds
    3  
Ratios of Earnings to Fixed Charges and Earnings to Combined Fixed Charges and Preferred Stock Dividends
    3  
Description of Debt Securities
    4  
Description of Preferred Stock
    18  
Description of Common Stock
    20  
U.S. Federal Income Tax Considerations
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Plan of Distribution
    32  
Legal Matters
    34  
Experts
    34  

      Unless we have indicated otherwise, or the context otherwise requires, references in this prospectus supplement to “United Dominion,” “we,” “us,” and “our,” or similar terms, are to United Dominion Realty Trust, Inc. and its subsidiaries.

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FORWARD-LOOKING STATEMENTS

      This document, including the documents incorporated by reference in this document, contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and the Private Securities Litigation Reform Act of 1995. Forward-looking statements, by their nature, involve estimates, projections, goals, forecasts, assumptions, risks and uncertainties that could cause actual results or outcomes to differ materially from those expressed in a forward-looking statement. Such forward-looking statements include, without limitation, statements concerning property acquisitions and dispositions, development activity and capital expenditures, capital raising activities, rent growth, occupancy and rental expense growth. Words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates” and variations of such words and similar expressions are intended to identify such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made. Except to fulfill our obligations under the federal securities laws, we undertake no obligation to update any such statement to reflect events or circumstances after the date on which it is made.

      Examples of factors that can affect our expectations, beliefs, plans, goals, objectives and future financial or other performance include, but are not limited to, the following:

  •  unanticipated adverse business developments affecting us or our properties,
 
  •  adverse changes in the real estate markets,
 
  •  our declaration or payment of distributions,
 
  •  our potential developments or acquisitions or dispositions of properties, assets or other public or private companies,
 
  •  our policies regarding investments, indebtedness, acquisitions, dispositions, financings, conflicts of interest and other matters,
 
  •  our qualification as a REIT under the Internal Revenue Code of 1986, as amended,
 
  •  the real estate markets in which we operate and in general,
 
  •  the availability of debt and equity financing,
 
  •  interest rates,
 
  •  general and local economic business conditions, and
 
  •  trends affecting our financial condition or results of operations.

      All of the above factors are difficult to predict, contain uncertainties that may materially affect actual results, and may be beyond our control. New factors emerge from time to time, and it is not possible for our management to predict all of such factors or to assess the effect of each such factor on our business.

      Although we believe that the assumptions underlying the forward-looking statements contained herein are reasonable, any of the assumptions could be inaccurate, and therefore any of these statements included in this document or in the documents incorporated by reference may prove to be inaccurate. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that the results or conditions described in such statements or our objectives and plans will be achieved.

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RISK FACTORS

      Investing in our common stock involves risks. Before purchasing shares of our common stock, you should carefully consider the risk factors under the heading “Factors Affecting Our Business and Prospects” in the “Business” section of our most recent Annual Report on Form 10-K, which is incorporated by reference into this prospectus supplement and the accompanying prospectus, as the same may be updated from time to time by our filings under the Exchange Act, as well as other information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus.

USE OF PROCEEDS

      We estimate that the net proceeds from the offering of the shares of common stock will be approximately $71,125,000 (or approximately $81,808,750 if the underwriter exercises its over-allotment option in full), after deducting the underwriting discounts and commissions and estimated offering expenses. We expect to use the net proceeds of this offering to reduce outstanding balances under our $500 million unsecured revolving credit facility maturing in March 2006, which amounts were borrowed to fund recent portfolio acquisitions. As of October 27, 2004, the weighted average annual interest rate on this facility was 2.46%. An affiliate of the underwriter is a lender under our revolving credit facility. This affiliate will receive its proportionate share of the amount of the credit facility to be repaid with the proceeds of this offering. See the “Underwriting” section of this prospectus supplement.

DESCRIPTION OF COMMON STOCK

      A summary of some of the important terms of our common stock is set forth in the accompanying prospectus under the heading “Description of Common Stock.” You should review the applicable Maryland law as well as our amended and restated articles of incorporation, bylaws and stockholder rights plans for a more complete description of our common stock. As of October 27, 2004, there were 128,174,628 shares of our common stock issued and outstanding. Our common stock is traded on the New York Stock Exchange under the symbol “UDR.”

U.S. FEDERAL INCOME TAX CONSIDERATIONS

      This section supplements the discussion under the caption “U.S. Federal Income Tax Considerations” in the accompanying prospectus. The following discussion describes the material U.S. federal income tax considerations relating to the ownership and disposition of our common stock. Because this is a summary that is intended to address only U.S. federal income tax consequences generally relevant to all stockholders relating to the ownership and disposition of our common stock, it may not contain all the information that may be important to you. Except as discussed under the captions “— General” and “— Other Tax Considerations” below, this discussion does not address any aspects of U.S. federal income taxation relating to our election to be taxed as a real estate investment trust, or REIT. A summary of certain U.S. federal income tax considerations relating to our election to be taxed as REIT is provided in the accompanying prospectus. The discussion under the caption “— General” below supersedes the corresponding discussion under the caption “U.S. Federal Income Tax Considerations — General” in the accompanying prospectus.

      We urge you to consult your own tax advisor regarding the specific tax consequences to you of the acquisition, ownership, and disposition of our common stock and of our election to be taxed as a REIT. Specifically, you should consult your own tax advisor regarding the U.S. federal, state, local, foreign, and other tax consequences of such acquisition, ownership, disposition, and election, and regarding potential changes in applicable tax laws.

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General

      We elected to be taxed as a REIT under the U.S. federal income tax laws commencing with our taxable year ended December 31, 1972. We believe that we have operated in a manner that permits us to satisfy the requirements for taxation as a REIT under the applicable provisions of the Internal Revenue Code. Qualification and taxation as a REIT depends upon our ability to meet, through actual annual operating results, distribution levels and diversity of stock ownership, the various qualification tests imposed under the Internal Revenue Code. Although we intend to continue to operate to satisfy such requirements, we cannot assure you that the actual results of our operations for any particular taxable year will satisfy such requirements.

      The provisions of the Internal Revenue Code, Treasury Regulations promulgated thereunder and other U.S. federal income tax laws relating to qualification and operation as a REIT are highly technical and complex. This summary is qualified in its entirety by the applicable Internal Revenue Code provisions, rules and Treasury Regulations thereunder, and administrative and judicial interpretations thereof. Further, the anticipated income tax treatment described in this prospectus supplement may be changed, perhaps retroactively, by legislative, administrative or judicial action at any time.

      In brief, if certain detailed conditions imposed by the REIT provisions of the Internal Revenue Code are satisfied, entities, such as us, that invest primarily in real estate and that otherwise would be treated for federal income tax purposes as corporations, are generally not taxed at the corporate level on their “REIT taxable income” that is distributed currently to stockholders. This treatment substantially eliminates the “double taxation” (i.e., taxation at both the corporate and stockholder levels) that generally results from investing in corporations.

      If we fail to qualify as a REIT in any year, however, we will be subject to U.S. federal income tax as if we were a domestic corporation, and our stockholders will be taxed in the same manner as stockholders of ordinary corporations (including, in the case of stockholders other than corporations, potentially being eligible for preferential tax rates on dividends received from us). In that event, we could be subject to potentially significant tax liabilities, the amount of cash available for distribution to our stockholders could be reduced and we would not be obligated to make any distributions.

Tax Consequences of an Investment in Our Common Stock

      The following summary describes the material U.S. federal income tax consequences relating to the purchase, ownership, and disposition of our common stock as of the date hereof. Except where noted, this summary deals only with common stock held as a capital asset and does not deal with special situations, such as those of dealers in securities or currencies, tax-exempt organizations, individual retirement accounts and other tax deferred accounts, financial institutions, life insurance companies, or persons holding our common stock as part of a hedging or conversion transaction or a straddle. Furthermore, the discussion below is based upon the current U.S. federal income tax laws and interpretations thereof as of the date hereof. Such authorities may be repealed, revoked, or modified so as to result in U.S. federal income tax consequences different from those discussed below. In addition, except as otherwise indicated, the following summary does not consider the effect of any applicable foreign, state, local, or other tax laws or estate or gift tax considerations.

      If an entity treated as a partnership for U.S. federal income tax purposes holds our common stock, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of the partnership. If you are a partner of a partnership holding our common stock, you should consult your tax advisor regarding the tax consequences of the ownership and disposition of our common stock.

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      As used herein, a “U.S. holder” of our common stock means a holder that for U.S. federal income tax purposes is:

  •  a citizen or resident of the United States,
 
  •  a corporation or other entity treated as a corporation for U.S. federal income tax purposes that is created or organized in or under the laws of the United States or any political subdivision thereof,
 
  •  an estate the income of which is subject to U.S. federal income taxation regardless of its source, or
 
  •  a trust if (a) a U.S. court is able to exercise primary supervision over the administration of the trust and one or more U.S. persons have the authority to control all substantial decisions of the trust or (b) it has a valid election in place to be treated as a U.S. person.
 
Taxation of Taxable U.S. Holders

      In General. As long as we qualify as a REIT, distributions made to our taxable U.S. holders out of current or accumulated earnings and profits (and not designated as capital gain dividends) will be taken into account by such U.S. holders as ordinary income. U.S. holders that are corporations will not be entitled to a dividends received deduction. See “2003 Legislation” below for a discussion of the application of new preferential tax rates to certain dividends paid by us to a noncorporate U.S. holder.

      To the extent we make distributions in excess of current and accumulated earnings and profits, these distributions are treated first as a tax-free return of capital to the U.S. holder, reducing the tax basis of a U.S. holder’s common stock by the amount of such distribution (but not below zero), with distributions in excess of the U.S. holder’s tax basis treated as proceeds from a sale of common stock, the tax treatment of which is described below. Distributions will generally be taxable, if at all, in the year of the distribution. However, any dividend declared by us in October, November or December of any year and payable to a U.S. holder who held our common stock on a specified record date in any such month shall be treated as both paid by us and received by the U.S. holder on December 31 of such year, provided that the dividend is actually paid by us during January of the following calendar year.

      In general, distributions which are designated by us as capital gain dividends will be taxable to U.S. holders as gain from the sale of assets held for greater than one year, or “long-term capital gain.” That treatment will apply regardless of the period for which a U.S. holder has held the common stock upon which the capital gain dividend is paid. However, corporate U.S. holders may be required to treat up to 20% of certain capital gain dividends as ordinary income. Noncorporate taxpayers are generally taxable at a maximum rate of 15% on long-term capital gain attributable to sales or exchanges occurring on or after May 6, 2003. However, a portion of any capital gain dividends received by noncorporate taxpayers might be subject to tax at a 25% rate to the extent attributable to gains realized on the sale of real property that correspond to our “unrecaptured Section 1250 gain.”

      We may elect to retain, rather than distribute as a capital gain dividend, our net long-term capital gains. In such event, we would pay tax on such retained net long-term capital gains. In addition, to the extent designated by us, a U.S. holder generally would (1) include his proportionate share of such undistributed long-term capital gains in computing his long-term capital gains for his taxable year in which the last day of our taxable year falls (subject to certain limitations as to the amount so includable), (2) be deemed to have paid the capital gains tax imposed on us on the designated amounts included in such U.S. holder’s long-term capital gains, (3) receive a credit or refund for such amount of tax deemed paid by the U.S. holder, (4) increase the adjusted basis of his common stock by the difference between the amount of such includable gains and the tax deemed to have been paid by him, and (5) in the case of a U.S. holder that is a corporation, appropriately adjust its earnings and profits for the retained capital gains in accordance with Treasury Regulations (which have not yet been issued).

      Distributions made by us and gain arising from the sale or exchange by a U.S. holder of common stock will not be treated as passive activity income, and as a result, U.S. holders generally will not be able

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to apply any “passive losses” against this income or gain. U.S. holders may not include in their individual income tax returns any of our net operating losses or capital losses.

      Disposition of Stock. Upon any taxable sale or other disposition of our common stock, a U.S. holder will recognize gain or loss for U.S. federal income tax purposes in an amount equal to the difference between (1) the amount of cash and the fair market value of any property received on the sale or other disposition and (2) the U.S. holder’s adjusted basis in the common stock for tax purposes.

      This gain or loss will be a capital gain or loss, and will be long-term capital gain if our common stock has been held for more than one year at the time of the disposition. Noncorporate U.S. holders are generally taxable at a maximum rate of 15% on long-term capital gain. The Internal Revenue Service has the authority to prescribe, but has not yet prescribed, regulations that would apply a capital gain tax rate of 25% (which is generally higher than the long-term capital gain tax rates for noncorporate U.S. holders) to a portion of capital gain realized by a noncorporate U.S. holder on the sale of REIT stock that would correspond to the REIT’s “unrecaptured Section 1250 gain.” U.S. holders are urged to consult with their own tax advisors with respect to their capital gain tax liability. A corporate U.S. holder will be subject to tax at a maximum rate of 35% on capital gain from the sale of our common stock regardless of its holding period for the stock.

      In general, any loss upon a sale or exchange of our common stock by a U.S. holder who has held such stock for six months or less (after applying certain holding period rules) will be treated as a long-term capital loss, to the extent of distributions (actually made or deemed made in accordance with the discussion above) from us required to be treated by such U.S. holder as long-term capital gain.

      Information Reporting and Backup Withholding. Payments of dividends on our common stock and proceeds received upon the sale, redemption or other disposition of our stock may be subject to Internal Revenue Service information reporting and backup withholding tax. Payments to certain U.S. holders (including, among others, corporations and certain tax-exempt organizations) are generally not subject to information reporting or backup withholding. Payments to a non-corporate U.S. holder generally will be subject to information reporting. Such payments also generally will be subject to backup withholding tax if such holder:

  •  fails to furnish its taxpayer identification number, which for an individual is ordinarily his or her social security number,
 
  •  furnishes an incorrect taxpayer identification number,
 
  •  is notified by the Internal Revenue Service that it has failed to properly report payments of interest or dividends, or
 
  •  fails to certify, under penalties of perjury, that it has furnished a correct taxpayer identification number and that the Internal Revenue Service has not notified the U.S. holder that it is subject to backup withholding.

      A U.S. holder that does not provide us with its correct taxpayer identification number may also be subject to penalties imposed by the Internal Revenue Service. Any amount paid as backup withholding will be creditable against the U.S. holder’s U.S. federal income tax liability, if any, and otherwise will be refundable, provided that the requisite procedures are followed.

      You should consult your tax advisor regarding your qualification for an exemption from backup withholding and information reporting and the procedures for obtaining such an exemption, if applicable.

 
Taxation of Tax-Exempt U.S. Holders

      Based upon a published ruling by the Internal Revenue Service, a distribution by us to, and gain upon a disposition of our common stock by, a U.S. holder that is a tax-exempt entity will not constitute “unrelated business taxable income,” or “UBTI,” provided that the tax-exempt entity has not financed the acquisition of its common stock with “acquisition indebtedness” within the meaning of the Internal

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Revenue Code and the stock is not otherwise used in an unrelated trade or business of the tax-exempt entity. However, for tax-exempt U.S. holders that are social clubs, voluntary employee benefit associations, supplemental unemployment benefit trusts and qualified group legal services plans exempt from U.S. federal income taxation under Sections 501(c)(7), (c)(9), (c)(17) and (c)(20) of the Internal Revenue Code, respectively, income from an investment in us will constitute UBTI unless the organization properly sets aside or reserves such amounts for purposes specified in the Internal Revenue Code. These tax-exempt U.S. holders should consult their own tax advisers concerning these “set aside” and reserve requirements.

      Notwithstanding the preceding paragraph, however, a portion of the dividends paid by us may be treated as UBTI to certain domestic private pension trusts if we are treated as a “pension-held REIT.” We believe that we are not, and we do not expect to become, a “pension-held REIT.” If we were to become a pension-held REIT, these rules generally would only apply to certain pension trusts that held more than 10% of our stock.

 
Taxation of Non-U.S. Holders

      The following is a discussion of certain anticipated U.S. federal income tax consequences of the ownership and disposition of our common stock applicable to non-U.S. holders of such stock. A “non-U.S. holder” is any person that is not a U.S. holder. The discussion is based on current law and is for general information only. The discussion addresses only certain and not all aspects of U.S. federal income taxation. Special rules may apply to certain non-U.S. holders such as “controlled foreign corporations,” “passive foreign investment companies” and “foreign personal holding companies.” Such entities should consult their own tax advisors to determine the U.S. federal, state, local and other tax consequences that may be relevant to them.

      Ordinary Dividends. The portion of dividends received by non-U.S. holders payable out of our current and accumulated earnings and profits which are not attributable to capital gains and which are not effectively connected with a U.S. trade or business of the non-U.S. holder will be subject to U.S. withholding tax at the rate of 30% (unless reduced by an income tax treaty). In general, non-U.S. holders will not be considered engaged in a U.S. trade or business solely as a result of their ownership of our common stock. In cases where the dividend income from a non-U.S. holder’s investment in our common stock is effectively connected with the non-U.S. holder’s conduct of a U.S. trade or business (or, if an income tax treaty applies, is attributable to a U.S. permanent establishment of the non-U.S. holder), the non-U.S. holder generally will be subject to U.S. tax at graduated rates, in the same manner as U.S. holders are taxed with respect to such dividends (and may also be subject to the 30% branch profits tax in the case of a corporate non-U.S. holder).

      Non-Dividend Distributions. Unless our stock constitutes a USRPI (as defined below), distributions by us which are not paid out of our current and accumulated earnings and profits will not be subject to U.S. income or withholding tax. If it cannot be determined at the time a distribution is made whether or not such distribution will be in excess of our current and accumulated earnings and profits, the distribution will be subject to withholding at the rate applicable to dividends. However, the non-U.S. holder may seek a refund of such amounts from the Internal Revenue Service if it is subsequently determined that such distribution was, in fact, in excess of our current and accumulated earnings and profits. If our common stock constitutes a USRPI, a distribution in excess of current and accumulated earnings and profits will be subject to 10% withholding tax and may be subject to additional taxation under FIRPTA (as defined below). However, the 10% withholding tax will not apply to distributions already subject to the 30% dividend withholding.

      We expect to withhold U.S. income tax at the rate of 30% on the gross amount of any distributions of ordinary income made to a non-U.S. holder unless (1) a lower income tax treaty rate applies and proper certification is provided or (2) the non-U.S. holder files an Internal Revenue Service Form W-8ECI with us claiming that the distribution is effectively connected with the non-U.S. holder’s conduct of a U.S. trade or business (or, if an income tax treaty applies, is attributable to a U.S. permanent

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establishment of the non-U.S. holder). However, the non-U.S. holder may seek a refund of such amounts from the Internal Revenue Service if it is subsequently determined that such distribution was, in fact, in excess of our current and accumulated earnings and profits.

      Capital Gain Dividends. Under the Foreign Investment in Real Property Tax Act of 1980, or FIRPTA, a distribution made by us to a non-U.S. holder, to the extent attributable to gains (“USRPI Capital Gains”) from dispositions of United States Real Property Interests, or USRPIs, will be considered effectively connected with a U.S. trade or business of the non-U.S. holder and therefore will be subject to U.S. income tax at the rates applicable to U.S. holders, without regard to whether such distribution is designated as a capital gain dividend. (The properties owned by our material partnership subsidiaries generally are USRPIs.) Distributions subject to FIRPTA may also be subject to a 30% branch profits tax in the hands of a corporate non-U.S. holder that is not entitled to treaty exemption.

      Beginning in 2005, any distribution made by us to a non-U.S. holder, to the extent attributable to USRPI Capital Gains, will not be treated as gain recognized by the non-U.S. holder from the sale or exchange of a USRPI if (1) the distribution is made with respect to any class of stock which is regularly traded on an established securities market located in the United States and (2) the non-U.S. holder did not own more than 5% of such class of stock at any time during the taxable year. The distribution will instead be treated as an ordinary dividend to the non-U.S. holder, and the tax consequences to the non-U.S. holder will be as described above under “Ordinary Dividends.”

      Distributions attributable to our capital gains which are not USRPI Capital Gains generally will not be subject to income taxation, unless (1) investment in the shares is effectively connected with the non-U.S. holder’s U.S. trade or business (or, if an income tax treaty applies, is attributable to a U.S. permanent establishment of the non-U.S. holder), in which case the non-U.S. holder will be subject to the same treatment as U.S. holders with respect to such gain (except that a corporate non-U.S. holder may also be subject to the 30% branch profits tax), or (2) the non-U.S. holder is a non-resident alien individual who is present in the United States for 183 days or more during the taxable year and certain other conditions are present, in which case the nonresident alien individual will be subject to a 30% tax on the individual’s capital gains.

      We will be required to withhold and remit to the Internal Revenue Service 35% of any distributions to non-U.S. holders that are designated as capital gain dividends, or, if greater, 35% of a distribution that could have been designated as a capital gain dividend. Distributions can be designated as capital gains to the extent of our net capital gain for the taxable year of the distribution. The amount withheld is creditable against the non-U.S. holder’s U.S. federal income tax liability.

      Disposition of Stock. Unless our common stock constitutes a USRPI, a sale of such stock by a non-U.S. holder generally will not be subject to U.S. taxation unless (1) the investment in the common stock is effectively connected with the non-U.S. holder’s U.S. trade or business (or, if an income tax treaty applies, is attributable to a U.S. permanent establishment of the non-U.S. holder), or (2) the non-U.S. holder is a non-resident alien individual who is present in the United States for 183 days or more during the taxable year and certain other conditions are present.

      The common stock will not constitute a USRPI if we are a “domestically controlled REIT.” A domestically controlled REIT is a REIT in which, at all times during a specified testing period, less than 50% in value of its shares is held directly or indirectly by non-U.S. holders. We believe that we are, and we expect to continue to be, a domestically controlled REIT, and therefore that the sale of our common stock will not be subject to taxation under FIRPTA. Because our common stock will be publicly traded, however, no assurance can be given that we will continue to be a domestically controlled REIT.

      Even if we do not constitute a domestically controlled REIT, a non-U.S. holder’s sale of our common stock generally will not be subject to tax under FIRPTA as a sale of a USRPI provided that (1) the stock is “regularly traded” (as defined by applicable Treasury Regulations) on an established securities market and (2) the selling non-U.S. holder held (taking into account constructive ownership rules) 5% or less of our outstanding stock at all times during a specified testing period.

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      If gain on the sale of our common stock were subject to taxation under FIRPTA, the non-U.S. holder would be subject to the same treatment as a U.S. holder with respect to such gain (subject to applicable alternative minimum tax and a special alternative minimum tax in the case of nonresident alien individuals). In addition, the purchaser of the common stock could be required to withhold 10% of the purchase price and remit such amount to the Internal Revenue Service.

      Information Reporting and Backup Withholding. Backup withholding will apply to dividend payments made to a non-U.S. holder of our common stock unless the holder has certified that it is not a U.S. holder and the payor has no actual knowledge that the owner is not a non-U.S. holder. Information reporting generally will apply with respect to dividend payments even if certification is provided.

      Payment of the proceeds from a disposition of our stock by a non-U.S. holder made to or through the U.S. office of a broker is generally subject to information reporting and backup withholding unless the holder or beneficial owner certifies that it is not a U.S. holder or otherwise establishes an exemption. Generally, Internal Revenue Service information reporting and backup withholding will not apply to a payment of disposition proceeds if the payment is made outside the United States through a foreign office of a foreign broker-dealer. If the proceeds from a disposition of our stock are paid to or through a foreign office of a U.S. broker-dealer or a non-U.S. office of a foreign broker-dealer that is (i) a “controlled foreign corporation” for U.S. federal income tax purposes, (ii) a person 50% or more of whose gross income from all sources for a specified three-year period was effectively connected with a U.S. trade or business, (iii) a foreign partnership with one or more partners who are U.S. persons and who in the aggregate hold more than 50% of the income or capital interest in the partnership, or (iv) a foreign partnership engaged in the conduct of a trade or business in the United States, then backup withholding and information reporting generally will apply unless the non-U.S. holder satisfies certification requirements regarding its status as a non-U.S. holder and the broker-dealer has no actual knowledge that the owner is not a non-U.S. holder.

      A non-U.S. holder should consult its tax advisor regarding application of withholding and backup withholding in its particular circumstance and the availability of and procedure for obtaining an exemption from withholding and backup withholding under current Treasury Regulations.

Other Tax Considerations

      2003 Legislation. Legislation was enacted in 2003 that, in the case of noncorporate taxpayers, generally reduces the maximum long-term capital gains tax rate from 20% to 15% (for sales or exchanges on or after May 6, 2003, through taxable years beginning before January 1, 2009) and reduces the maximum tax rate on most dividends from 38.6% to 15% (for taxable years beginning after December 31, 2002 and before January 1, 2009). The 2003 legislation also reduces the maximum tax rate imposed on noncorporate taxpayers’ ordinary income from 38.6% to 35%.

      In general, dividends paid by REITs are not eligible for the new 15% tax rate on dividends. However, the 15% tax rate for long-term capital gains and dividends will generally apply to:

  •  long-term capital gains, if any, recognized on the disposition of our common stock;
 
  •  our distributions designated as long-term capital gain dividends attributable to sales or exchanges on or after May 6, 2003 (except to the extent attributable to “unrecaptured Section 1250 gain,” which continues to be subject to a 25% tax rate);
 
  •  our dividends attributable to dividends received by us after December 31, 2002 from taxable corporations (such as taxable REIT subsidiaries); and
 
  •  our dividends to the extent attributable to income that was subject to tax at the REIT level (for example, if we distributed less than 100% of our taxable income).

      Although the legislation does not adversely affect the taxation of REITs or dividends paid by REITs, the more favorable treatment of regular corporate dividends could cause investors other than corporations to consider stocks of other dividend-paying corporations to be more attractive relative to stocks of REITs.

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It is not possible to predict whether this change in perceived relative value will occur, or what the effect will be on the market price of our stock.

      Dividend Reinvestment Program. Stockholders participating in our dividend reinvestment program are treated as having received the gross amount of any cash distributions which would have been paid by us to such stockholders had they not elected to participate in the program. These distributions will retain the character and tax effect applicable to distributions from us generally. Participants in the dividend reinvestment program are subject to U.S. federal income and withholding tax on the amount of the deemed distributions to the extent that such distributions represent dividends or gains, even though they receive no cash. Shares of our stock received under the program will have a holding period beginning with the day after purchase, and a tax basis equal to their cost (which is the gross amount of the distribution).

      Possible Legislative or Other Actions Affecting Tax Considerations. Prospective investors should recognize that the present U.S. federal income tax treatment of an investment in us may be modified by legislative, judicial or administrative action at any time, and that any such action may affect investments and commitments previously made. The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process and by the Internal Revenue Service and the U.S. Treasury Department, resulting in revisions of regulations and revised interpretations of established concepts as well as statutory changes. Revisions in U.S. federal tax laws and interpretations thereof could adversely affect the tax consequences of an investment in us.

      In particular, the American Jobs Creation Act of 2004, which was signed by the President on October 22, 2004, amends certain rules relating to REITs. Among other changes, the new legislation will:

  •  effective retroactively for taxable years after December 31, 2000, expand the straight debt safe harbor under which certain types of securities are disregarded as securities when calculating the 10% value limitation discussed above, so that the safe harbor would apply to, among other things, any loan to an individual or estate, certain rental agreements, any obligation to pay rents from real property, and any security issued by a real estate investment trust;
 
  •  effective retroactively for taxable years after December 31, 2000, provide specific safe-harbor rules, applicable solely for purposes of the special rules regarding rents received from a taxable REIT subsidiary, regarding the dates for testing whether 90% percent of a property owned by a REIT is rented to unrelated persons and whether the rents paid by related persons are substantially comparable to unrelated party rents;
 
  •  eliminate the exclusion from potential “redetermined rent” treatment of amounts received by a REIT for services customarily furnished or rendered by a taxable REIT subsidiary in connection with the rental of real property;
 
  •  exclude, for purposes of the 95% income test, income or gain from identified hedging transactions entered into to reduce risk on indebtedness incurred to acquire or carry real estate assets;
 
  •  amend the computation of the tax imposed on a REIT that fails to satisfy the 95% income test, by applying a taxable fraction based on 95% (rather than the current 90%) of the REIT’s gross income;
 
  •  in lieu of REIT disqualification in the case of a de minimis violation of the 5% or 10% asset tests, permit the REIT to dispose of the excess assets or otherwise come into compliance within six months of the end of the quarter in which the failure is identified without penalty;
 
  •  provide a similar exception in the case of non-de minimis asset test failures, if the IRS is notified, the failure was due to reasonable cause and a penalty tax is paid;
 
  •  impose monetary penalties, in lieu of REIT disqualification, for the failure to meet REIT qualification requirements other than the asset and income tests, provided that the failure was due to reasonable cause and the REIT pays a per-failure penalty.

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The foregoing is a non-exhaustive list of changes made by the legislation. Except as indicated above, the changes apply to taxable years beginning after the date of enactment of the legislation.

      State and Local Taxes. We and our stockholders may be subject to state or local taxation in various jurisdictions, including those in which we or they transact business or reside. The state and local tax treatment of us and our stockholders may not conform to the U.S. federal income tax consequences discussed above. Consequently, prospective stockholders should consult their own tax advisers regarding the effect of state and local tax laws on an investment in our common stock.

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UNDERWRITING

      Subject to the terms and conditions stated in the underwriting agreement dated as of the date of this prospectus supplement, Citigroup Global Markets Inc., as the underwriter, has agreed to purchase, and we have agreed to sell to Citigroup Global Markets Inc., 3,500,000 shares of our common stock.

      The underwriting agreement provides that the obligation of the underwriter to purchase the shares in this offering is subject to approval of legal matters by counsel and to other conditions. The underwriter is obligated to purchase all the shares if it purchases any of the shares.

      We have granted an option to the underwriter to purchase up to 525,000 additional shares of common stock. The underwriter may exercise this option for 30 days from the date of this prospectus supplement solely to cover any over-allotments. If the underwriter exercises this over-allotment option, the underwriter will be obligated, subject to conditions contained in the underwriting agreement, to purchase these additional shares.

      Our common stock is listed on the New York Stock Exchange under the symbol “UDR.”

      Subject to specified exceptions, we and certain of our executive officers and directors have agreed that for a period of 30 days from the date of this prospectus supplement, we and they will not, without the prior written consent of the underwriter, sell, pledge or otherwise dispose of any shares of our common stock or any securities convertible into or exchangeable for our common stock. The underwriter in its sole discretion may release any of the securities subject to these lock-up agreements at any time without notice.

      The following table shows the underwriting discounts and commissions that we are to pay to the underwriter in connection with this offering. These amounts are shown assuming both no exercise and full exercise of the underwriter’s option to purchase additional shares of common stock.

                 
Paid by Us

No Exercise Full Exercise


Per share
  $ 0.15     $ 0.15  
Total
  $ 525,000     $ 603,750  

      In addition to the underwriting discount, the underwriter will receive a commission equivalent from investors in the amount of $0.05 for each share of common stock sold to those investors in the offering.

      We estimate that the total expenses, excluding the underwriting discount, will be $100,000.

      In connection with the offering, Citigroup may purchase and sell shares of common stock in the open market. These transactions may include short sales, syndicate covering transactions and stabilizing transactions. Short sales involve syndicate sales of common stock in excess of the number of shares to be purchased by the underwriter in the offering, which creates a syndicate short position. “Covered” short sales are sales of shares made in an amount up to the number of shares represented by the underwriter’s over-allotment option. In determining the source of shares to close out the covered syndicate short position, the underwriter will consider, among other things, the price of shares available for purchase in the open market as compared to the price at which it may purchase shares through the over-allotment option. Transactions to close out the covered syndicate short involve either purchases of the common stock in the open market after the distribution has been completed or the exercise of the over-allotment option. The underwriter may also make “naked” short sales of shares in excess of the over-allotment option. The underwriter must close out any naked short position by purchasing shares of common stock in the open market. A naked short position is more likely to be created if the underwriter is concerned that there may be downward pressure on the price of the shares in the open market after pricing that could adversely affect investors who purchase in the offering. Stabilized transactions consist of bids for or purchases of shares in the open market while the offering is in progress.

      The underwriter and its affiliates have performed investment banking and advisory services for us from time to time for which they have received customary fees and reimbursement of expenses. The underwriter and its affiliates may, from time to time, engage in transactions with and perform services for us in the

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ordinary course of their businesses. An affiliate of the underwriter is a lender under our $500 million revolving credit facility and will receive its proportionate share of the amount of the credit facility to be repaid with the proceeds of this offering.

      We have agreed to indemnify the underwriter against certain liabilities, including liabilities under the Securities Act of 1933, as amended, or to contribute to payments the underwriter may be required to make because of any of those liabilities.

EXPERTS

      Ernst & Young LLP, independent registered public accounting firm, have audited our consolidated financial statements and schedule for the year ended December 31, 2003, included in our Current Report on Form 8-K filed on August 20, 2004, as set forth in their report, which is incorporated by reference in this prospectus supplement and elsewhere in the registration statement. Ernst & Young LLP have also audited: (i) the combined statement of revenue and certain expenses of Harbor Greens Apartments, Pinebrook Village Apartments, Huntington Vista Apartments, and Windjammer Apartments for the year ended December 31, 2002, and the statement of revenue and certain expenses of the Inlet Bay at Gateway Apartments for the year ended December 31, 2002, included in our Current Report on Form 8-K filed on January 9, 2004 and also included in our Current Report on Form 8-K/ A filed on February 13, 2004; (ii) the statement of revenue and certain expenses of Carriage Homes at Wyndham for the year ended December 31, 2002, and the combined statement of revenue and certain expenses of Waterside Towers, Waterside Towers Townhomes and The Commons at Town Square for the year ended December 31, 2002, included in our Current Report on Form 8-K/ A filed on February 13, 2004; and (iii) the combined statement of revenue and certain expenses of Arborview, Calvert’s Walk and Liriope for the year ended December 31, 2003, the statement of revenue and certain expenses of The Preserve at Brentwood for the year ended December 31, 2003, and the combined statement of revenue and certain expenses of The Essex Properties for the year ended December 31, 2003, included in our Current Reports on Form 8-K filed on September 29, 2004 and October 5, 2004, as set forth in their reports, which are incorporated by reference in this prospectus supplement and elsewhere in the registration statement. Such financial statements and schedule are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

LEGAL MATTERS

      Morrison & Foerster LLP will pass upon the legality of the shares of common stock offered hereby and certain U.S. federal income tax matters for us. Sidley Austin Brown & Wood LLP will pass upon certain legal matters for the underwriter.

HOW TO OBTAIN MORE INFORMATION

      We file reports, proxy statements and other information with the SEC. You may obtain a free copy of our annual reports on Form 10-K, quarterly reports on Form 10-Q, and current reports on Form 8-K, and amendments to those reports on the day of filing with the SEC on our website at www.udrt.com, or by sending an e-mail message to ir@udrt.com. You also may read our filings at the SEC’s Web site at http://www.sec.gov. In addition, you may read any document we file at the SEC’s public reference room at 450 Fifth Street, NW, Room 1024, Washington, D.C. 20549. Please call the SEC toll free at 1-800-SEC-0330 for information about its public reference rooms.

      Our reports, proxy statements and other information about us may also be inspected at:

The New York Stock Exchange

20 Broad Street
New York, New York 10005

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      We have filed with the SEC a registration statement on Form S-3 (File No. 333-115696) under the Securities Act of 1933. This prospectus supplement and accompanying prospectus do not contain all of the information in the registration statement. If any information varies between the prospectus supplement and the accompanying prospectus, you should rely on the information in the prospectus supplement. We have omitted certain parts of the registration statement, as permitted by the rules and regulations of the SEC. You may inspect and copy the registration statement, including exhibits, at the SEC’s public reference rooms or Web site. Our statements in this prospectus supplement and accompanying prospectus about the contents of any contract or other document are not necessarily complete. You should refer to the copy of each contract or other document we have filed as an exhibit to the registration statement for complete information.

INCORPORATION OF INFORMATION FILED WITH THE SEC

      The SEC allows us to “incorporate by reference” into this prospectus supplement and the accompanying prospectus the information we file with it. This means that we have disclosed important information to you by referring you to those documents. The information we incorporate by reference is considered a part of this prospectus supplement and the accompanying prospectus, and information that we file with the SEC, prior to the completion of this offering, will automatically update and supersede this information. Our SEC filing number is 1-10524. In addition to the documents incorporated by reference in the accompanying prospectus, we incorporate by reference the documents listed below:

  •  Annual Report on Form 10-K for the year ended December 31, 2003.
 
  •  Quarterly Report on Form 10-Q for the quarter ended March 31, 2004.
 
  •  Quarterly Report on Form 10-Q for the quarter ended June 30, 2004.
 
  •  Current Reports on Form 8-K and Form 8-K/ A filed with the SEC on January 9, January 13, February 13, February 18, March 12, May 14, June 18, August 20, September 7 (excluding information furnished under Item 7.01), September 29, September 30 (excluding information furnished under Item 7.01), September 30, October 5, and October 21, 2004.
 
  •  Current Report on Form 8-K filed with the SEC on June 11, 2003.
 
  •  Our Proxy Statement dated April 2, 2004, filed in connection with our May 4, 2004 Annual Meeting of Stockholders.
 
  •  The description of our capital stock contained in our Registration Statement on Form 8-A/ A filed with the SEC on July 28, 2000, including any amendments or reports filed with the Securities and Exchange Commission for the purpose of updating such description.

      We are also incorporating by reference any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 after the date of this prospectus supplement and prior to the completion of this offering. In no event, however, will any of the information that we disclose under Item 2.02 or Item 7.01 of any Current Report on Form 8-K that we may from time to time furnish to the SEC be incorporated by reference into, or otherwise included in, this prospectus supplement.

      You may request a copy of any of the filings referred to above at no cost by writing or calling us at the following address:

United Dominion Realty Trust, Inc.

1745 Shea Center Drive, Suite 200
Highlands Ranch, Colorado 80129
Attention: Investor Relations
Telephone: (720) 283-6120

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      We maintain a web site at www.udrt.com. The reference to our web site does not constitute incorporation by reference of the information contained at the site and you should not consider it a part of this prospectus supplement or the accompanying prospectus.

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PROSPECTUS

(UNITED DOMINION LOGO)

$1,500,000,000

Debt Securities

Preferred Stock

Common Stock

         This prospectus contains a general description of the debt and equity securities that we may offer for sale. We may offer these securities in one or more offerings in amounts, at prices and on terms determined at the time of the offering. We will provide the specific terms of these securities and the terms of the offering in supplements to this prospectus. You should read this prospectus and any prospectus supplement carefully before you invest.

      Our common stock is quoted on the New York Stock Exchange under the symbol “UDR.”


       Investing in our securities involves risks. Before buying our securities, you should refer to the risk factors included in our periodic reports, in prospectus supplements relating to specific offerings and in other information that we file with the Securities and Exchange Commission. See “Risk Factors” on page 3.


       Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

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      You should only rely on the information contained or incorporated by reference in this prospectus and in the prospectus supplement. We have not authorized anyone to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We will not make an offer to sell these securities in any jurisdiction where the offer and sale is not permitted. You should assume that the information appearing in this prospectus, as well as information we previously filed with the Securities and Exchange Commission and incorporated by reference, is accurate as of the date on the front cover of this prospectus only. Our business, financial condition, results of operations and prospects may have changed since that date.

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ABOUT THIS PROSPECTUS

      This prospectus is part of a “shelf” registration statement that we filed with the Securities and Exchange Commission (the “SEC”). By using a shelf registration statement, we may sell up to $1,500,000,000 aggregate amount of debt securities, preferred stock and common stock, either separately or in units, from time to time in one or more offerings. This prospectus only provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a supplement to this prospectus that will contain specific information about the terms of the offering and the securities offered, including the amount, the price and the terms determined at the time of the offering. The prospectus supplement may also add to, update or change information contained in this prospectus. Before purchasing any securities, you should carefully read both this prospectus and any prospectus supplement, together with additional information described under the headings “Where You Can Find More Information” and “Incorporation of Information Filed with the SEC.”

      The registration statement that contains this prospectus (including the exhibits to the registration statement) contains additional information about us and the securities offered under this prospectus. The registration statement can be read at the SEC’s web site or at the SEC’s offices mentioned below under the heading “Where You Can Find More Information.”

WHERE YOU CAN FIND MORE INFORMATION

      We file annual, quarterly and special reports, proxy statements and other information with the SEC. Our filings with the SEC are available to the public on the Internet at the SEC’s web site at http://www.sec.gov. You may also read and copy any document we file with the SEC at the SEC’s public reference room at 450 Fifth Street, N.W., Washington, DC 20549. Please call the SEC at 1-800-SEC-0330 for more information about their public reference room and their copy charges. Our SEC filings and other information concerning us are also available at The New York Stock Exchange, 20 Broad Street, New York, New York 10005.

INCORPORATION OF INFORMATION FILED WITH THE SEC

      The SEC allows us to “incorporate by reference” into this prospectus the information we file with the SEC, which means that we can disclose important information to you by referring you to those documents. Any information that we incorporate by reference is considered part of this prospectus. Any information that we file with the SEC after the date of this prospectus will automatically update and supersede the information contained in this prospectus. Our SEC file number is 001-10524.

      We are incorporating by reference the following documents that we have previously filed with the SEC:

  •  Annual Report on Form 10-K for the year ended December 31, 2003.
 
  •  Quarterly Report on Form 10-Q for the quarter ended March 31, 2004.
 
  •  Current Reports on Form 8-K and Form 8-K/ A filed with the SEC on January 9, January 13, February 13, February 18, March 12 and May 14, 2004.
 
  •  The description of our capital stock contained in our Registration Statement on Form 8-A/ A filed with the SEC on July 28, 2000, including any amendments or reports filed with the SEC for the purpose of updating such description.

      We are also incorporating by reference any future filings that we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 after the date of this prospectus. In no event, however, will any of the information that we disclose under Item 9 or Item 12 of any Current Report on Form 8-K that we may from time to time furnish to the SEC be incorporated by reference into, or otherwise included in, this prospectus.

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      You may obtain a copy of any of the documents referred to above without charge by written or oral request to:

United Dominion Realty Trust, Inc.

1745 Shea Center Drive, Suite 200
Highlands Ranch, Colorado 80129
Attention: Investor Relations
Telephone: (720) 283-6120

      We maintain a web site at www.udrt.com. The reference to our web site does not constitute incorporation by reference of the information contained at the site and you should not consider it a part of this prospectus.

FORWARD-LOOKING STATEMENTS

      This prospectus, including the documents incorporated by reference in this prospectus, contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and the Private Securities Litigation Reform Act of 1995. Forward-looking statements, by their nature, involve estimates, projections, goals, forecasts, assumptions, risks and uncertainties that could cause actual results or outcomes to differ materially from those expressed in a forward-looking statement. Such forward-looking statements include, without limitation, statements concerning property acquisitions and dispositions, development activity and capital expenditures, capital raising activities, rent growth, occupancy and rental expense growth. Examples of forward-looking statements also include statements regarding our expectations, beliefs, plans, goals, objectives and future financial or other performance. Words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” and variations of such words and similar expressions are intended to identify such forward-looking statements. Such statements involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from the results of operations or plans expressed or implied by such forward-looking statements. Such factors include, among other things, unanticipated adverse business developments affecting us or our properties, adverse changes in the real estate markets, and general and local economic and business conditions. Any forward-looking statement speaks only as of the date on which it is made. Except to fulfill our obligations under the federal securities laws, we undertake no obligation to update any such statement to reflect events as circumstances after the date on which it is made.

      Although we believe that the assumptions underlying the forward-looking statements contained herein are reasonable, any of the assumptions could be inaccurate, and therefore such statements included in this prospectus, including the documents incorporated by reference in this prospectus, may not prove to be accurate. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that the results or conditions described in such statements or our objectives and plans will be achieved.

UNITED DOMINION REALTY TRUST, INC.

      We are a self-administered equity real estate investment trust, or REIT, that owns, acquires, renovates, develops and manages middle-market apartment communities nationwide. At March 31, 2004, our portfolio included 267 communities with a total of 77,259 apartment homes nationwide.

      We have elected to be taxed as a REIT under the Internal Revenue Code of 1986. To continue to qualify as a REIT, we must continue to meet certain tests which, among other things, generally require that our assets consist primarily of real estate, our income be derived primarily from real estate, and that we distribute at least 90% of our REIT taxable income (other than our net capital gain) to our stockholders. As a qualified REIT, we generally will not be subject to federal income taxes on our REIT taxable income to the extent we distribute such income to our stockholders.

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      Our principal executive offices are located at 1745 Shea Center Drive, Suite 200, Highlands Ranch, Colorado 80129. The telephone number of our principal executive offices is (720) 283-6120. Our corporate headquarters is located at 400 East Cary Street, Richmond, Virginia 23219. The telephone number of our corporate headquarters is (804) 780-2691.

RECENT DEVELOPMENTS

      Please see the applicable prospectus supplement and our recent public filings for recent developments.

RISK FACTORS

      Investing in our securities involves risks. Before you invest in any of our securities, you should carefully consider the risk factors described under the heading “Factors Affecting Our Business and Prospects” in the section entitled “Business” in our most recent Annual Report on Form 10-K, which is incorporated by reference into this prospectus and the accompanying prospectus supplement, as the same may be updated from time to time by our filings under the Securities Exchange Act of 1934, as well as other information contained or incorporated by reference into this prospectus and the accompanying prospectus supplement.

USE OF PROCEEDS

      Unless we state otherwise in the applicable prospectus supplement, we will use the net proceeds we receive from the sale of the securities offered by this prospectus and the accompanying prospectus supplement for general corporate purposes. General corporate purposes may include additions to working capital, capital expenditures, repayment of debt, funding improvements to properties, and acquiring and developing additional properties. Pending application of the net proceeds, we intend to invest the proceeds in interest bearing accounts and short-term, interest bearing securities.

RATIOS OF EARNINGS TO FIXED CHARGES AND EARNINGS TO

COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS
                                                         
Three Months
Ended
March 31, Years Ended December 31,


2004 2003 2003 2002 2001 2000 1999







Ratio of earnings to fixed charges
    1.46 x     1.34 x     1.39 x     1.07 x     1.15 x     1.14 x     1.33x  
Ratio of earnings to combined fixed charges and preferred stock dividends
    1.19 x     1.10 x     1.01 x                       1.07x  

      For the year ended December 31, 2002, the ratio of earnings to combined fixed charges and preferred stock dividend was deficient of achieving a 1:1 ratio by $18.8 million. For the year ended December 31, 2001, the ratio of earnings to combined fixed charges and preferred stock dividend was deficient of achieving a 1:1 ratio by $9.2 million. For the year ended December 31, 2000, the ratio of earnings to combined fixed charges and preferred stock dividend was deficient of achieving a 1:1 ratio by $14.5 million.

      We define “earnings” as:

  •  income from continuing operations before extraordinary items, plus
 
  •  the portion of rents that is representative of the interest factor,
 
  •  minority interests,
 
  •  losses on equity investments in joint ventures, and
 
  •  interest on indebtedness.

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      We define “fixed charges” as the sum of:

  •  interest on indebtedness,
 
  •  capitalized interest, and
 
  •  the portion of rents that is representative of the interest factor.

      Where applicable, we add the amount of our preferred stock dividend.

DESCRIPTION OF DEBT SECURITIES

      The following is a general description of the material terms of our debt securities. We will provide additional terms of our debt securities that we may offer in a prospectus supplement.

      The debt securities that we may offer with this prospectus are governed by documents called “indentures.” We will issue our senior debt securities under an indenture dated as of November 1, 1995, between us and the trustee under the indenture, which is Wachovia Bank, National Association (formerly First Union National Bank of Virginia). We refer to this indenture as the “Senior Indenture.” We will issue our subordinated debt securities under the indenture dated as of August 1, 1994, between us and the trustee under the indenture, which is SunTrust Bank (formerly known as Crestar Bank). We refer to this indenture as the “Subordinated Indenture.” As trustees, Wachovia Bank and SunTrust Bank serve two roles. First, the trustees can enforce your rights against us if we default on the debt securities. Second, the trustees assist in administering our obligations under the debt securities, such as payments of interest.

      Below, we describe the indentures and summarize some of their provisions. However, we have not described every aspect of the debt securities. You should refer to the actual indentures for a complete description of their provisions and the definitions of terms used in them. In this prospectus, we provide only the definitions for some of the more important terms in the indentures. Wherever we refer to defined terms of the indentures in this prospectus or in the prospectus supplement, we are incorporating by reference those defined terms. The Senior Indenture and Subordinated Indenture are exhibits to the registration statement of which this prospectus is a part.

General Terms of Our Debt Securities

      We may offer with this prospectus up to $1,500,000,000 in aggregate principal amount of unsecured debt obligations. However, the indentures do not limit the aggregate principal amount of debt securities that we may issue and provide that we may issue debt securities from time to time in one or more series, except that the Senior Indenture contains limitations on the amount of indebtedness that we may incur, as described in more detail below.

      The senior debt securities will be unsecured obligations and will rank on a parity with all of our other unsecured and unsubordinated indebtedness. The subordinated debt securities will be unsecured obligations and will be subordinated in right of payment to all senior debt.

      Each indenture allows for any one or more series of debt securities to have one or more trustees. Any trustee under either indenture may resign or be removed with respect to one or more series of debt securities, and a successor trustee may be appointed to act with respect to the series. If two or more persons are acting as trustee with respect to different series of debt securities, each trustee will be a trustee of a trust under the applicable indenture separate and apart from the trust administered by any other trustee. Unless this prospectus states differently, each trustee of a series of debt securities may take any action that we may take under the applicable indenture.

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      The prospectus supplement will describe the particular terms of each series of debt securities, as well as any modifications or additions to the general terms of the indenture applicable to the series of debt securities. This description will contain all or some of the following as applicable:

  •  the title of the debt securities and whether the debt securities are senior debt securities or subordinated debt securities,
 
  •  the aggregate principal amount of the debt securities being offered, the aggregate principal amount of debt securities outstanding, and any limit on the principal amount, including the aggregate principal amount of debt securities authorized,
 
  •  the percentage of the principal amount at which we will issue the debt securities and, if other than the principal amount of the debt securities, the portion of the principal amount payable upon declaration of acceleration of their maturity, or, if applicable, the portion of the principal amount of the debt securities that is convertible into our capital stock, or the method for determining the portion,
 
  •  if convertible, in connection with the preservation of our status as a REIT, any applicable limitations on the ownership or transferability of our capital stock into which the debt securities are convertible,
 
  •  the date or dates, or the method for determining the date or dates, on which the principal of the debt securities will be payable and the amount of principal payable on the debt securities,
 
  •  the rate or rates, which may be fixed or variable, at which the debt securities will bear interest, if any, or the method for determining the rate or rates, the date or dates from which the interest will accrue or the method for determining the date or dates, the interest payment dates on which any interest will be payable and the regular record dates for the interest payment dates or the method for determining the dates, the person to whom interest should be payable, and the basis for calculating interest if other than that of a 360-day year consisting of twelve 30-day months,
 
  •  the place or places where the principal of, and any premium or make-whole amount as defined in each indenture, any interest on, and any additional amounts payable in respect of, the debt securities will be payable, where holders of debt securities may surrender for registration of transfer or exchange, and where holders may serve notices or demands to or upon us in respect of the debt securities and the applicable indenture,
 
  •  the period or periods within which, the price or prices, including any premium or make-whole amount, at which, the currency or currencies, currency unit or units or composite currency or currencies in which, and other terms and conditions upon which the debt securities may be redeemed in whole or in part at our option, if we have the option,
 
  •  our obligation, if any, to redeem, repay or purchase the debt securities pursuant to any sinking fund or analogous provision or at the option of a holder of the debt securities, and the period or periods within which or the date or dates on which, the price or prices at which, the currency or currencies, currency unit or units or composite currency or currencies in which, and other terms and conditions upon which the debt securities will be redeemed, repaid or purchased, in whole or in part, pursuant to the obligation,
 
  •  if other than United States dollars, the currency or currencies in which the debt securities will be denominated and payable, which may be a foreign currency or units of two or more foreign currencies or a composite currency or currencies,
 
  •  whether the amount of payments of principal of, and any premium or make-whole amount, or any interest on the debt securities may be determined with reference to an index, formula or other method, which index, formula or method may be based on one or more currencies, currency units, composite currencies, commodities, equity indices or other indices, and the manner for determining the amounts,

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  •  whether the principal of, and any premium or make-whole amount, or any interest or additional amounts on the debt securities are to be payable, at the election of United Dominion or a holder, in a currency or currencies, currency unit or units or composite currency or currencies other than that in which the debt securities are denominated or stated to be payable, the period or periods within which, and the terms and conditions upon which, the election may be made, and the time and manner of, and identity of the exchange rate agent with responsibility for, determining the exchange rate between the currency or currencies, currency unit or units or composite currency or currencies in which the debt securities are denominated or stated to be payable and the currency or currencies, currency unit or units or composite currency or currencies in which the debt securities are to be so payable,
 
  •  provisions, if any, granting special rights to the holders of the debt securities upon the occurrence of specified events,
 
  •  any deletions from, modifications of or additions to the events of default or covenants of United Dominion with respect to the debt securities, whether or not the events of default or covenants are consistent with the events of default or covenants set forth in the applicable indenture,
 
  •  whether the debt securities will be issued in certificated or book-entry form,
 
  •  the applicability, if any, of the defeasance and covenant defeasance provisions of the applicable indenture,
 
  •  whether and under what circumstances we will pay additional amounts as contemplated in the applicable indenture on the debt securities in respect of any tax, assessment or governmental charge and, if so, whether we will have the option to redeem the debt securities rather than pay the additional amounts, and the terms of the option, and
 
  •  any other terms of the debt securities not inconsistent with the provisions of the applicable indenture.

      The debt securities may be original issue discount securities, which are debt securities that may provide for less than their entire principal amount to be payable upon declaration of acceleration of their maturity. Special U.S. federal income tax, accounting and other considerations applicable to original issue discount securities will be described in the prospectus supplement.

      We will provide you with more information in the applicable prospectus supplement regarding any deletions, modifications or additions to the events of default or covenants that are described below, including any addition of a covenant or other provision.

Denominations, Interest, Registration and Transfer

      Unless the applicable prospectus supplement states differently, the debt securities of any series issued in registered form will be issuable in denominations of $1,000 and integral multiples of $1,000. Unless the prospectus supplement states otherwise, the debt securities of any series issued in bearer form will be issuable in denominations of $5,000.

      Unless otherwise provided in the applicable prospectus supplement, the trustees will pay the principal of and any premium and interest on the debt securities and will register the transfer of any debt securities at their offices. However, at our option, we may distribute interest payments by mailing a check to the address of each holder of debt securities that appears on the register for the debt securities.

      Any interest on a debt security not punctually paid or duly provided for on any interest payment date will cease to be payable to the holder on the applicable regular record date. This defaulted interest may be paid to the person in whose name the debt security is registered at the close of business on a special record date for the payment of the defaulted interest. We will set the special record date and give the holder of the debt security at least 10 days’ prior notice. In the alternative, this defaulted interest may be paid at any time in any other lawful manner, all as more completely described in the applicable indenture.

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      Subject to any limitations imposed upon debt securities issued in book-entry form, the debt securities of any series will be exchangeable for other debt securities of the same series and of a like aggregate principal amount and tenor of different authorized denominations upon surrender to the applicable trustee of the debt securities. In addition, subject to any limitations imposed upon debt securities issued in book-entry form, a holder may surrender the debt securities to the trustee for conversion or registration of transfer. Every debt security surrendered for conversion, registration of transfer or exchange will be duly endorsed or accompanied by a written instrument of transfer from the holder. A holder will not have to pay a service charge for any registration of transfer or exchange of any debt securities, but we may require payment of a sum sufficient to cover any applicable tax or other governmental charge.

      If the prospectus supplement refers to any transfer agent, in addition to the applicable trustee that we initially designated with respect to any series of debt securities, we may at any time rescind the designation of the transfer agent or approve a change in the location through which the transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the series. We may at any time designate additional transfer agents with respect to any series of debt securities.

      Neither we nor the trustees will be required to:

  •  issue, register the transfer of or exchange debt securities of any series during a period beginning at the opening of business 15 days before any selection of debt securities of that series to be redeemed and ending at the close of business on the day of mailing of the relevant notice of redemption,
 
  •  register the transfer of or exchange any debt security, or portion thereof, called for redemption, except the unredeemed portion of any debt security being redeemed in part, or
 
  •  issue, register the transfer of or exchange any debt security that has been surrendered for repayment at the holder’s option, except the portion, if any, of the debt security not to be repaid.

Merger, Consolidation or Sale

      We may consolidate with, or sell, lease or convey all or substantially all of our assets to, or merge with or into, any other entity, provided that:

  •  either we will be the continuing entity, or the successor entity formed by or resulting from the consolidation or merger or that will have received the transfer of the assets is a person organized and existing under the laws of the United States or any state and will expressly assume payment of the principal of, and any premium or make-whole amount, and interest on all of the debt securities and the due and punctual performance and observance of all of the covenants and conditions contained in each indenture,
 
  •  immediately after giving effect to the transaction and treating any resulting indebtedness that becomes our or any subsidiary’s obligation as having been incurred by us or the subsidiary at the time of the transaction, no event of default under the indenture, and no event which, after notice or the lapse of time, or both, would become an event of default, will have occurred and be continuing, and
 
  •  we receive an Officers’ Certificate and legal opinion as to compliance with these conditions.

Covenants Applicable to Our Senior Debt Securities

      The Senior Indenture provides that we will not, and will not permit any subsidiary to, incur any Debt (as defined below) if, immediately after giving effect to the incurrence of the additional Debt and the application of the proceeds from the Debt, the aggregate principal amount of all of our outstanding Debt on a consolidated basis determined in accordance with generally accepted accounting principles is greater than 60% of the sum of, without duplication:

  •  our Total Assets (as defined below) as of the end of the calendar quarter covered in our Annual Report on Form 10-K or Quarterly Report on Form 10-Q, as the case may be, most recently filed

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  with the SEC, or, if the filing is not permitted under the Exchange Act, with the trustee, prior to the incurrence of the additional Debt, and
 
  •  the purchase price of any real estate assets or mortgages receivable acquired, and the amount of any securities offering proceeds received, to the extent the proceeds were not used to acquire real estate assets or mortgages receivable or used to reduce Debt, by us or any subsidiary since the end of the calendar quarter, including those proceeds obtained in connection with the incurrence of the additional Debt.

      In addition to the foregoing limitations on the incurrence of Debt, the Senior Indenture provides that we will not, and will not permit any subsidiary to, incur any Debt secured by any mortgage, lien, charge, pledge, encumbrance or security interest of any kind upon any of our or any subsidiary’s property if, immediately after giving effect to the incurrence of the Debt and the application of the proceeds from the Debt, the aggregate principal amount of all of our outstanding Debt on a consolidated basis that is secured by any mortgage, lien, charge, pledge, encumbrance or security interest on our or any subsidiary’s property is greater than 40% of our Total Assets.

      In addition to the foregoing limitations on the incurrence of Debt, the Senior Indenture provides that we will not, and will not permit any subsidiary to, incur any Debt if the ratio of Consolidated Income Available for Debt Service (as defined below) to the Annual Service Charge (as defined below) for the four consecutive fiscal quarters most recently ended prior to the date on which the additional Debt is to be incurred will have been less than 1.5, on a pro forma basis after giving effect to the Debt and to the application of the proceeds from the Debt, and calculated on the assumption that:

  •  the Debt and any other Debt incurred since the first day of the four-quarter period and the application of the proceeds therefrom, including to refinance other Debt, had occurred at the beginning of the period,
 
  •  our repayment or retirement of any other Debt since the first day of the four-quarter period had been incurred, repaid or retired at the beginning of the period, except that, in making the computation, the amount of Debt under any revolving credit facility will be computed based upon the average daily balance of the Debt during the period,
 
  •  in the case of Acquired Debt (as defined below) or Debt incurred in connection with any acquisition since the first day of the four-quarter period, the related acquisition had occurred as of the first day of the period with the appropriate adjustments with respect to the acquisition being included in the pro forma calculation, and
 
  •  in the case of our acquisition or disposition of any asset or group of assets since the first day of the four-quarter period, whether by merger, stock purchase or sale, or asset purchase or sale, the acquisition or disposition or any related repayment of Debt had occurred as of the first day of the period with the appropriate adjustments with respect to the acquisition or disposition being included in the pro forma calculation.
 
  •  The Subordinated Indenture does not limit the incurrence of Debt.

      The following terms used in the covenants summarized above have the indicated meanings:

      “Acquired Debt” means Debt of a person (i) existing at the time the person becomes a subsidiary or (ii) assumed in connection with the acquisition of assets from the person, in each case, other than Debt incurred in connection with, or in contemplation of, the person becoming a subsidiary or the acquisition. Acquired Debt will be deemed to be incurred on the date of the related acquisition of assets from any person or the date the acquired person becomes a subsidiary.

      “Annual Service Charge” as of any date means the maximum amount that is payable in any period for interest on, and original issue discount of, our Debt and the amount of dividends that are payable in respect of any Disqualified Stock (as defined below).

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      “Capital Stock” means, with respect to any person, any capital stock, including preferred stock, shares, interests, participations or other ownership interests, however designated, of the person and any rights (other than debt securities convertible into or exchangeable for corporate stock), warrants or options to purchase any capital stock.

      “Consolidated Income Available for Debt Service” for any period means Funds From Operations (as defined below) plus amounts that have been deducted for interest on Debt.

      “Debt” of United Dominion or any subsidiary means any indebtedness of United Dominion, or any subsidiary, whether or not contingent, in respect of, without duplication:

  •  borrowed money or evidenced by bonds, notes, debentures or similar instruments,
 
  •  indebtedness secured by any mortgage, pledge, lien, charge, encumbrance or any security interest existing on property owned by United Dominion or any subsidiary,
 
  •  the reimbursement obligations, contingent or otherwise, in connection with any letters of credit actually issued or amounts representing the balance deferred and unpaid of the purchase price of any property or services, except any balance that constitutes an accrued expense or trade payable, or all conditional sale obligations or obligations under any title retention agreement,
 
  •  the principal amount of all obligations of United Dominion or any subsidiary with respect to redemption, repayment or other repurchase of any Disqualified Stock, or
 
  •  any lease of property by United Dominion or any subsidiary as lessee that is reflected on United Dominion’s consolidated balance sheet as a capitalized lease in accordance with generally accepted accounting principles to the extent, in the case of items of indebtedness under the first three bullet points above, that any of the items, other than letters of credit, would appear as a liability on United Dominion’s consolidated balance sheet in accordance with generally accepted accounting principles, and also includes, to the extent not otherwise included, any obligation of United Dominion or any subsidiary to be liable for, or to pay, as obligor, guarantor or otherwise, other than for purposes of collection in the ordinary course of business, debt of another person, other than United Dominion or any subsidiary.

Debt will be deemed to be incurred by us or any subsidiary whenever we or a subsidiary creates, assumes, guarantees or otherwise becomes liable for that Debt.

      “Disqualified Stock” means, with respect to any person, any capital stock of the person that by the terms of the capital stock, or by the terms of any security into which it is convertible or for which it is exchangeable or exercisable, upon the happening of any event or otherwise:

  •  matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise,
 
  •  is convertible into or exchangeable or exercisable for Debt or Disqualified Stock, or
 
  •  is redeemable at the option of the holder thereof, in whole or in part, in each case on or prior to the Stated Maturity of the series of debt securities.

      “Funds From Operations” for any period means income before gains or losses on investments and extraordinary items plus amounts that have been deducted, and minus amounts that have been added, for the following items, without duplication:

  •  provision for preferred stock dividends,
 
  •  provision for property depreciation and amortization, and
 
  •  the effect of any adjustments for significant non-recurring items, including any noncash charge resulting from a change in accounting principles in determining income before gains or losses on investments and extraordinary items for the period, as reflected in our financial statements for the period determined on a consolidated basis in accordance with generally accepted accounting principles.

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      “Total Assets” as of any date means the sum of:

  •  our Undepreciated Real Estate Assets, and
 
  •  all of our other assets determined in accordance with generally accepted accounting principles, but excluding intangibles.

      “Undepreciated Real Estate Assets” as of any date means the original cost plus capital improvements of our real estate assets on the date, before depreciation and amortization determined on a consolidated basis in accordance with generally accepted accounting principles.

      Except as described above, the indentures do not contain any provisions that would limit our ability to incur indebtedness or that would afford holders of the debt securities protection in the event of a highly leveraged or similar transaction involving us or in the event of a change of control. However, our amended and restated articles of incorporation contain ownership and transfer restrictions relating to our stock that are designed primarily to preserve our status as a REIT. The Internal Revenue Code generally provides that concentration of more than 50% in value of direct or indirect ownership of our stock in five or fewer individual stockholders during the last six months of any year, or ownership of our stock by fewer than 100 persons on more than a limited number of days during any taxable year, will result in our disqualification as a REIT. Provisions of our amended and restated articles of incorporation that are intended to prevent concentration of ownership may prevent or hinder a change of control. You should refer to the applicable prospectus supplement for information with respect to any deletions from, modifications of or additions to the events of default or covenants of United Dominion that are described in this section, including any addition of a covenant or other provision providing event risk or similar protection.

Covenants Applicable to All Debt Securities

      Existence. Except as described above under “Merger, Consolidation or Sale,” we will do or cause to be done all things necessary to preserve and keep in full force and effect our existence, rights, both under our amended and restated articles of incorporation and statutory, and franchises. However, we will not be required to preserve any right or franchise if we determine that its preservation is no longer desirable in the conduct of our business as a whole and that the loss thereof is not disadvantageous in any material respect to the holders of the debt securities of any series.

      Maintenance of Properties. We will cause all of our properties used or useful in the conduct of our business or the business of any subsidiary to be maintained and kept in good condition, repair and working order and supplied with all necessary equipment and will cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof, all as in our judgment may be necessary so that our business may be properly and advantageously conducted at all times. However, we will not be prevented from selling or otherwise disposing of for value our properties in the ordinary course of business.

      Insurance. We will, and will cause each of our subsidiaries to, keep all of our insurable properties insured against loss or damage in an amount at least equal to their then full insurable value with financially sound and reputable insurance companies.

      Payment of Taxes and Other Claims. We will pay or discharge or cause to be paid or discharged, before the same will become delinquent:

  •  all taxes, assessments and governmental charges levied or imposed upon us or any subsidiary or upon our or any subsidiary’s income, profits or property; and
 
  •  all lawful claims for labor, materials and supplies that, if unpaid, might by law become a lien upon our or any subsidiary’s property.

However, we will not be required to pay or discharge or cause to be paid or discharged any tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings.

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      Provision of Financial Information. Whether or not we are subject to Sections 13 or 15(d) of the Exchange Act, we will, to the extent permitted under the Exchange Act, file with the SEC the annual reports, quarterly reports and other documents that we would have been required to file with the SEC pursuant to Sections 13 and 15(d). We will also in any event:

  •  within 15 days of each required filing date

  •  transmit by mail to all holders of debt securities, as their names and addresses appear in the security register, without cost to the holders, copies of the annual reports and quarterly reports that we would have been required to file with the SEC pursuant to Sections 13 or 15(d) of the Exchange Act if we were subject to those Sections, and
 
  •  file with the trustee copies of the annual reports, quarterly reports and other documents that we would have been required to file with the SEC pursuant to Sections 13 or 15(d) of the Exchange Act if we were subject to those Sections, and

  •  if our filing the documents with the SEC is not permitted under the Exchange Act, promptly upon written request and payment of the reasonable cost of duplication and delivery, supply copies of the documents to any prospective holder.

Events of Default, Notice and Waiver

      Each indenture provides that the following events are “events of default” with respect to any issued series of debt securities:

  •  default for 30 days in the payment of any installment of interest or additional amounts payable on any debt security of the series,
 
  •  default in the payment of the principal of, or any premium or make-whole amount on any debt security of the series at its maturity,
 
  •  default in making any sinking fund payment as required for any debt security of the series,
 
  •  default in the performance of any other covenant of United Dominion contained in the indenture, other than a covenant added to the indenture solely for the benefit of a series of debt securities issued under the indenture other than the series, continued for 60 days after written notice as provided in the indenture,
 
  •  default under any bond, debenture, note, mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any indebtedness for money borrowed by us, or by any subsidiary, the repayment of which we have guaranteed or for which we are directly responsible or liable as obligor or guarantor, having an aggregate principal amount outstanding of at least $10,000,000, whether the indebtedness now exists or will later be created, which default will have resulted in the indebtedness being declared due and payable prior to the date on which it would otherwise have become due and payable, without the acceleration having been rescinded or annulled within 10 days after written notice as provided in the indenture,
 
  •  the entry by a court of competent jurisdiction of one or more judgments, orders or decrees against us or any subsidiary in an aggregate amount, excluding amounts covered by insurance, in excess of $10,000,000 and those judgments, orders or decrees remain undischarged, unstayed and unsatisfied in an aggregate amount, excluding amounts covered by insurance, in excess of $10,000,000 for a period of 30 consecutive days,
 
  •  certain events of bankruptcy, insolvency or reorganization, or court appointment of a receiver, liquidator or trustee of United Dominion or any significant subsidiary or for all or substantially all of either of their properties, and
 
  •  any other event of default provided with respect to the series of debt securities.

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      The term “significant subsidiary” means each significant subsidiary, as defined in Regulation S-X promulgated under the Securities Act, of United Dominion.

      If an event of default under either indenture with respect to debt securities of any series at the time outstanding occurs and is continuing, then in every case the trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may declare the principal amount, or, if the debt securities of that series are original issue discount securities or indexed securities, the portion of the principal amount as may be specified in their terms, of, and any make-whole amount on, all of the debt securities of that series to be due and payable immediately by written notice to us, and to the trustee if given by the holders. However, at any time after the declaration of acceleration with respect to debt securities of the series, or of all debt securities then outstanding under the applicable indenture, as the case may be, has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of not less than a majority in principal amount of the outstanding debt securities of the series, or of all debt securities then outstanding under the applicable indenture, as the case may be, may rescind and annul the declaration and its consequences if:

  •  we will have deposited with the trustee all required payments of the principal of and any premium or make-whole amount and interest, and any additional amounts, on the debt securities of the series, or of all debt securities then outstanding under the applicable indenture, as the case may be, plus certain fees, expenses, disbursements and advances of the trustee, and
 
  •  all events of default, other than the nonpayment of accelerated principal, or specified portion thereof and any premium or make-whole amount, or interest, with respect to the debt securities of the series, or of all debt securities then outstanding under the applicable indenture, as the case may be, have been cured or waived as provided in the indenture.

      Each indenture also provides that the holders of not less than a majority in principal amount of the outstanding debt securities of any series, or of all debt securities then outstanding under the applicable indenture, as the case may be, may waive any past default with respect to the series and its consequences, except a default:

  •  in the payment of the principal of, or any premium or make-whole amount, or interest or additional amounts payable on any debt security of the series, or
 
  •  in respect of a covenant or provision contained in the applicable indenture that cannot be modified or amended without the consent of the holder of each affected outstanding debt security.

      Each trustee is required to give notice to the holders of debt securities within 90 days of a default under the applicable indenture. However, the trustee may withhold notice to the holders of any series of debt securities of any default with respect to that series, except a default in the payment of the principal of, or any premium or make-whole amount, or interest or additional amounts payable, on any debt security of the series or in the payment of any sinking fund installment in respect of any debt security of the series, if the trustee considers the withholding to be in the interest of the holders.

      Each indenture provides that no holders of debt securities of any series may institute any proceedings, judicial or otherwise, with respect to the indenture or for any remedy thereunder, except in the case of failure of the trustee for 60 days to act after it has received a written request to institute proceedings in respect of an event of default from the holders of not less than 25% in principal amount of the outstanding debt securities of the series, as well as an offer of reasonable indemnity. This provision will not prevent, however, any holder of debt securities from instituting suit for the enforcement of payment of the principal of, and any premium or make-whole amount, interest on and additional amounts payable with respect to, the debt securities at their respective due dates.

Modification of the Indentures

      We and the applicable trustee may modify and amend either indenture with the consent of the holders of not less than a majority in principal amount of all outstanding debt securities issued under the

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indenture affected by the modification or amendment. However, we must have the consent of the holders of all affected outstanding debt securities to:

  •  change the stated maturity of the principal of, or any premium or make-whole amount, or any installment of principal of or interest or additional amounts payable on, any debt security,
 
  •  reduce the principal amount of, or the rate or amount of interest on, or any premium or make-whole amount payable on redemption of, or any additional amounts payable with respect to, any debt security, or reduce the amount of principal of an original issue discount security or make-whole amount, if any, that would be due and payable upon declaration of acceleration of its maturity or would be provable in bankruptcy, or adversely affect any right of repayment of the holder of any debt security,
 
  •  change the place of payment, or the coin or currency, for payment of principal of, and any premium or make-whole amount, or interest on, or any additional amounts payable with respect to, a debt security,
 
  •  impair the right to institute suit for the enforcement of any payment on or with respect to any debt security,
 
  •  reduce the percentage of outstanding debt securities of any series necessary to modify or amend the applicable indenture, to waive compliance with any provisions of that indenture or any defaults and consequences thereunder or to reduce the quorum or voting requirements set forth in the indenture, or
 
  •  modify any of the foregoing provisions or any of the provisions relating to the waiver of certain past defaults or certain covenants, except to increase the required percentage to effect the action or to provide that certain other provisions may not be modified or waived without the consent of the holder of the debt security.

      The holders of not less than a majority in principal amount of outstanding debt securities issued under either indenture have the right to waive our compliance with some covenants in the indenture.

Subordination

      Upon any distribution to our creditors in a liquidation, dissolution, reorganization or similar proceeding, the payment of the principal of and interest on the subordinated debt securities will be subordinated to the extent provided in the Subordinated Indenture in right of payment to the prior payment in full of all senior debt. Our obligation to make payment of the principal and interest on the subordinated debt securities will not otherwise be affected.

      No payment of principal or interest may be made on the subordinated debt securities at any time if a default on senior debt exists that permits the holders of the senior debt to accelerate its maturity and the default is the subject of judicial proceedings or we receive notice of the default. After all senior debt is paid in full and until the subordinated debt securities are paid in full, holders will be subrogated to the rights of holders of senior debt to the extent that distributions otherwise payable to holders have been applied to the payment of senior debt. By reason of this subordination, in the event of a distribution of assets upon insolvency, certain of our general creditors may recover more, ratably, than holders of the subordinated debt securities.

      Senior debt is defined in the Subordinated Indenture as the principal of and interest on, or substantially similar payments to be made by United Dominion in respect of, the following, whether outstanding at the date of execution of the Subordinated Indenture or thereafter incurred, created or assumed:

  •  our indebtedness for money borrowed or represented by purchase-money obligations,
 
  •  our indebtedness evidenced by notes, debentures, or bonds, or other securities issued under the provisions of an indenture, fiscal agency agreement or other instrument,

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  •  our obligations as lessee under leases of property either made as part of any sale and lease-back transaction to which we are a party or otherwise,
 
  •  indebtedness of partnerships and joint ventures that is included in our consolidated financial statements,
 
  •  indebtedness, obligations and liabilities of others in respect of which we are liable contingently or otherwise to pay or advance money or property or as guarantor, endorser or otherwise or which we have agreed to purchase or otherwise acquire, and
 
  •  any binding commitment of us to fund any real estate investment or to fund any investment in any entity making a real estate investment, in each case other than the following:

  •  any indebtedness, obligation or liability referred to in the above bullet points as to which, in the instrument creating or evidencing the same pursuant to which the same is outstanding, it is provided that the indebtedness, obligation or liability is not superior in right of payment to the subordinated debt securities or ranks pari passu with the subordinated debt securities,
 
  •  any indebtedness, obligation or liability that is subordinated to indebtedness of United Dominion to substantially the same extent as or to a greater extent than the subordinated debt securities are subordinated, and
 
  •  the subordinated debt securities.

At March 31, 2004, our senior unsecured debt aggregated approximately $1.2 billion.

Discharge, Defeasance and Covenant Defeasance

      Under each indenture, we may discharge certain obligations to holders of any series of debt securities issued under an indenture that have not already been delivered to the applicable trustee for cancellation and that either have become due and payable or will become due and payable within one year, or scheduled for redemption within one year, by irrevocably depositing with the applicable trustee, in trust, funds in the currency or currencies, currency unit or units or composite currency or currencies in which the debt securities are payable in an amount sufficient to pay the entire indebtedness on the debt securities in respect of principal, and any premium or make-whole amount, and interest and any additional amounts payable to the date of the deposit, if the debt securities have become due and payable, or to the stated maturity or redemption date, as the case may be.

      Each indenture provides that, if the provisions of its Article Fourteen are made applicable to the debt securities of or within any series pursuant the indenture, we may elect:

  •  “defeasance,” which is to defease and be discharged from any and all obligations with respect to the debt securities, except for the obligation to pay additional amounts, if any, upon the occurrence of certain events of tax, assessment or governmental charge with respect to payments on the debt securities and the obligations to register the transfer or exchange of the debt securities, to replace temporary or mutilated, destroyed, lost or stolen debt securities, to maintain an office or agency in respect of the debt securities and to hold moneys for payment in trust, or
 
  •  “covenant defeasance,” which is to be released from our obligations with respect to the debt securities under provisions of each indenture described under “Covenants Applicable to Our Senior Debt Securities” and “Covenants Applicable to All Debt Securities” above, or, if provided pursuant to Section 301 of each indenture, our obligations with respect to any other covenant, and any omission to comply with the obligations will not constitute a default or an event or default with respect to the debt securities.

In either case upon our irrevocable deposit with the applicable trustee, in trust, of an amount, in the currency or currencies, currency unit or currency units or composite currency or currencies in which the debt securities are payable at stated maturity, or Government Obligations (as defined below), or both, applicable to the debt securities that through the scheduled payment of principal and interest in

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accordance with their terms will provide money in an amount sufficient to pay the principal of, and any premium or make-whole amount, and interest on the debt securities, and any mandatory sinking fund or analogous payments thereon, on the scheduled due dates therefor.

      Such a trust may only be established if, among other things, we have delivered to the applicable trustee an opinion of counsel, as specified in each indenture, to the effect that the holders of the debt securities will not recognize income, gain or loss for U.S. federal income tax purposes as a result of the defeasance or covenant defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if the defeasance or covenant defeasance had not occurred. In the case of defeasance, the opinion of counsel must refer to and be based upon a ruling of the Internal Revenue Service or a change in applicable U.S. federal income tax laws occurring after the date of the indenture.

      “Government Obligations” means securities that are:

  •  direct obligations of the United States of America or the government that issued the foreign currency in which the debt securities of a particular series are payable, for the payment of which its full faith and credit is pledged, or
 
  •  obligations of a person controlled or supervised by and acting as an agency or instrumentality of the United States of America or the government that issued the foreign currency in which the debt securities of the series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America or any other government, which, in either case, are not callable or redeemable at the option of the issuer, and will also include a depository receipt issued by a bank or trust company as custodian with respect to any Government Obligation or a specific payment of interest on or principal of any Government Obligation held by the custodian for the account of the holder of a depository receipt, provided that, except as required by law, the custodian is not authorized to make any deduction from the amount payable to the holder of the depository receipt from any amount received by the custodian in respect of the Government Obligation or the specific payment of interest on or principal of the Government Obligation evidenced by the depository receipt.

      Unless otherwise provided in the prospectus supplement, if after we have deposited funds and/or Government Obligations to effect defeasance or covenant defeasance with respect to debt securities of any series:

  •  the holder of a debt security of the series is entitled to, and does, elect pursuant to Section 301 of the indenture or the terms of the debt security to receive payment in a currency, currency unit or composite currency other than that in which the deposit has been made in respect of the debt security, or
 
  •  a Conversion Event (as defined below) occurs in respect of the currency, currency unit or composite currency in which the deposit has been made, the indebtedness represented by the debt security will be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of, and any premium or make-whole amount, and interest on the debt security as they become due out of the proceeds yielded by converting the amount deposited in respect of the debt security into the currency, currency unit or composite currency in which the debt security becomes payable as a result of the election or cessation of usage based on the applicable market exchange rate.

      “Conversion Event” means the cessation of use of:

  •  a currency, currency unit or composite currency, other than the ECU or other currency unit, both by the government of the country that issued the currency and for the settlement of transactions by a central bank or other public institutions of or within the international banking community,
 
  •  the ECU both within the European Monetary System and for the settlement of transactions by public institutions of or within the European Communities, or

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  •  any currency unit or composite currency other than the ECU for the purposes for which it was established.

      Unless otherwise provided in the prospectus supplement, all payments of principal of, and any premium or make-whole amount, and interest on any debt security that is payable in a foreign currency that ceases to be used by its government of issuance will be made in United States dollars.

      If we effect covenant defeasance with respect to any debt securities and those debt securities are declared due and payable because of the occurrence of any event of default, the amount in the currency, currency unit or composite currency in which the debt securities are payable, and Government Obligations on deposit with the trustee, will be sufficient to pay amounts due on the debt securities at the time of their stated maturity but may not be sufficient to pay amounts due on the debt securities at the time of the acceleration resulting from the event of default. This situation will not apply in the case of an event of default described in the fourth bullet point under “Events of Default, Notice and Waiver” of either indenture, which sections would no longer be applicable to the debt securities or described in the last bullet point under “Events of Default, Notice and Waiver” with respect to a covenant as to which there has been covenant defeasance. However, we would remain liable to make payment of the amounts due at the time of acceleration.

      The prospectus supplement may further describe the provisions, if any, permitting defeasance or covenant defeasance, including any modifications to the provisions described above, with respect to the debt securities of or within a particular series.

Conversion Rights

      The terms and conditions, if any, upon which the debt securities are convertible into our capital stock will be set forth in the applicable prospectus supplement. The terms will include:

  •  whether the debt securities are convertible into capital stock,
 
  •  the conversion price, or its manner of calculation,
 
  •  the conversion period,
 
  •  provisions as to whether conversion will be at the option of the holders or United Dominion,
 
  •  the events requiring an adjustment of the conversion price, and
 
  •  provisions affecting conversion in the event of the redemption of the debt securities.

Book-Entry System

      We may issue the debt securities of a series as one or more fully registered global securities. We will deposit the global securities with, or on behalf of, a depository bank identified in the prospectus supplement relating to the series. We will register the global securities in the name of the depository bank or its nominee. In that case, one or more global securities will be issued in a denomination or aggregate denominations equal to the aggregate principal amount of outstanding debt securities of the series represented by the global security or securities. Until any global security is exchanged in whole or in part for debt securities in definitive certificated form, the depository bank or its nominee may not transfer the global certificate except to each other, another nominee or to their successors and except as described in the applicable prospectus supplement.

      The prospectus supplement will describe the specific terms of the depository arrangement with respect to a series of debt securities that a global security will represent. We anticipate that the following provisions will apply to all depository arrangements.

      Upon the issuance of any global security, and the deposit of the global security with or on behalf of the depository bank for the global security, the depository bank will credit, on its book-entry registration and transfer system, the respective principal amounts of the debt securities represented by the global

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security to the accounts of institutions, also referred to as “participants,” that have accounts with the depository bank or its nominee. The accounts to be credited will be designated by the underwriters or agents engaging in the distribution or placement of the debt securities or by us, if we offer and sell the debt securities directly. Ownership of beneficial interests in the global security will be limited to participants or persons that may hold interests through participants.

      Ownership of beneficial interests by participants in the global security will be shown by book-keeping entries on, and the transfer of that ownership interest will be effected only through book-keeping entries to, records maintained by the depository bank or its nominee for the global security. Ownership of beneficial interests in the global security by persons that hold through participants will be shown by book-keeping entries on, and the transfer of that ownership interest among or through the participants will be effected only through book-keeping entries to, records maintained by the participants.

      The laws of some jurisdictions require that some of the purchasers of securities take physical delivery of the securities in definitive certificated form rather than book-entry form. Such laws may impair the ability to own, transfer or pledge beneficial interests in any global security.

      So long as the depository bank for a global security or its nominee is the registered owner of the global security, the depository bank or the nominee, as the case may be, will be considered the sole owner or holder of the debt securities represented by the global security for all purposes under the indenture. Except as described below or otherwise specified in the applicable prospectus supplement, owners of beneficial interests in a global security:

  •  will not be entitled to have debt securities of the series represented by the global security registered in their names,
 
  •  will not receive or be entitled to receive physical delivery of debt securities of the series in definitive certificated form, and
 
  •  will not be considered the holders thereof for any purposes under the indenture.

      Accordingly, each person owning a beneficial interest in the global security must rely on the procedures of the depository bank and, if the person is not a participant, on the procedures of the participant through which the person directly or indirectly owns its interest, to exercise any rights of a holder under the indenture. The indenture provides that the depository bank may grant proxies and otherwise authorize participants to give or take any request, demand, authorization, direction, notice, consent, waiver or other action that a holder is entitled to give or take under the indenture.

      We understand that under existing industry practices, if we request any action of holders or any owner of a beneficial interest in the global security desires to give any notice or take any action that a holder is entitled to give or take under the indenture, the depository bank for the global security would authorize the participants holding the relevant beneficial interest to give notice or take action, and the participants would authorize beneficial owners owning through the participants to give notice or take action or would otherwise act upon the instructions of beneficial owners owning through them.

      Principal and any premium and interest payments on debt securities represented by a global security registered in the name of a depository bank or its nominee will be made to the depository bank or its nominee, as the case may be, as the registered owner of the global security. None of us, the trustee or any paying agent for the debt securities will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests in any global security or for maintaining, supervising or reviewing any records relating to the beneficial ownership interests.

      We expect that the depository bank for any series of debt securities represented by a global security, upon receipt of any payment of principal, premium or interest, will credit immediately participants’ accounts with payments in amounts proportionate to their respective beneficial interests in the principal amount of the global security as shown on the records of the depository bank. We also expect that payments by participants to owners of beneficial interests in the global security or securities held through the participants will be governed by standing instructions and customary practices, as is now the case with

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securities held for the accounts of customers registered in “street name,” and will be the responsibility of the participants.

      If the depository bank for any series of debt securities represented by a global security is at any time unwilling or unable to continue as depository bank and we do not appoint a successor depository bank within 90 days, we will issue the debt securities in definitive certificated form in exchange for the global security. In addition, we may at any time and in our sole discretion determine not to have the debt securities of a series represented by one or more global securities and, in that event, will issue debt securities of the series in definitive certificated form in exchange for the global security representing the series of debt securities.

      Debt securities of the series issued in definitive certificated form will, except as described in the applicable prospectus supplement, be issued in denominations of $1,000 and integral multiples thereof and will be issued in registered form.

Trustees

      Wachovia Bank, National Association is the trustee under the Senior Indenture. SunTrust Bank is the trustee under the Subordinated Indenture. Both Wachovia Bank and SunTrust Bank have lending relationships with us.

DESCRIPTION OF PREFERRED STOCK

      The following description sets forth general terms and provisions of our preferred stock. Specific terms of any series of preferred stock offered by a prospectus supplement will be described in that prospectus supplement. You should review our amended and restated articles of incorporation for a more complete description of the preferences, limitations and relative rights of a particular series of preferred stock.

General

      We are authorized to issue 25,000,000 shares of preferred stock, no par value. The preferred stock is issuable in series designated by our Board of Directors, without further stockholder action and pursuant to our amended and restated articles of incorporation, with the designations, preferences, terms, rights, restrictions, limitations, qualifications, terms and conditions of redemption and other relative rights as the Board of Directors may approve. We currently have four designated series of preferred stock: 8.60% Series B Cumulative Redeemable Preferred Stock, Series C Junior Participating Cumulative Redeemable Preferred Stock, Series D Cumulative Convertible Redeemable Preferred Stock and Series E Cumulative Convertible Preferred Stock. At June 4, 2004, there were outstanding 5,416,009 shares of Series B Preferred Stock, 2,000,000 shares of Series D Preferred Stock and 3,425,217 shares of Series E Preferred Stock. No shares of Series C Preferred Stock have been issued, and we will not issue any shares of Series C Preferred Stock except upon the exercise of rights as described below under “Description of Common Stock — Rights to Purchase Series C Preferred Stock.” We will not issue additional shares of any outstanding series of preferred stock.

      Our preferred stock will have the dividend, liquidation, redemption, conversion and voting rights described below unless otherwise provided in the prospectus supplement relating to a particular series of preferred stock. In an offering of a series of our preferred stock, the prospectus supplement will provide specific terms of the series, including:

  •  the title and liquidation preference per share of the preferred stock and the number of shares offered,
 
  •  the price at which the series will be issued,
 
  •  the dividend rate or method of its calculation, the dates on which dividends will be payable and the dates from which dividends will commence to accumulate,

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  •  any redemption or sinking fund provisions of the series,
 
  •  any conversion provisions of the series, and
 
  •  any additional dividend, liquidation, redemption, sinking fund and other rights, preferences, privileges, limitations and restrictions of the series.

      Our preferred stock will, when issued, be fully paid and nonassessable. Unless otherwise specified in the prospectus supplement relating to a particular series of preferred stock, each series will rank on a parity as to dividends and distributions in the event of a liquidation with each other series of preferred stock and, in all cases, will be senior to the common stock.

Dividend Rights

      Holders of preferred stock of each series will be entitled to receive, when declared by the Board of Directors, dividends at the rates and on the dates as set forth in the prospectus supplement relating to the series of preferred stock. The rate may be fixed or variable or both and may be cumulative, noncumulative or partially cumulative.

      If the prospectus supplement provides, as long as any shares of preferred stock are outstanding, no dividends will be declared or paid or any distributions be made on the common stock unless the accrued dividends on each series of preferred stock have been fully paid or declared and set apart for payment and we will have set apart all amounts, if any, required to be set apart for all sinking funds, if any, for each series of preferred stock.

      If the prospectus supplement so provides, when dividends are not paid in full upon any series of preferred stock and any other series of preferred stock ranking on a parity as to dividends with the series of preferred stock, all dividends declared upon the series of preferred stock and any other series of preferred stock ranking on a parity as to dividends will be declared pro rata so that the amount of dividends declared per share on the series of preferred stock and the other series will in all cases bear to each other the same ratio that accrued dividends per share on the series of preferred stock and the other series bear to each other.

      Each series of preferred stock will be entitled to dividends as described in the prospectus supplement relating to the series, which may be based upon one or more methods of determination. Different series of preferred stock may be entitled to dividends at different dividend rates or based upon different methods of determination. Except as provided in the applicable prospectus supplement, no series of preferred stock will be entitled to participate in our earnings or assets.

Rights Upon Liquidation

      In the event of any voluntary or involuntary liquidation, dissolution or winding up of United Dominion, the holders of each series of preferred stock will be entitled to receive out of our assets available for distribution to stockholders the amount stated or determined on the basis set forth in the prospectus supplement relating to the series. This distribution may include accrued dividends, if the liquidation, dissolution or winding up is involuntary. If the liquidation, dissolution or winding up is voluntary the distribution may equal the current redemption price per share provided for the series set forth in the prospectus supplement, otherwise than for the sinking fund, if any, provided for the series. Any preferential basis for the distribution will be set forth in the prospectus supplement.

      If, upon any voluntary or involuntary liquidation, dissolution or winding up of United Dominion, the amounts payable with respect to preferred stock of any series and any other shares of our stock ranking as to any such distribution on a parity with the series of preferred stock are not paid in full, the holders of preferred stock of the series and of the other shares will share ratably in any distribution of our assets in proportion to the full respective preferential amounts to which they are entitled or on such other basis as is set forth in the applicable prospectus supplement. The rights, if any, of the holders of any series of preferred stock to participate in our remaining assets after the holders of other series of preferred stock

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have been paid their respective specified liquidation preferences upon any liquidation, dissolution or winding up of United Dominion will be described in the prospectus supplement relating to the series.

Redemption

      A series of preferred stock may be redeemable, in whole or in part, at our option, and may be subject to mandatory redemption pursuant to a sinking fund, in each case upon terms, at the times, the redemption prices and for the types of consideration set forth in the prospectus supplement relating to the series. The prospectus supplement relating to a series of preferred stock that is subject to mandatory redemption will specify the number of shares of the series that we will redeem in each year commencing after a specified date at a specified redemption price per share, together with an amount equal to any accrued and unpaid dividends to the date of redemption.

      If, after giving notice of redemption to the holders of a series of preferred stock, we deposit with a designated bank funds sufficient to redeem the preferred stock, then from and after the deposit, all shares called for redemption will no longer be outstanding for any purpose, other than the right to receive the redemption price and the right to convert the shares into other classes of our capital stock. The prospectus supplement will set forth the redemption price relating to a particular series of preferred stock.

      Except as indicated in the applicable prospectus supplement, the preferred stock is not subject to any mandatory redemption at the option of the holder.

Sinking Fund

      The prospectus supplement for any series of preferred stock will state the terms, if any, of a sinking fund for the purchase or redemption of that series.

Conversion Rights

      The prospectus supplement for any series of preferred stock will state the terms, if any, on which shares of that series are convertible into shares of common stock or another series of preferred stock. The preferred stock will have no preemptive rights.

Voting Rights

      The prospectus supplement relating to a particular series of preferred stock will set forth any voting rights applicable to that series.

Transfer Agent and Registrar

      The prospectus supplement will state our selection for the transfer agent, registrar and dividend disbursement agent for a series of preferred stock. The registrar for shares of preferred stock will send notices to preferred stockholders of any meetings at which holders of preferred stock have the right to vote on any matter.

DESCRIPTION OF COMMON STOCK

      The following is a summary of some of the important terms of our common stock. This summary supplements, updates and, to the extent inconsistent with, supersedes the description of our common stock in our Registration Statement on Form 8-A/ A filed with the SEC on July 28, 2000. The following discussion also summarizes some of the terms of our preferred stock, our stockholder rights plan and Maryland law. None of these summaries or descriptions is complete and all of them are qualified by reference to our amended and restated articles of incorporation, bylaws and stockholder rights plan and the applicable provisions of Maryland law. You should review the applicable Maryland law as well as our amended and restated articles of incorporation and bylaws and our stockholder rights plan for a more complete description of our common stock.

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General

      We are authorized to issue 250,000,000 shares of common stock, $1.00 par value per share. As of June 4, 2004, there were 127,890,737 shares of our common stock issued and outstanding and 26,688,443 shares of our common stock reserved for issuance upon exercise of outstanding stock options, convertible preferred stock and operating partnership units exchangeable for our common stock. Our common stock is traded on the New York Stock Exchange under the symbol “UDR.”

      Holders of our common stock have one vote per share and are not entitled to cumulate votes in the election of directors. The holders of our outstanding Series E Cumulative Convertible Preferred Stock are entitled to vote on an “as converted” (one-for-one) basis as a single class in combination with the holders of our common stock at any meeting of stockholders for the election of directors or for any other purpose on which holders of our common stock are entitled to vote. In addition, if we do not pay full cumulative dividends on our outstanding Series D Cumulative Convertible Redeemable Preferred Stock, the holders of the Series D preferred stock shall have all rights to voting entitlements of holders of our common stock, and the Series D preferred stock and common stock shall be a single voting group, until the dividend arrearage is cured. If dividends on our Series B preferred stock are in arrears for six or more consecutive quarterly periods, our board of directors will be increased by two directors and the holders of Series B preferred stock, voting separately as a class with all other series of preferred stock having like voting rights, may vote for the election of two additional directors until the dividend arrearage is cured.

      Holders of our common stock are entitled to receive dividends if, when and as declared by the board of directors out of legally available funds after payment of, or provision for, full cumulative dividends on shares of our preferred stock then outstanding. In the event of our voluntary or involuntary liquidation or dissolution, holders of our common stock are entitled to share ratably in our distributable assets remaining after satisfaction of the prior preferential rights of our preferred stock and the satisfaction of all of our debts and liabilities. Holders of our common stock do not have preemptive rights.

      The dividend and liquidation rights of holders of our common stock are specifically limited by the terms of the outstanding preferred stock, which in general provide that no dividends will be declared or paid on the common stock unless the accrued dividends on each series of outstanding preferred stock have been fully paid or declared and set apart for payment, and that in the event of any liquidation, dissolution or winding up of our company, the holders of each series of outstanding preferred stock will be entitled to receive out of our assets available for distribution to stockholders the liquidation preference of that series before any amount is distributed to common stockholders.

Rights to Purchase Series C Preferred Stock

      Pursuant to our stockholder rights plan, each share of common stock evidences one right to purchase from us one one-thousandth of a share of Series C Junior Participating Cumulative Redeemable Preferred Stock. Except with respect to certain preferential rights, each one one-thousandth of a share of Series C preferred stock is structured to be the equivalent of one share of common stock. The exercise price of the rights is $45.00, subject to adjustment. The rights are not currently exercisable and no shares of Series C preferred stock are currently outstanding.

      The rights will separate from the common stock and a distribution of certificates evidencing the rights will occur upon the earlier of:

  •  10 business days following a public announcement that a person or group of related persons has acquired, or obtained the right to acquire, beneficial ownership of more than 15% of the outstanding shares of common stock, or
 
  •  10 business days following the commencement of a tender offer or exchange offer that would result in a person or group beneficially owning more than 15% of the outstanding shares of common stock.

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      Generally, the rights will become exercisable at the time of the distribution of certificates evidencing the rights as set forth above. The rights will expire at the close of business on February 4, 2008, unless we redeem or exchange them earlier.

      The Series C preferred stock is junior to all other outstanding series of preferred stock in respect of rights to receive dividends and to participate in distributions or payments in the event of our liquidation, dissolution or winding up. The Series C preferred stock is senior to the common stock as to dividends and upon liquidation.

      Holders of shares of the Series C preferred stock will be entitled to receive, if, when and as declared by our board of directors, out of legally available funds, cumulative cash dividends payable quarterly in an amount per share equal to the greater of:

  •  $0.01 or
 
  •  1,000 times the aggregate per share amount of all cash dividends, and 1,000 times the aggregate per share amount, payable in kind, of all non-cash dividends or other distributions, other than dividends payable in shares of common stock, declared on the common stock since the immediately preceding quarterly dividend payment date, or, with respect to the first quarterly dividend payment date, since the first issuance of any share or fraction of a share of Series C preferred stock.

      In the event of any liquidation, dissolution or winding up of United Dominion, the holders of shares of Series C preferred stock are entitled to be paid out of our assets legally available for distribution to our stockholders, subject to the prior preferential rights of our other preferred stock ranking senior to the Series C preferred stock, a liquidation preference of $1,000 per share, plus accrued and unpaid dividends thereon to the date of payment, which is referred to as the “Series C Preferred Liquidation Preference.” After the payment to the holders of the shares of the Series C preferred stock of the full Series C Preferred Liquidation Preference, the holders of the Series C preferred stock as such shall have no right or claim to any of our remaining assets until the holders of common stock shall have received an amount per share, referred to as the “common adjustment,” equal to the quotient obtained by dividing the Series C Preferred Liquidation Preference by 1,000. Following the payment of the full amount of the Series C Preferred Liquidation Preference and the common adjustment, holders of Series C preferred stock and common stock shall be entitled to receive their ratable and proportionate share of our remaining assets to be distributed in the ratio of 1,000 to 1 with respect to the Series C preferred stock and the common stock, respectively. In the event that there are not sufficient assets available after payment in full of the Series C Preferred Liquidation Preference to permit payment in full of the common adjustment, then the remaining assets shall be distributed ratably to the holders of the common stock.

      The outstanding shares of Series C preferred stock may be redeemed at the option of the board of directors as a whole, but not in part, at any time, or from time to time, at a redemption price per share equal to 1,000 times the Average Market Value of the common stock, plus all accrued and unpaid dividends to and including the date fixed for redemption. The “Average Market Value” is the average of the closing sale prices of a share of the common stock during the 30-day period immediately preceding the date before the redemption date quoted on the Composite Tape for New York Stock Exchange Listed Stocks, or, if the common stock is not quoted on the Composite Tape, on the New York Stock Exchange, or, if the common stock is not listed on such exchange, on the principal United States registered securities exchange on which the common stock is listed, or, if the common stock is not listed on any such exchange, the average of the closing bid quotations with respect to a share of common stock during such 30-day period on The Nasdaq Stock Market, or if no such quotations are available, the fair market value of a share of common stock as determined by the board of directors in good faith.

      Each share of Series C preferred stock entitles its holder to 1,000 votes on all matters submitted to a vote of our stockholders. The holders of shares of Series C preferred stock and the holders of shares of common stock vote together as one voting group on all those matters.

      Whenever dividends on any shares of Series C preferred stock are in arrears for six or more consecutive quarterly periods, our entire board of directors will be increased by two directors and the

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holders of Series C preferred stock, voting separately as a class with all other series of preferred stock having like voting rights, may vote for the election of two additional directors of United Dominion until all dividend arrearages have been fully paid.

      The dividend rate on the Series C preferred stock, the common adjustment, the Series C Preferred Redemption Price and the number of votes per share of Series C preferred stock and certain other terms of the Series C preferred stock are all subject to adjustment upon the declaration of any dividend payable in common stock, subdivision of the outstanding common stock or combination of the outstanding shares of common stock into a smaller number of shares.

Dividend Restrictions

      A covenant in our $500 million unsecured revolving credit facility prohibits the payment of dividends and distributions on our common stock in excess of 95% of our “Funds From Operations,” as defined in the credit facility, during any period of four consecutive fiscal quarters. Despite this covenant but except as provided in the following sentence, we may pay dividends required to maintain our qualification as a REIT under the Internal Revenue Code. However, if certain defaults or events of default exist under such facility, this covenant prohibits the payment of dividends and distributions in all circumstances.

Certain Provisions of Maryland Law

      As a Maryland corporation, we are subject to certain restrictions concerning certain “business combinations” (including a merger, consolidation, share exchange or, in certain circumstances, an asset transfer or issuance or reclassification of equity securities) between us and an “interested stockholder.” Interested stockholders are persons: (i) who beneficially own 10% or more of the voting power of our shares, or (ii) who are affiliates or associates of us who, at any time within the two-year period prior to the date in question, were the beneficial owners of 10% or more of the voting power of our shares. Such business combinations are prohibited for five years after the most recent date on which the interested stockholder became an interested stockholder. Thereafter, any such business combination must be recommended by the board of directors and approved by the affirmative vote of at least: (i) 80% of the votes entitled to be cast by holders of the outstanding voting shares voting together as a single group, and (ii) 66 2/3% of the votes entitled to be cast by holders of the outstanding voting shares other than shares held by the interested stockholder or an affiliate or associate of the interested stockholder with whom the business combination is to be effected, unless, among other things, the corporation’s stockholders receive a minimum price for their shares and the consideration is received in cash or in the same form as previously paid by the interested stockholder for its shares. These provisions of Maryland law do not apply, however, to business combinations that are approved or exempted by the board of directors prior to the time that the interested stockholder becomes an interested stockholder.

      Also under Maryland law, “control shares” of a Maryland corporation acquired in a “control share acquisition” have no voting rights except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter. Shares of stock owned by the acquirer, by officers or by directors who are employees of the corporation are excluded from shares entitled to vote on the matter. “Control shares” are shares of stock which, if aggregated with all other shares of stock owned by the acquirer or shares of stock for which the acquirer is able to exercise or direct the exercise of voting power except solely by virtue of a revocable proxy, would entitle the acquirer to exercise voting power in electing directors within one of the following ranges of voting power:

  •  10% or more but less than 33 1/3%,
 
  •  33 1/3% or more but less than a majority, or
 
  •  a majority or more of all voting power.

      Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A “control share acquisition” means, subject to certain

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exceptions, the acquisition of, ownership of or the power to direct the exercise of voting power with respect to, control shares.

      The control share acquisition statute does not apply to shares acquired in a merger, consolidation or share exchange if the corporation is a party to the transaction or to acquisitions approved or exempted by the charter or bylaws of the corporation. Our bylaws contain a provision exempting from the control share acquisition statute any and all acquisitions by any person of shares of our stock.

      Under Title 3, Subtitle 8 of the Maryland General Corporation Law, a Maryland corporation that has a class of equity securities registered under the Securities Exchange Act of 1934 and that has at least three independent directors who are not officers or employees of the corporation, are not acquiring persons or related to an acquiring person or not nominated as a director by an acquiring person, may elect in its charter or bylaws or by resolution of its board of directors to be subject to certain provisions of Subtitle 8 that may have the effect of delaying or preventing a change in control of the corporation. These provisions relate to a classified board of directors, removal of directors, establishing the number of directors, filling vacancies on the board of directors and calling special meetings of the corporation’s stockholders. We have not made the election to be governed by these provisions of Subtitle 8 of the Maryland General Corporation Law. However, our amended and restated articles of incorporation and bylaws permit the board of directors to determine the number of directors subject to a minimum number and other provisions contained in such documents.

Restrictions on Ownership and Transfer

      Our amended and restated articles of incorporation contain ownership and transfer restrictions relating to our stock that are designed primarily to preserve our status as a REIT. These restrictions include but are not limited to the following:

  •  no person may beneficially own or constructively own shares of our outstanding “equity stock” (defined as stock that is either common stock or preferred stock) with a value in excess of 9.9% of the value of all outstanding equity stock unless our board of directors exempts the person from such ownership limitation, provided that any such exemption shall not allow the person to exceed 13% of the value of our outstanding equity stock;
 
  •  any transfer that, if effective, would result in any person beneficially owning or constructively owning equity stock with a value in excess of a 9.9% of the value of all outstanding equity stock (or such higher value not to exceed 13% as determined pursuant to an exemption from our board of directors) shall be void as to the transfer of that number of shares of equity stock which would otherwise be beneficially owned or constructively owned by such person in excess of such ownership limit; and the intended transferee shall acquire no rights in such excess shares of equity stock;
 
  •  except as provided in the amended and restated articles of incorporation, any transfer that, if effective, would result in the equity stock being beneficially owned by fewer than 100 persons shall be void as to the transfer of that number of shares which would be otherwise beneficially owned or constructively owned by the transferee; and the intended transferee shall acquire no rights in such excess shares of equity stock; and
 
  •  any transfer of shares of equity stock that, if effective, would result in us being “closely held” within the meaning of Section 856(h) of the Internal Revenue Code shall be void as to the transfer of that number of shares of equity stock which would cause us to be “closely held” within the meaning of Section 856(h) of the Internal Revenue Code; and the intended transferee shall acquire no rights in such excess shares of equity stock.

Transfer Agent

      The transfer agent for our common stock is Wells Fargo Shareowner Services, 161 North Concord Exchange, South St. Paul, Minnesota 55075.

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U.S. FEDERAL INCOME TAX CONSIDERATIONS

      The following is a summary of the U.S. federal income tax considerations to us as a REIT which may be material to purchasers of our securities. This summary is based on current law, is for general information only and is not tax advice. The tax treatment of a holder of our debt or equity securities will vary depending upon the terms of the specific securities acquired by such holder, as well as the holder’s particular situation. This discussion does not attempt to address any aspects of U.S. federal income taxation relating to holders of our securities. U.S. federal income tax considerations relevant to holders will be addressed in the applicable prospectus supplement for a particular offering of our debt or equity securities. You are urged to review the applicable prospectus supplement in connection with the purchase of any of our securities, and to consult your own tax advisor regarding the specific tax consequences to you of investing in our securities and of our election to be taxed as a REIT.

General

      We elected to be taxed as a REIT under the U.S. federal income tax laws commencing with our taxable year ended December 31, 1972. We believe that we have operated in a manner that permits us to satisfy the requirements for taxation as a REIT under the applicable provisions of the Internal Revenue Code. Qualification and taxation as a REIT depends upon our ability to meet, through actual annual operating results, distribution levels and diversity of stock ownership, the various qualification tests imposed under the Internal Revenue Code discussed below. Although we intend to continue to operate to satisfy such requirements, no assurance can be given that the actual results of our operations for any particular taxable year will satisfy such requirements. See “— Failure to Qualify.”

      The provisions of the Internal Revenue Code, U.S. Treasury regulations promulgated thereunder and other U.S. federal income tax laws relating to qualification and operation as a REIT are highly technical and complex. The following sets forth the material aspects of the laws that govern the U.S. federal income tax treatment of a REIT. This summary is qualified in its entirety by the applicable Internal Revenue Code provisions, rules and U.S. Treasury regulations thereunder, and administrative and judicial interpretations thereof. Further, the anticipated income tax treatment described in this prospectus may be changed, perhaps retroactively, by legislative, administrative or judicial action at any time.

      The law firm of Morrison & Foerster LLP has acted as our tax counsel in connection with the filing of this prospectus. In the opinion of Morrison & Foerster LLP dated June 8, 2004, we have been organized and have operated in conformity with the requirements for qualification and taxation as a REIT under the Internal Revenue Code for each of our taxable years beginning with the taxable year ended December 31, 2000 through our taxable year ended December 31, 2003, and if we continue to be organized and operated after December 31, 2003 in the same manner as we have prior to that date, we will continue to qualify as a REIT. The opinion of Morrison & Foerster LLP dated June 8, 2004, is based on various assumptions and representations made by us as to factual matters, including representations made by us in this prospectus and a factual certificate provided by one of our officers. Moreover, our qualification and taxation as a REIT depends upon our ability to meet the various qualification tests imposed under the Internal Revenue Code and discussed below, relating to our actual annual operating results, asset diversification, distribution levels, and diversity of stock ownership, the results of which have not been and will not be reviewed by Morrison & Foerster LLP. Accordingly, neither Morrison & Foerster LLP nor we can assure you that the actual results of our operations for any particular taxable year will satisfy these requirements. See “— Failure to Qualify.”

      In brief, if certain detailed conditions imposed by the REIT provisions of the Internal Revenue Code are satisfied, entities, such as us, that invest primarily in real estate and that otherwise would be treated for U.S. federal income tax purposes as corporations, are generally not taxed at the corporate level on their “REIT taxable income” that is distributed currently to stockholders. This treatment substantially eliminates the “double taxation” (i.e., taxation at both the corporate and stockholder levels) that generally results from investing in corporations.

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      If we fail to qualify as a REIT in any year, however, we will be subject to U.S. federal income tax as if we were a domestic corporation, and our stockholders will be taxed in the same manner as stockholders of ordinary corporations. In that event, we could be subject to potentially significant tax liabilities, the amount of cash available for distribution to our stockholders could be reduced and we would not be obligated to make any distributions.

Taxation of the Company

      In any year in which we qualify as a REIT, in general, we will not be subject to U.S. federal income tax on that portion of our net income that we distribute to stockholders. However, we will be subject to U.S. federal income tax as follows: First, we will be taxed at regular corporate rates on any undistributed REIT taxable income, including undistributed net capital gains. (However, we can elect to “pass through” any of our taxes paid on our undistributed net capital gains income to our stockholders on a pro rata basis.) Second, under certain circumstances, we may be subject to the “alternative minimum tax” on our items of tax preference. Third, if we have (1) net income from the sale or other disposition of “foreclosure property” which is held primarily for sale to customers in the ordinary course of business or (2) other nonqualifying income from foreclosure property, we will be subject to tax at the highest corporate rate on such income. Fourth, if we have net income from prohibited transactions (which are, in general, certain sales or other dispositions of property held primarily for sale to customers in the ordinary course of business, generally other than property held for at least four years, foreclosure property, and property involuntarily converted), such income will be subject to a 100% penalty tax. Fifth, if we should fail to satisfy the 75% or the 95% tests (as discussed below), and have nonetheless maintained our qualification as a REIT because certain other requirements have been satisfied, we will be subject to a 100% penalty tax on the net income attributable to the greater of either (1) the amount by which 75% of our gross income exceeds the amount of our income qualifying under the 75% test for the taxable year or (2) the amount by which 90% of our gross income exceeds the amount of our income qualifying for the 95% income test for the taxable year, multiplied by a fraction intended to reflect our profitability. Sixth, if we should fail to distribute during each calendar year at least the sum of (1) 85% of our ordinary income for such year, (2) 95% of our net capital gain income for such year, and (3) any undistributed taxable income from prior periods, we will be subject to a 4% excise tax on the excess of such required distribution over the amounts distributed. Seventh, if we acquire any asset from a C corporation (i.e., generally a corporation subject to full corporate-level tax) in a transaction in which the basis of the asset in our hands is determined by reference to the basis of the asset (or any other property) in the hands of the C corporation, and we recognize gain on the disposition of such asset during the 10-year period beginning on the date on which we acquired such asset, then, to the extent of any built-in, unrealized gain at the time of acquisition, such gain generally will be subject to tax at the highest regular corporate rate. Eighth, we may be subject to a penalty tax if our dealings with our taxable REIT subsidiaries (defined below) are not at arm’s length. Finally, as discussed further below, any earnings we derive through a taxable REIT subsidiary will effectively be subject to a corporate level tax.

Requirements for Qualification

      The Internal Revenue Code defines a REIT as a corporation, trust or association (1) which is managed by one or more trustees or directors; (2) the beneficial ownership of which is evidenced by transferable shares, or by transferable certificates of beneficial interest; (3) which would be taxable as a domestic corporation, but for Sections 856 through 860 of the Internal Revenue Code; (4) which is neither a financial institution nor an insurance company subject to certain provisions of the Internal Revenue Code; (5) the beneficial ownership of which is held by 100 or more persons; (6) not more than 50% in value of the outstanding stock of which is owned, directly or indirectly, by five or fewer individuals (as defined in the Internal Revenue Code) at any time during the last half of each taxable year; and (7) which meets certain other tests, described below, regarding the nature of its income and assets. The Internal Revenue Code provides that conditions (1) to (4), inclusive, must be met during the entire taxable year and that condition (5) must be met during at least 335 days of a taxable year of 12 months, or during a proportionate part of a taxable year of less than 12 months. If we were to fail to satisfy

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condition (6) during a taxable year, that failure would not result in our disqualification as a REIT under the Internal Revenue Code for such taxable year as long as (i) we satisfied the stockholder demand statement requirements described in the succeeding paragraph and (ii) we did not know, or exercising reasonable diligence would not have known, whether we had failed condition (6).

      We believe we have issued sufficient stock with sufficient diversity of ownership to satisfy conditions (5) and (6) above. In this connection, our articles of incorporation restrict the transfer of our stock to assist us in continuing to satisfy the REIT stock ownership requirements. See “Description of Common Stock — Restrictions on Ownership and Transfer of Stock.” Moreover, to evidence compliance with these requirements, we must maintain records which disclose the actual ownership of our outstanding common stock and preferred stock. In fulfilling our obligations to maintain records, we must and will demand written statements each year from the record holders of designated percentages of our stock disclosing the actual owners of such stock. A list of those persons failing or refusing to comply with such demand must be maintained as part of our records. A stockholder failing or refusing to comply with our written demand must submit with its U.S. federal income tax returns a similar statement disclosing the actual ownership of stock and certain other information. We report our net income based on the calendar year.

      Although we intend to satisfy the stockholder demand statement requirements described in the preceding paragraph, our failure to satisfy those requirements will not result in our disqualification as a REIT under the Internal Revenue Code but may result in the imposition of Internal Revenue Service penalties against us.

      We currently have several direct corporate subsidiaries and may have additional corporate subsidiaries in the future. Certain of our corporate subsidiaries will be treated as “qualified REIT subsidiaries” under the Internal Revenue Code. A corporation will qualify as a qualified REIT subsidiary if we own 100% of its outstanding stock and we and the subsidiary do not jointly elect to treat it as a “taxable REIT subsidiary” as described below. A corporation that is a qualified REIT subsidiary is not treated as a separate corporation, and all assets, liabilities and items of income, deduction and credit of a qualified REIT subsidiary are treated as assets, liabilities and items of income, deduction and credit (as the case may be) of the parent REIT for all purposes under the Internal Revenue Code (including all REIT qualification tests). Thus, in applying the requirements described in this prospectus the subsidiaries in which we own a 100% interest (other than taxable REIT subsidiaries) will be ignored, and all assets, liabilities and items of income, deduction and credit of such subsidiaries will be treated as our assets, liabilities and items of income, deduction and credit. A qualified REIT subsidiary is not subject to U.S. federal income tax and our ownership of the stock of such a subsidiary will not violate the REIT asset tests, described below under “— Requirements for REIT Qualification — Asset Tests.”

      In the case of a REIT that is a partner in a partnership, U.S. Treasury regulations provide that the REIT will be deemed to own its proportionate share of the assets of the partnership and will be deemed to be entitled to the income of the partnership attributable to such share. In addition, the character of the assets and gross income of a partnership shall retain the same character in the hands of a partner qualifying as a REIT for purposes of the REIT qualification tests under the Internal Revenue Code, including satisfying the gross income tests and the asset tests, described below. Thus, our proportionate share of the assets, liabilities and items of income of a partnership in which we own an interest, directly or indirectly, will be treated as our assets, liabilities and items of income for purposes of applying the requirements described below.

     Asset Tests

      At the close of each quarter of our taxable year, we generally must satisfy three tests relating to the nature of our assets. First, at least 75% of the value of our total assets must be represented by interests in real property, interests in mortgages on real property, shares in other REITs, cash, cash items and government securities (as well as certain temporary investments in stock or debt instruments purchased with the proceeds of new capital raised by us). Second, although the remaining 25% of our assets generally may be invested without restriction, securities in this class generally may not exceed either (1) 5% of the

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value of our total assets as to any one nongovernment issuer, (2) 10% of the outstanding voting securities of any one issuer, or (3) 10% of the value of the outstanding securities of any one issuer. Third, not more than 20% of the total value of our assets can be represented by securities of one or more “taxable REIT subsidiaries” (described below). In general, securities for purposes of the asset tests may include debt securities, including debt issued by a partnership. However, debt of an issuer will not count as a security for purposes of the 10% value test if the security is “straight debt,” as specially defined for this purpose, and certain other requirements are satisfied.

      We and a corporation in which we own stock may make a joint election for such subsidiary to be treated as a “taxable REIT subsidiary.” The securities of a taxable REIT subsidiary are not subject to the 5% asset test and the 10% vote and value tests described above. Instead, as discussed above, a separate asset test applies to taxable REIT subsidiaries. The rules regarding taxable REIT subsidiaries contain provisions generally intended to insure that transactions between a REIT and its taxable REIT subsidiary occur “at arm’s length” and on commercially reasonable terms. These requirements include a provision that prevents a taxable REIT subsidiary from deducting interest on direct or indirect indebtedness to its parent REIT if, under a specified series of tests, the taxable REIT subsidiary is considered to have an excessive interest expense level or debt-to-equity ratio. A taxable REIT subsidiary is subject to a corporate level tax on its net taxable income, as a result of which our earnings derived through a taxable REIT subsidiary are effectively subject to a corporate level tax notwithstanding our status as a REIT. In addition, in some cases, a 100% penalty tax is imposed on the REIT if its rental, service or other agreements with its taxable REIT subsidiary are determined not to be on arm’s length terms.

      We have made elections to treat several of our corporate subsidiaries as taxable REIT subsidiaries. We believe that the value of the securities we hold of our taxable REIT subsidiaries does not and will not represent more than 20% of our total assets, and that all transactions between us and our taxable REIT subsidiaries are conducted on arm’s length terms. In addition, we believe that the amount of our assets that are not qualifying assets for purposes of the 75% asset test will continue to represent less than 25% of our total assets and will satisfy the 5% and both 10% asset tests.

     Gross Income Tests

      We must satisfy two separate percentage tests relating to the sources of our gross income for each taxable year. For purposes of these tests, where we invest in a partnership, we will be treated as receiving our share of the income and loss of the partnership, and the gross income of the partnership will retain the same character in our hands as it has in the hands of the partnership. See “— Tax Aspects of Our Investment in Partnerships — General.”

      The 75% Test. At least 75% of our gross income for a taxable year must be “qualifying income.” Qualifying income generally includes (1) rents from real property (except as modified below); (2) interest on obligations collateralized by mortgages on, or interests in, real property; (3) gains from the sale or other disposition of interests in real property and real estate mortgages, other than gain from property held primarily for sale to customers in the ordinary course of our trade or business (“dealer property”); (4) dividends or other distributions on shares in other REITs, as well as gain from the sale of such shares; (5) abatements and refunds of real property taxes; (6) income from the operation, and gain from the sale, of property acquired at or in lieu of a foreclosure of the mortgage collateralized by such property (“foreclosure property”); (7) commitment fees received for agreeing to make loans collateralized by mortgages on real property or to purchase or lease real property; and (8) income from temporary investments in stock or debt instruments purchased with the proceeds of new capital raised by us.

      Rents received from a tenant will not, however, qualify as rents from real property in satisfying the 75% test (or the 95% test described below) if we, or an owner of 10% or more of our equity securities, directly or constructively owns 10% or more of such tenant (a “related party tenant”), unless the related party tenant is a taxable REIT subsidiary and certain other requirements are satisfied. In addition, if rent attributable to personal property, leased in connection with a lease of real property, is greater than 15% of the total rent received under the lease, then the portion of rent attributable to such personal property will

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not qualify as rents from real property. Moreover, an amount received or accrued generally will not qualify as rents from real property (or as interest income) for purposes of the 75% test and 95% test (described below) if it is based in whole or in part on the income or profits of any person. Rent or interest will not be disqualified, however, solely by reason of being based on a fixed percentage or percentages of receipts or sales. Finally, for rents received to qualify as rents from real property, we generally must not operate or manage the property or furnish or render services to tenants, other than through an “independent contractor” from whom we derive no revenue or through a taxable REIT subsidiary. The “independent contractor” or taxable REIT subsidiary requirement, however, does not apply to the extent that the services provided by us are “usually or customarily rendered” in connection with the rental of space for occupancy only, and are not otherwise considered “rendered to the occupant.” For both the related party tenant rules and determining whether an entity qualifies as an independent contractor of a REIT, certain attribution rules of the Internal Revenue Code apply, pursuant to which ownership interests in certain entities held by one entity are deemed held by certain other related entities.

      In general, if a REIT provides impermissible services to its tenants, all of the rent from that property will be disqualified from satisfying the 75% test and 95% test (described below). However, rents will not be disqualified if a REIT provides de minimis impermissible services. For this purpose, services provided to tenants of a property are considered de minimis where income derived from the services rendered equals 1% or less of all income derived from the property (as determined on a property-by-property basis). For purposes of the 1% threshold, the amount treated as received for any service shall not be less than 150% of the direct cost incurred by the REIT in furnishing or rendering the service.

      We do not receive any rent that is based on the income or profits of any person. In addition, we do not own, directly or indirectly, 10% or more of any tenant (other than, perhaps, a tenant that is a taxable REIT subsidiary where other requirements are satisfied). Furthermore, we believe that any personal property rented in connection with our apartment facilities is well within the 15% limit. Finally, we do not provide services, other than within the 1% de minimis exception described above, to our tenants that are not customarily furnished or rendered in connection with the rental of property, other than through an independent contractor or a taxable REIT subsidiary.

      The 95% Test. In addition to deriving 75% of our gross income from the sources listed above, at least 95% of our gross income for a taxable year must be derived from the above-described qualifying income, or from dividends, interest or gains from the sale or disposition of stock or other securities that are not dealer property. Dividends from a corporation (including a taxable REIT subsidiary) and interest on any obligation not collateralized by an interest on real property are included for purposes of the 95% test, but not (except with respect to dividends from a REIT) for purposes of the 75% test. For purposes of determining whether we comply with the 75% and 95% tests, gross income does not include income from “prohibited transactions” (discussed below).

      From time to time, we may enter into hedging transactions with respect to one or more of our assets or liabilities. Our hedging activities may include entering into interest rate swaps, caps and floors, or options to purchase such items, and futures and forward contracts. To the extent we enter into an interest rate swap or cap contract, option, futures contract, forward rate agreement or any similar financial instrument to hedge our indebtedness incurred to acquire or carry “real estate assets,” any periodic income or gain from the disposition of such contract should be qualifying income for purposes of the 95% gross income test, but not the 75% gross income test. To the extent that we hedge with other types of financial instruments, or in other situations, it is not entirely clear how the income from those transactions will be treated for purposes of the gross income tests. We intend to structure any hedging transactions in a manner that does not jeopardize our status as a REIT.

      Our investment in apartment communities generally gives rise to rental income that is qualifying income for purposes of the 75% and 95% gross income tests. Gains on sales of apartment communities, other than from prohibited transactions, as described below, or of our interest in a partnership generally will be qualifying income for purposes of the 75% and 95% gross income tests. We anticipate that income on our other investments will not result in our failing the 75% or 95% gross income test for any year.

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      Even if we fail to satisfy one or both of the 75% or 95% tests for any taxable year, we may still qualify as a REIT for such year if we are entitled to relief under certain provisions of the Internal Revenue Code. These relief provisions will generally be available if: (1) our failure to comply was due to reasonable cause and not to willful neglect; (2) we report the nature and amount of each item of our income included in the 75% and 95% tests on a schedule attached to our tax return; and (3) any incorrect information on this schedule is not due to fraud with intent to evade tax. It is not possible, however, to state whether in all circumstances we would be entitled to the benefit of these relief provisions. Even if these relief provisions apply, we will still be subject to a special tax upon the greater of either (1) the amount by which 75% of our gross income exceeds the amount of our income qualifying under the 75% test for the taxable year or (2) the amount by which 90% of our gross income exceeds the amount of our income qualifying for the 95% income test for the taxable year, multiplied by a fraction intended to reflect our profitability.

     Annual Distribution Requirements

      To qualify as a REIT, we are required to distribute dividends (other than capital gain dividends) to our stockholders each year in an amount equal to at least (A) the sum of (i) 90% of our REIT taxable income (computed without regard to the dividends paid deduction and our net capital gain) and (ii) 90% of the net income (after tax), if any, from foreclosure property, minus (B) the sum of certain items of non-cash income. Such distributions must be paid in the taxable year to which they relate, or in the following twelve months if declared before we timely file our tax return for such year and if paid on or before the first regular dividend payment after such declaration. If we do not distribute all of our net capital gain or all of our REIT taxable income, as adjusted, we will be subject to tax on the undistributed amount at regular corporate tax rates, as the case may be. (However, we can elect to “pass through” any of our taxes paid on our undistributed net capital gain income to our stockholders on a pro rata basis.) Furthermore, if we should fail to distribute during each calendar year at least the sum of (1) 85% of our ordinary income for such year, (2) 95% of our net capital gain income for such year, and (3) any undistributed taxable income from prior periods, we would be subject to a 4% excise tax on the excess of such required distribution over the sum of the amounts actually distributed and the amount of any net capital gains we elected to retain and pay tax on. For these and other purposes, dividends declared by us in October, November or December of one taxable year and payable to a stockholder of record on a specific date in any such month shall be treated as both paid by us and received by the stockholder during such taxable year, provided that the dividend is actually paid by us by January 31 of the following taxable year.

      We believe that we have made timely distributions sufficient to satisfy the annual distribution requirements. It is possible that in the future we may not have sufficient cash or other liquid assets to meet the distribution requirements, due to timing differences between the actual receipt of income and actual payment of expenses on the one hand, and the inclusion of such income and deduction of such expenses in computing our REIT taxable income on the other hand. Further, as described below, it is possible that, from time to time, we may be allocated a share of net capital gain attributable to the sale of depreciated property that exceeds our allocable share of cash attributable to that sale. To avoid any problem with the distribution requirements, we will closely monitor the relationship between our REIT taxable income and cash flow and, if necessary, will borrow funds or issue preferred or common stock to satisfy the distribution requirement. We may be required to borrow funds at times when market conditions are not favorable.

      If we fail to meet the distribution requirements as a result of an adjustment to our tax return by the Internal Revenue Service, we may retroactively cure the failure by paying a “deficiency dividend” (plus applicable penalties and interest) within a specified period.

Prohibited Transaction Rules

      A REIT will incur a 100% penalty tax on the net income derived from a sale or other disposition of property, other than foreclosure property, that the REIT holds primarily for sale to customers in the ordinary course of a trade or business (a “prohibited transaction”). Under a safe harbor provision in the

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Internal Revenue Code, however, income from certain sales of real property held by the REIT for at least four years at the time of the disposition will not be treated as income from a prohibited transaction. We believe that none of our assets is held for sale to customers and that a sale of any of our assets would not be in the ordinary course of our business. Whether a REIT holds an asset “primarily for sale to customers in the ordinary course of a trade or business” depends, however, on the facts and circumstances in effect from time to time, including those related to a particular asset. Although we will attempt to ensure that none of our sales of property will constitute a prohibited transaction, we cannot assure you that none of such sales will be so treated.

Failure to Qualify

      If we fail to qualify for taxation as a REIT in any taxable year and the relief provisions do not apply, we will be subject to tax (including any applicable alternative minimum tax) on its taxable income at regular corporate rates. Distributions to stockholders in any year in which we fail to qualify will not be deductible by us, nor will they be required to be made. In such event, to the extent of our current and accumulated earnings and profits, all distributions to stockholders will be taxable as ordinary income, and, subject to certain limitations in the Internal Revenue Code, corporate distributees may be eligible for the dividends-received deduction and individual distributees may be eligible for reduced rates of taxation on their distributions under U.S. federal income tax law. Unless entitled to relief under specific statutory provisions, we will also be disqualified from taxation as a REIT for the four taxable years following the year during which qualification was lost. It is not possible to state whether we would be entitled to such statutory relief.

Tax Aspects of Our Investment in Partnerships

      The following discussion summarizes certain U.S. federal income tax considerations applicable solely to our investment in entities treated as partnerships for U.S. federal income tax purposes. The discussion does not cover state or local tax laws or any U.S. federal tax laws other than income tax laws.

     General

      We hold a direct ownership interest in certain partnerships. In general, partnerships are “pass-through” entities which are not subject to U.S. federal income tax. Rather, partners are allocated their proportionate shares of the items of income, gain, loss, deduction and credit of a partnership, and are potentially subject to tax thereon, without regard to whether the partners receive a distribution from the partnership. We include our proportionate share of the foregoing partnership items for purposes of the various REIT income tests and in the computation of our REIT taxable income. See “— Taxation of the Company” and “— Requirements for Qualification — Gross Income Tests.” Any resultant increase in our REIT taxable income increases our distribution requirements (see “— Requirements for Qualification — Annual Distribution Requirements”), but is not subject to U.S. federal income tax in our hands provided that such income is distributed to our stockholders. Moreover, for purposes of the REIT asset tests (see “— Requirements for Qualification — Asset Tests”), we include our proportionate share of assets held by the partnerships.

     Tax Allocations with Respect to the Properties

      Pursuant to Section 704(c) of the Internal Revenue Code, income, gain, loss and deduction attributable to appreciated or depreciated property that is contributed to a partnership in exchange for an interest in the partnership (such as some of our properties), must be allocated in a manner such that the contributing partner is charged with, or benefits from, respectively, the unrealized gain or unrealized loss associated with the property at the time of the contribution. The amount of such unrealized gain or unrealized loss is generally equal to the difference between the fair market value of contributed property at the time of contribution, and the adjusted tax basis of such property at the time of contribution (a “book-tax difference”). Such allocations are solely for U.S. federal income tax purposes and do not affect the book capital accounts or other economic or legal arrangements among the partners. Our two material

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partnership subsidiaries (referred to in this discussion as the “operating partnerships”) have property subject to a book-tax difference. Consequently, the partnership agreement of each of the operating partnerships requires such allocations to be made in a manner consistent with Section 704(c) of the Internal Revenue Code.

      In general, the partners who contributed appreciated assets to an operating partnership will be allocated lower amounts of depreciation deductions for tax purposes and increased taxable income and gain on sale by the operating partnership of the contributed assets (including some of our properties). This will tend to eliminate the book-tax difference over time. However, the special allocation rules under Section 704(c) of the Internal Revenue Code do not always entirely rectify the book-tax difference on an annual basis or with respect to a specific taxable transaction, such as a sale. Thus, the carryover basis of the contributed assets in the hands of the operating partnerships may cause us to be allocated lower depreciation and other deductions, and possibly greater amounts of taxable income in the event of a sale of such contributed assets, in excess of the economic or book income allocated to us as a result of such sale. This may cause us to recognize taxable income in excess of cash proceeds, which might adversely affect our ability to comply with the REIT distribution requirements. See “— Requirements for Qualification — Annual Distribution Requirements.” In addition, the application of Section 704(c) of the Internal Revenue Code to the operating partnerships is not entirely clear and may be affected by authority that may be promulgated in the future.

     Sale of the Properties

      Generally, any gain realized by the operating partnerships on the sale of property held by the operating partnerships will be capital gain, except for any portion of such gain that is treated as certain depreciation or cost recovery recapture. Our share of any gain realized by the operating partnerships on the sale of any “dealer property” generally will be treated as income from a prohibited transaction that is subject to a 100% penalty tax. See “Prohibited Transaction Rules.” Under existing law, whether property is dealer property is a question of fact that depends on all the facts and circumstances with respect to the particular transaction. The operating partnerships intend to hold their properties for investment with a view to long-term appreciation, to engage in the business of acquiring, developing, owning and operating their properties, and to make such occasional sales of their properties as are consistent with our investment objectives. Based upon such investment objectives, we believe that in general our properties should not be considered dealer property and that the amount of income from prohibited transactions, if any, will not be material.

Possible Legislative or Other Actions Affecting Tax Considerations

      Prospective investors should recognize that the present U.S. federal income tax treatment of an investment in us may be modified by legislative, judicial or administrative action at any time, and that any such action may affect investments and commitments previously made. The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process and by the Internal Revenue Service and the U.S. Treasury Department, resulting in revisions of regulations and revised interpretations of established concepts as well as statutory changes. Revisions in U.S. federal tax laws and interpretations thereof could adversely affect the tax consequences of an investment in us.

State and Local Taxes

      We may be subject to state or local taxation in various jurisdictions, including those in which we transact business. Our state and local tax treatment may not conform to the U.S. federal income tax consequences discussed above.

PLAN OF DISTRIBUTION

      We may offer and sell the securities described in this prospectus to or through one or more underwriters or dealers, to one or more investors directly, including through the Internet, through one or

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more agents, or through a combination of these methods. We may offer and sell the securities from time to time in one or more transactions:

  •  at a fixed price or prices, which may be changed,
 
  •  at market prices prevailing at the time of sale,
 
  •  at prices related to prevailing market prices,
 
  •  at varying prices determined at the time of sale, or
 
  •  at negotiated prices.

      Our securities may also be sold in one or more of the following transactions: (1) block transactions in which a broker/ dealer may sell the securities as agent but may position and resell all or a portion of the block as principal to facilitate the transaction, (2) purchases by a broker/ dealer as principal and resale by the broker/ dealer for its own account pursuant to the applicable prospectus supplement, (3) ordinary brokerage transactions and transactions in which the broker/ dealer solicits purchasers, (4) special offerings, exchange distributions or secondary distributions in accordance with applicable NYSE or other stock exchange rules, and (5) sales “at-the-market” to or through a market maker or into an existing trading market, on an exchange or otherwise.

      Any underwriters, dealers, agents or other persons who participate in the distribution of our securities may be deemed to be underwriters under the Securities Act, and any discounts or commissions received by them and any profit realized by them upon resale of the securities may be deemed to be underwriting discounts and commissions under the Securities Act.

      Unless otherwise provided in the applicable prospectus supplement, the obligations of any underwriters to purchase particular securities will be subject to certain conditions precedent, and the underwriters will be obligated to purchase all such securities if any are purchased. In connection with the sale of our securities, underwriters may be deemed to have received compensation from us in the form of underwriting discounts or commissions and may also receive commissions from purchasers of the securities for whom they may act as agent. We may authorize underwriters to act as our agents in the offer and sale of our securities upon the terms and conditions set forth in the applicable prospectus supplement. Underwriters may sell the securities to or through dealers, and the dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agent.

      We may grant to underwriters that we use options to purchase additional securities to cover over-allotments, if any, at the public offering price, with additional underwriting commissions or discounts, as may be set forth in a related prospectus supplement. The terms of any over-allotment option will be set forth in the applicable prospectus supplement.

      If we use dealers to assist us in the offer and sale of our securities, we may sell the securities to those dealers as principals. The dealers may then resell the securities to the public at varying prices to be determined by the dealers at the time of resale. We will include the names of the dealers and the terms of any transactions involving the dealers in the applicable prospectus supplement.

      We may sell securities directly or through agents we designate from time to time. We will name any agent involved in the offering and sale of securities, and we will describe any commissions we will pay the agent, in the applicable prospectus supplement. Unless otherwise indicated in the applicable prospectus supplement, any agent will be acting on a best efforts basis for the period of its appointment. Banc of America Securities LLC, Cantor Fitzgerald & Co., J.P. Morgan Securities Inc., Lehman Brothers Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Salomon Smith Barney Inc., and Wachovia Capital Markets, LLC may act as agent or underwriter in connection with at-the-market offerings or negotiated transactions involving our common stock.

      We may authorize agents, underwriters and dealers to solicit offers by certain specified institutions to purchase securities from us at the public offering price set forth in the applicable prospectus supplement

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pursuant to delayed delivery contracts. These contracts will provide for payment and delivery on a specified date or dates in the future. The conditions to these contracts and the commissions payable for solicitation of these contracts will be described in the applicable prospectus supplement.

      Each time we use this prospectus to sell securities, we will also provide a prospectus supplement describing the specific terms of the securities, the terms of the offering and the method of distribution of the securities. We will identify in the applicable prospectus supplement any underwriter or agent that we use, the compensation that these underwriters or agents will receive from us or otherwise, and any discounts, concessions or commissions allowed by underwriters to participating dealers. The prospectus supplement will also include information regarding the terms or our relationship with any underwriters or agents, their obligations with respect to the offering, and information regarding the proceeds that we will receive and our expected use of those proceeds.

      We may enter into agreements with underwriters, dealers and agents who agree to assist us in the offer and sale of our securities. Under these agreements, we may agree to indemnify the underwriters, dealers and agents and their controlling persons against certain civil liabilities, including liabilities under the Securities Act, and to reimburse them for certain expenses. We may also agree to contribution relating to any payments that the underwriters, dealers or agents and their controlling persons may be required to make under the securities or other laws.

      Certain persons participating in an offering of our securities may engage in transactions that stabilize, maintain or otherwise affect the price of the securities, including over-allotment, stabilizing and short-covering transactions in such securities, and the imposition of a penalty bid, in connection with the offering.

      Underwriters, dealers or agents and their affiliates may engage in transactions with or perform services for us in the ordinary course of business.

      Unless otherwise specified in the applicable prospectus supplement, each series of securities will be a new issue with no established trading market, except for our common stock, which is listed on the NYSE. We may elect to list any new series of debt securities or preferred stock on an exchange, but we are not obligated to do so. Any underwriters may make a market in the securities, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice. We make no assurance as to the liquidity of, or the trading markets for, any of the securities.

LEGAL MATTERS

      Certain legal matters with respect to the securities offered by this prospectus will be passed upon for us by Morrison & Foerster LLP. Any agents or underwriters will be represented by their own legal counsel named in the applicable prospectus supplement.

EXPERTS

      Ernst & Young LLP, independent auditors, have audited our consolidated financial statements and schedule for the year ended December 31, 2003, included in our Current Report on Form 8-K filed on May 14, 2004, as set forth in their report, which is incorporated by reference in this prospectus and elsewhere in the registration statement. Ernst & Young LLP have also audited: (i) the combined statement of revenue and certain expenses of Harbor Greens Apartments, Pinebrook Village Apartments, Huntington Vista Apartments, and Windjammer Apartments for the year ended December 31, 2002, and the statement of revenue and certain expenses of the Inlet Bay at Gateway Apartments for the year ended December 31, 2002, included in our Current Report on Form 8-K filed on January 9, 2004 and also included in our Current Report on Form 8-K/ A filed on February 13, 2004; and (ii) the statement of revenue and certain expenses of Carriage Homes at Wyndham for the year ended December 31, 2002, and the combined statement of revenue and certain expenses of Waterside Towers, Waterside Towers Townhomes and The Commons at Town Square for the year ended December 31, 2002, included in our

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Current Report on Form 8-K/ A filed on February 13, 2004, as set forth in their reports, which are incorporated by reference in this prospectus and elsewhere in the registration statement. Such financial statements and schedule are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

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3,500,000 Shares

UNITED DOMINION LOGO

Common Stock


PROSPECTUS SUPPLEMENT

October 28, 2004


Citigroup