MEDIUM-TERM NOTE

EXHIBIT 4.1

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (THE “DEPOSITARY”) (55 WATER STREET, NEW YORK, NEW YORK) TO THE ISSUER HEREOF OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN CERTIFICATED FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.

     UNITED DOMINION REALTY TRUST, INC., a Maryland corporation (the “Company”, which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & Co., as nominee for The Depository Trust Company, or registered assigns, the Principal Amount of ONE HUNDRED MILLION DOLLARS ($100,000,000), on the Stated Maturity Date specified above (or any Redemption Date or Repayment Date, each as defined on the reverse hereof, or any earlier date of acceleration of maturity) (each such date being hereinafter referred to as the “Maturity Date” with respect to the principal repayable on such date) and to pay interest thereon (and on any overdue principal, premium and/or interest to the extent legally enforceable) at the Interest Rate per annum specified above, until the principal hereof is paid or duly made available for payment. The Company will pay interest in arrears on each Interest Payment Date, if any, specified above (each, an “Interest Payment Date”), commencing with the first Interest Payment Date next succeeding the Original Issue Date specified above, and on the Maturity Date; provided , however , that if the Original Issue Date occurs between a Record Date (as defined below) and the next succeeding Interest Payment Date, interest payment will commence on the Interest Payment Date immediately following the next succeeding Record Date to the registered holder (the “Holder”) of this Note on the next succeeding Record Date. Interest on this Note will be computed on the basis of a 360-day year of twelve 30-day months.

     Interest on this Note will accrue from, and including, the immediately preceding Interest Payment Date to which interest has been paid or duly provided for (or from, and including, the Original Issue Date if no interest has been paid or duly provided for) to, but excluding, the applicable Interest Payment Date or the Maturity Date, as the case may be (each, an “Interest Period”). The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, subject to certain exceptions described herein, be paid to the person in whose name this Note (or one or more predecessor Notes, as defined on the reverse hereof) is registered at the close of business on the fifteenth calendar day (whether or not a Business Day, as defined below) immediately preceding such Interest Payment Date (the “Record Date”); provided , however , that interest payable on the Maturity Date will be payable to the person to whom the principal hereof and premium, if any, hereon shall be payable. Any such interest not so punctually paid or duly provided for on any Interest Payment Date other than the Maturity Date (“Defaulted Interest”) shall forthwith cease to be payable to the Holder on the close of business on any Record Date and, instead, shall be paid to the person in whose name this Note is registered at the close of business on a special record date (the “Special Record Date”) for the payment of such Defaulted Interest to be fixed by the Trustee hereinafter referred to, notice whereof shall be given to the Holder of this Note by the Trustee not less than 10 calendar days prior to such Special Record Date or may be paid at any time in any other lawful manner, all as more fully provided for in the Indenture.

     Payment of principal, premium, if any, and interest in respect of this Note due on the Maturity Date will be made in immediately available funds upon presentation and surrender of this Note (and, with respect to any applicable repayment of this Note, upon delivery of instructions as contemplated on the reverse hereof) at the office or agency maintained by the Company for that purpose in the Borough of Manhattan, The City of New York, currently the corporate trust office of the Trustee located at 40 Broad Street, 5th Floor, New York, New York 10004, or at such other paying agency in the Borough of Manhattan, The City of New York, as the Company may determine; provided , however , that if the Specified Currency (as defined

below) is other than United States dollars and such payment is to be made in the Specified Currency in accordance with the provisions set forth below, such payment will be made by wire transfer of immediately available funds to an account with a bank designated by the Holder hereof at least 15 calendar days prior to the Maturity Date, provided that such bank has appropriate facilities therefor and that this Note is presented and surrendered and, if applicable, instructions are delivered at the aforementioned office or agency maintained by the Company in time for the Trustee to make such payment in such funds in accordance with its normal procedures. Payment of interest due on any Interest Payment Date other than the Maturity Date will be made at the aforementioned office or agency maintained by the Company or, at the option of the Company, by check mailed to the address of the person entitled thereto as such address shall appear in the Security Register maintained by the Trustee; provided , however , that a Holder of U.S.$10,000,000 (or, if the Specified Currency is other than United States dollars, the equivalent thereof in the Specified Currency) or more in aggregate principal amount of Notes (whether having identical or different terms and provisions) will be entitled to receive interest payments on such Interest Payment Date by wire transfer of immediately available funds if such Holder has delivered appropriate wire transfer instructions in writing to the Trustee not less than 15 calendar days prior to such Interest Payment Date. Any such wire transfer instructions received by the Trustee shall remain in effect until revoked by such Holder.

     If any Interest Payment Date or the Maturity Date falls on a day that is not a Business Day, the required payment of principal, premium, if any, and/or interest shall be made on the next succeeding Business Day with the same force and effect as if made on the date such payment was due, and no interest shall accrue with respect to such payment for the period from and after such Interest Payment Date or the Maturity Date, as the case may be, to the date of such payment on the next succeeding Business Day.

     As used herein, “Business Day” means any day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which commercial banks are authorized or required by law, regulation or executive order to close in The City of New York; provided , however , that if the Specified Currency is other than United States dollars, such day must also not be a day on which commercial banks are authorized or required by law, regulation or executive order to close in the Principal Financial Center (as defined below) of the country issuing the Specified Currency (or, if the Specified Currency is Euro, such day must also be a day on which the Trans-European Automated Real-Time Gross Settlement Express Transfer (TARGET) System is open). “Principal Financial Center” means the capital city of the country issuing the Specified Currency, except that with respect to United States dollars, Australian dollars, Canadian dollars, Euros, South African rands and Swiss francs, the “Principal Financial Center” shall be The City of New York, Sydney, Toronto, Johannesburg and Zurich, respectively.

     The Company is obligated to make payment of principal, premium, if any, and interest in respect of this Note in the currency in which this Note is denominated above (or, if such currency is not at the time of such payment legal tender for the payment of public and private debts in the country issuing such currency or, if such currency is Euro, in the member states of the European Union that have adopted the single currency in accordance with the Treaty establishing the European Community, as amended by the Treaty on European Union, then the currency which is at the time of such payment legal tender in the related country or in the adopting member states of the European Union, as the case may be) (the “Specified Currency”). If the Specified

Currency is other than United States dollars, except as otherwise provided below, any such amounts so payable by the Company will be converted by the Exchange Rate Agent specified above into United States dollars for payment to the Holder of this Note.

     Any United States dollar amount to be received by the Holder of this Note will be based on the highest bid quotation in The City of New York received by the Exchange Rate Agent at approximately 11:00 A.M., New York City time, on the second Business Day preceding the applicable payment date from three recognized foreign exchange dealers (one of whom may be the Exchange Rate Agent) selected by the Exchange Rate Agent and approved by the Company for the purchase by the quoting dealer of the Specified Currency for United States dollars for settlement on such payment date in the aggregate amount of the Specified Currency payable to all Holders of Notes scheduled to receive United States dollar payments and at which the applicable dealer commits to execute a contract. All currency exchange costs will be borne by the Holder of this Note by deductions from such payments. If three such bid quotations are not available, payments on this Note will be made in the Specified Currency.

     If the Specified Currency is other than United States dollars, the Holder of this Note may elect to receive all or a specified portion of any payment of principal, premium, if any, and/or interest, if any, in respect of this Note in the Specified Currency by submitting a written request for such payment to the Trustee at its corporate trust office in The City of New York on or prior to the applicable Record Date or at least 15 calendar days prior to the Maturity Date, as the case may be. Such written request may be mailed or hand delivered or sent by cable, telex or other form of facsimile transmission. The Holder of this Note may elect to receive all or a specified portion of all future payments in the Specified Currency in respect of such principal, premium, if any, and/or interest, if any, and need not file a separate election for each payment. Such election will remain in effect until revoked by written notice delivered to the Trustee, but written notice of any such revocation must be received by the Trustee on or prior to the applicable Record Date or at least 15 calendar days prior to the Maturity Date, as the case may be.

     If the Specified Currency is other than United States dollars and the Holder of this Note shall have duly made an election to receive all or a specified portion of any payment of principal, premium, if any, and/or interest, if any, in respect of this Note in the Specified Currency, but the Specified Currency is not available due to the imposition of exchange controls or other circumstances beyond the control of the Company, the Company will be entitled to satisfy its obligations to the Holder of this Note by making such payment in United States dollars on the basis of the Market Exchange Rate (as defined below) determined by the Exchange Rate Agent on the second Business Day prior to such payment date or, if such Market Exchange Rate is not then available, on the basis of the most recently available Market Exchange Rate. The “Market Exchange Rate” for the Specified Currency other than United States dollars means the noon dollar buying rate in The City of New York for cable transfers for the Specified Currency as certified for customs purposes (or, if not so certified, as otherwise determined) by the Federal Reserve Bank of New York. Any payment made in United States dollars under such circumstances shall not constitute an Event of Default (as defined in the Indenture).

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