WASHINGTON REAL ESTATE INVESTMENT TRUST
424B5, 2000-08-14
REAL ESTATE INVESTMENT TRUSTS
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                                                                  Rule 424(b)(5)
                                                      Registration No. 333-81913



PROSPECTUS SUPPLEMENT
---------- ----------
(To prospectus dated August 14, 2000)
[WRIT LOGO]

                                 $125,000,000
                    Washington Real Estate Investment Trust
                          Medium-Term Notes, Series B
                  Due Nine Months or More From Date of Issue
                              __________________

 . We will offer notes from time to time and specify the terms and conditions of
  each issue of notes in a pricing supplement.

 . The notes will be unsecured debt securities of Washington Real Estate
  Investment Trust, or WRIT.

 . The notes will have stated maturities of nine months or more from the date
  they are originally issued.

 . We will pay amounts due on the notes in U.S. dollars or any other currency
  described in the applicable pricing supplement.

 . The notes may bear interest at fixed or floating rates, or may bear no
  interest at all. If the notes bear interest at a floating rate, the floating
  rate may be based on one or more indices or formulas.

 . We will specify whether the notes can be redeemed or repaid before their
  stated maturity and whether they are subject to mandatory redemption,
  redemption at the option of WRIT or repayment at the option of the holder of
  the notes.

Investing in the notes involves risks. See "Risk Factors" beginning on page S-3.

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

<TABLE>
<CAPTION>
                                                           Agents' Discounts
                               Public Offering Price        and Commissions         Proceeds, before expenses, to WRIT
                               ---------------------        ---------------         ----------------------------------
     <S>                       <C>                         <C>                      <C>
     Per note................           100%                  .125%-.750%                     99.875%-99.250%
     Total(1)................       $125,000,000           $156,250-$937,500             $124,843,750-$124,062,500
</TABLE>

______________
  (1)  Or the equivalent in one or more foreign or composite currencies.

     We may sell notes to the agents referred to below as principal for resale
at varying or fixed offering prices or through the agents as agents using their
reasonable efforts on our behalf. We may also sell notes without the assistance
of any agent.

     If we sell other securities referred to in the accompanying prospectus, the
amount of notes that we may offer and sell under this prospectus supplement may
be reduced.
                               __________________

Merrill Lynch & Co.
       Banc One Capital Markets, Inc.
               Deutsche Banc Alex. Brown
                        A.G. Edwards & Sons, Inc.
                                Legg Mason Wood Walker,
                                       Incorporated
                                     Salomon Smith Barney

                               __________________

          The date of this prospectus supplement is August 14, 2000.
<PAGE>

                               TABLE OF CONTENTS

Prospectus Supplement
---------------------

<TABLE>
<CAPTION>
                                                                                                    Page
                                                                                                    ----
<S>                                                                                                 <C>
Risk Factors.....................................................................................    S-3
        Redemption may adversely affect your return on the notes.................................    S-3
        The trading market for the notes may be limited; many factors affect the trading value
             of the notes........................................................................    S-3
        Notes indexed to interest rate, currency or other indices or formulas are risky because
             of fluctuations in the indices or formulas..........................................    S-3
        Our credit ratings may not reflect all risks of an investment in the notes...............    S-4
Description of the Notes.........................................................................    S-4
United States Federal Income Taxation............................................................   S-27
Plan of Distribution.............................................................................   S-36
Validity of the Notes............................................................................   S-37

<CAPTION>
Prospectus
----------

                                                                                                    Page
                                                                                                    ----
<S>                                                                                                 <C>
About this Prospectus............................................................................      3
Washington Real Estate Investment Trust..........................................................      3
Use of Proceeds..................................................................................      4
Ratios of Earnings to Fixed Charges and Debt Service Coverage....................................      4
Description of Shares............................................................................      5
Description of Common Share Warrants.............................................................     15
Description of Debt Securities...................................................................     16
Plan of Distribution.............................................................................     41
Legal Opinions...................................................................................     42
Experts..........................................................................................     42
Where You Can Find More Information..............................................................     43
</TABLE>

         You should rely only on the information contained or incorporated by
reference in this prospectus supplement, the accompanying prospectus and the
applicable pricing supplement. Neither we nor any agent referred to on the cover
page of this prospectus supplement has authorized any other person to provide
you with different or additional information. If anyone provides you with
different or additional information, you should not rely on it. Neither we nor
any agent is making an offer to sell the notes in any jurisdiction where the
offer or sale is not permitted. You should assume that the information contained
or incorporated by reference in this prospectus supplement, the accompanying
prospectus and any pricing supplement is accurate only as of the date on the
front cover of the applicable pricing supplement.

                                      S-2
<PAGE>

                                 RISK FACTORS

     Your investment in the notes involves risks. In consultation with your
own financial and legal advisers, you should carefully consider, among other
matters, the following discussion of risks before deciding whether an investment
in the notes is suitable for you. The notes are not an appropriate investment
for you if you are unsophisticated with respect to the structure of the notes,
including interest rate, currency and other indices or formulas.

Redemption may adversely affect your return on the notes

     If the notes are redeemable at our option or are otherwise subject to
mandatory redemption, we may, in the case of optional redemption, or must, in
the case of mandatory redemption, redeem your notes. The redemption may occur at
times when prevailing interest rates are relatively low. Accordingly, you
generally will not be able to reinvest the redemption proceeds in a comparable
security at an effective interest rate as high as that of the notes.

The trading market for the notes may be limited; many factors affect the trading
value of the notes

     We cannot assure you that a trading market for the notes will ever
develop or be maintained if developed. Many factors independent of our
creditworthiness may affect the trading market for and market value of the
notes. These factors include:

     .    the complexity and volatility of the index or formula applicable to
          the notes,

     .    the method of calculating the principal, any premium and interest on
          the notes,

     .    the time remaining to the maturity of the notes,

     .    the outstanding amount of the notes,

     .    the redemption features of the notes,

     .    the amount of other securities linked to the index or formula
          applicable to the notes, and

     .    the level, direction and volatility of market interest rates
          generally.

     In addition, some of the notes may be designed for specific investment
objectives or strategies, and these notes often experience a more limited
trading market and more price volatility. The number of buyers for these notes
may be limited. This may affect the price you receive for these notes or your
ability to sell these notes at all. You should not purchase notes unless you
understand and can bear the risks that the notes may not be readily saleable and
that the market value of the notes may fluctuate significantly over time.

Notes indexed to interest rate, currency or other indices or formulas are risky
because of fluctuations in the indices or formulas

     An investment in notes indexed to one or more interest rate, currency
or other indices or formulas involves significant risks not associated with a
conventional fixed rate or floating rate debt security. These risks include
fluctuation of the indices or formulas and the possibility that:

     .    you may receive no interest or an amount less than you expected;

     .    you may receive payment of the principal and any premium at times
          different than you expected; and

                                      S-3
<PAGE>

     .    you may lose all or a substantial part of the principal and any
          premium.

The magnitude and duration of these risks depend on a number of factors over
which we have no control, including economic, financial and political events. In
addition, if an index or formula used to determine any amounts payable in
respect of the notes contains a multiplier or leverage factor, the effect of any
change in that index or formula will be magnified. In recent years, values of
some indices and formulas have been volatile, and volatility in those and other
indices and formulas may continue or increase in the future. In addition, past
experience with indices and formulas is not necessarily indicative of what may
occur in the future.

Our credit ratings may not reflect all risks of an investment in the notes

     Our credit ratings are an assessment of our ability to pay our obligations.
Consequently, real or anticipated changes in our credit ratings will generally
affect the market value of the notes. Our credit ratings, however, may not
reflect the potential impact of all risks related to structure, market or other
factors discussed above on the value of the notes.

                           DESCRIPTION OF THE NOTES

     The notes will be issued as a series of senior debt securities under a
senior indenture, dated as of August 1, 1996, as amended or supplemented from
time to time, between WRIT and Bank One Trust Company, N.A. (as successor in
interest to The First National Bank of Chicago), as indenture trustee. We use
the term debt securities in this prospectus supplement to refer to the notes and
all other securities issued and issuable from time to time under WRIT's senior
indenture. In the accompanying prospectus, we describe some of the terms of the
debt securities and some of the provisions of the senior indenture. We describe
below, and will describe in a pricing supplement, some specific terms of the
notes. The descriptions in this prospectus supplement and in the accompanying
prospectus are not complete and may not contain all of the information that may
be important to you. To obtain further information, you should refer to the
pricing supplement and the provisions of the senior indenture and the notes.

     The following description of notes will apply unless otherwise specified in
an applicable pricing supplement.

Terms of the Notes

     All debt securities, including the notes, issued and to be issued under the
senior indenture will be unsecured general obligations of WRIT and will rank
equally with all other unsecured and unsubordinated debt of WRIT from time to
time outstanding. Although WRIT's senior indenture contains financial covenants,
it does not limit the aggregate principal amount of debt securities that WRIT
may issue so long as the covenants are satisfied. WRIT may issue its debt
securities from time to time as a single series or in two or more separate
series up to the aggregate principal amount from time to time authorized by WRIT
for each series. WRIT may, from time to time, without the consent of the holders
of the notes, provide for the issuance of notes or other debt securities under
the senior indenture in addition to the $125,000,000 aggregate principal amount
of notes offered by this prospectus supplement. As of June 30, 2000, WRIT had
$210.0 million aggregate principal amount of debt securities, including notes,
issued and outstanding. The aggregate principal amount of notes that may be
offered and sold by this prospectus supplement will be reduced if WRIT sells
other securities under the registration statement of which this prospectus
supplement and the accompanying prospectus are a part.

                                      S-4
<PAGE>

     The notes will be offered on a continuing basis and will mature on a day
nine months or more from the date of issue, as selected by the purchaser and
agreed to by WRIT. The notes will be payable at stated maturity, or on any date
before the stated maturity date on which the principal or an installment of
principal of a note becomes due and payable, whether by the declaration of
acceleration, call for redemption at the option of WRIT, repayment at the option
of the holder or otherwise. We refer to the stated maturity date or any prior
maturity date, as the case may be as a "Maturity."

     Interest-bearing notes will bear interest at either fixed or floating rates
as specified in the applicable pricing supplement. Notes may also be issued at
significant discounts from their principal amount.

     Unless otherwise indicated in the applicable pricing supplement, the notes
will be denominated in United States dollars, and WRIT will make payments of
principal of, and any premium and interest on, the notes in United States
dollars.

     WRIT may change interest rates, interest rate formulas and other variable
terms of the notes from time to time, but no change will affect any note already
issued or for which WRIT has accepted an offer to purchase.

     Each note will be issued in fully registered book-entry form or
certificated form, in denominations of $1,000 and integral multiples of $1,000,
unless otherwise specified in the applicable pricing supplement. Notes in book-
entry form may be transferred or exchanged only through a participating member
of The Depository Trust Company, also known as DTC, or any other depository as
is identified in an applicable pricing supplement. See "--Book-Entry Notes."
Registration of transfer of notes in certificated form will be made at the
corporate trust office of the indenture trustee. There will be no service charge
for any registration of transfer or exchange of notes, but WRIT may require
payment of a sum sufficient to cover any tax or other governmental charge
payable in connection with any transfer or exchange, other than exchanges under
the senior indenture not involving any transfer.

     WRIT will make payments of principal of, and any premium and interest on,
notes in book-entry form through the indenture trustee to the depository or its
nominee. See "--Book-Entry Notes." Unless otherwise specified in the applicable
pricing supplement, a beneficial owner of notes in book-entry form that are
denominated in a currency other than United States dollars (a "Specified
Currency") electing to receive payments of principal or any premium or interest
in that Specified Currency must notify the participant of DTC through which its
interest is held. The notice must be given on or before the applicable regular
record date, in the case of a payment of interest, and on or before the
sixteenth day, whether or not a Business Day, as defined below, before its
stated maturity, in the case of principal or premium, of the beneficial owner's
election to receive all or a portion of any payment in a Specified Currency. The
participant must notify the depository of any election on or before the third
Business Day after the regular record date. The depository will notify the
paying agent of the election on or before the fifth Business Day after the
regular record date. If complete instructions are received by the participant
and forwarded to the depository, and forwarded by the depository to the paying
agent, on or before the relevant dates, the beneficial owner of the notes in
book-entry form will receive payments in the Specified Currency.

      In the case of notes in certificated form, WRIT will make payment of
principal and any premium at the Maturity of each note in immediately available
funds upon presentation and surrender of the note and, in the case of any
repayment on an optional repayment date, upon submission of a duly completed
election form if and as required by the provisions described below, at the
corporate trust office of the indenture trustee in the Borough of Manhattan, The
City of New York, or at any other place WRIT may designate. Payment of interest
due at Maturity will be made to the person to whom payment of the principal of
the note in certificated form will be made. Payment of interest due on notes in
certificated form other than at Maturity will be made

                                      S-5
<PAGE>

by check mailed to the address of the person entitled to receive payment at the
address appearing in the security register. However, a holder of $10,000,000 or
more in aggregate principal amount of notes in certificated form, whether having
identical or different terms and provisions, having the same interest payment
dates will, be entitled to receive interest payments, other than at Maturity, by
wire transfer of immediately available funds if appropriate wire transfer
instructions have been received in writing by the indenture trustee not less
than 15 days before the applicable interest payment date. Any wire instructions
received by the indenture trustee will remain in effect until revoked by the
holder.

     "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 or executive order to close in The City of New York. Also, with
respect to non-United States dollar-denominated notes, Business Day excludes a
day on which commercial banks are authorized or required by law 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 the
Euro, a day on which the Trans-European Automated Real-time Gross Settlement
Express Transfer (TARGET) System is closed. In addition, with respect to notes
as to which LIBOR is an applicable Interest Rate Basis, Business Day excludes a
day that is not a London Business Day. "London Business Day" means a day on
which commercial banks are open for business, including dealings in the LIBOR
Currency, as defined below, in London.

     "Principal Financial Center" means, unless otherwise specified in the
applicable pricing supplement,

     (1)  the capital city of the country issuing the Specified Currency; or

     (2)  the capital city of the country to which the LIBOR Currency relates;

provided, however, that with respect to (a) United States dollars, it means The
City of New York, (b) Australian dollars, it means Sydney and (solely in the
case of the Specified Currency) Melbourne, (c) Canadian dollars, it means
Toronto, (d) Deutsche marks, it means Frankfurt, (e) Dutch guilders, it means
Amsterdam, (f) Italian lire, it means Milan, (g) South African rand, it means
Johannesburg, (h) Swiss francs, it means Zurich or (i) Portuguese escudos, it
means London (solely in the case of LIBOR Currency).

Transaction Amount

     WRIT may offer notes with different interest rates depending upon, among
other things, the aggregate principal amount of notes purchased in any
transaction. WRIT may offer notes with similar variable terms but different
interest rates concurrently at any time. WRIT may also concurrently offer notes
having different variable terms to different investors.

Redemption at the Option of WRIT

     Unless otherwise specified in the applicable pricing supplement, the notes
will not be subject to any sinking fund.  WRIT may redeem the notes at its
option before their stated maturity only if an initial redemption date is
specified in the notes and in the applicable pricing supplement.  If so
indicated in the applicable pricing supplement, WRIT may redeem the notes at its
option on any date on and after the applicable initial redemption date specified
in the applicable pricing supplement.  On and after any initial redemption date,
WRIT may redeem the notes at any time in whole or from time to time in part at
its option at the applicable redemption price referred to below together with
interest on the principal of the notes payable to the redemption date, on notice
given, unless otherwise specified in the applicable pricing supplement, not more
than 60 nor less than 30 days before the redemption date.  WRIT will redeem the
notes in integral multiples of

                                      S-6
<PAGE>

$1,000, or other minimum denomination specified in the applicable pricing
supplement. But any remaining principal amount must be at least $1,000 or other
minimum authorized denomination of the applicable note. Unless otherwise
specified in the applicable pricing supplement, the redemption price with
respect to a note will initially mean a percentage, the initial redemption
percentage, of the principal amount of the note to be redeemed specified in the
applicable pricing supplement. The initial redemption percentage will decline at
each anniversary of the initial redemption date by a percentage specified in the
applicable pricing supplement, of the principal amount to be redeemed until the
redemption price is 100% of the principal amount.

Repayment at the Option of the Holder

     If so indicated in an applicable pricing supplement, WRIT will repay the
notes in whole or in part at the option of the holders of the notes on any
optional repayment date specified in the applicable pricing supplement. If no
optional repayment date is indicated with respect to a note, it will not be
repayable at the option of the holder before its stated maturity. Any repayment
in part will be in an amount equal to $1,000 or integral multiples of $1,000, or
other minimum denomination specified in the applicable pricing supplement. But
any remaining principal amount must be at least $1,000 or other minimum
authorized denomination of the applicable note. The repurchase price for any
note so repurchased will be 100% of the principal amount to be repaid, together
with interest on the principal of the note payable to the date of repayment. For
any note to be repaid, the indenture trustee must receive, at its office
maintained for that purpose in the Borough of Manhattan, The City of New York,
currently the corporate trust office of the indenture trustee, not more than 60
nor less than 30 days before the optional repayment date:

     .    in the case of a note in certificated form, the note and the form
          entitled "Option to Elect Repayment" duly completed, or

     .    in the case of a note in book-entry form, instructions to that effect
          from the applicable beneficial owner of the notes to the depository
          and forwarded by the depository.

Notices of elections from a holder to exercise the repayment option must be
received by the indenture trustee by 5:00 p.m., New York City time, on the last
day for giving such notice. Exercise of the repayment option by the holder of a
note will be irrevocable.

     Only the depository may exercise the repayment option with respect to
global securities representing notes in book-entry form. Accordingly, beneficial
owners of global securities that desire repayment of all or any portion of the
notes in book-entry form represented by global securities must instruct the
participant through which they own their interest to direct the depository to
exercise the repayment option on their behalf by forwarding the repayment
instructions to the indenture trustee as discussed above. To ensure that the
instructions are received by the indenture trustee on a particular day, the
beneficial owner must so instruct the participant through which it owns its
interest before that participant's deadline for accepting instructions for that
day. Different firms may have different deadlines for accepting instructions
from their customers. Accordingly, beneficial owners of notes in book-entry form
should consult the participants through which they own their interest for the
deadlines. All instructions given to participants from beneficial owners of
notes in book-entry form relating to the option to elect repayment will be
irrevocable. In addition, at the time instructions are given, each beneficial
owner will cause the participant through which it owns its interest to transfer
its interest in the global security or securities representing the notes in
book-entry form, on the depository's records, to the indenture trustee. See
"--Book-Entry Notes".

     If applicable, WRIT will comply with the requirements of Section 14(e)
of the Securities Exchange Act of 1934, as amended, and the rules promulgated
under that section and any other securities laws or regulations in connection
with any repayment at the option of the holder.

                                      S-7
<PAGE>

     WRIT may at any time purchase notes at any price or prices in the open
market or otherwise. Notes so purchased by WRIT may, at the discretion of WRIT,
be held, resold or surrendered to the indenture trustee for cancellation.

Interest

     Each note will bear interest from the date of issue at the annual rate
or, in the case of a floating rate note, in accordance with the interest rate
formula stated in the applicable note and in the applicable pricing supplement
until the principal of the note is paid or made available for payment. Interest
will be payable in arrears on each interest payment date specified in the
applicable pricing supplement on which an installment of interest is due and
payable and at Maturity. The first payment of interest on any note originally
issued between a regular record date and the related interest payment date will
be made on the interest payment date immediately following the next regular
record date to the registered holder on that date. The regular record date will
be the fifteenth calendar day, whether or not a Business Day, immediately
preceding the related interest payment date.

     Fixed Rate Notes

     Unless otherwise specified in the applicable pricing supplement, each
fixed rate note will bear interest from, and including, the date of issue, at
the annual rate stated on the face of the note until the principal amount of the
note is paid or made available for payment. Interest payments on fixed rate
notes will equal the amount of interest accrued from and including the
immediately preceding interest payment date as to which interest has been paid
or, if no interest has been paid with respect to the applicable fixed rate
notes, from and including the date of issue to, but excluding, the related
interest payment date or Maturity, as the case may be. Unless otherwise
specified in the applicable pricing supplement, interest on fixed rate notes
will be computed on the basis of a 360-day year of twelve 30-day months.

     Unless otherwise specified in the applicable pricing supplement, interest
on fixed rate notes will be payable semiannually on January 1 and July 1 of each
year and at Maturity. If any interest payment date or the Maturity of a fixed
rate note falls on a day that is not a Business Day, the related payment of
principal, any premium or interest will be made on the next Business Day as if
made on the date the applicable payment was due, and no interest will accrue on
the amount payable for the period from and after the interest payment date or
Maturity, as the case may be.

     Floating Rate Notes

     Interest on floating rate notes will be determined by reference to the
applicable Interest Rate Basis or Interest Rate Bases, which may be:

     .    the CD Rate,

     .    the CMT Rate,

     .    the Commercial Paper Rate,

     .    the Eleventh District Cost of Funds Rate,

     .    the Federal Funds Rate,

     .    LIBOR,

                                      S-8
<PAGE>

     .    the Prime Rate,

     .    the Treasury Rate, or

     .    any other Interest Rate Basis or interest rate formula that is
          specified in the applicable pricing supplement.

     A floating rate note may bear interest with respect to two or more Interest
     Rate Bases.

     Terms. Each applicable pricing supplement will specify the terms of the
floating rate note being delivered, including:

     .    whether the floating rate note is

          -- a "Regular Floating Rate Note,"

          -- an "Inverse Floating Rate Note" or

          -- a "Floating Rate/Fixed Rate Note,"

     .    the date on which interest begins to accrue on a fixed basis to
          Maturity, if applicable,

     .    the Fixed Interest Rate, if applicable,

     .    the Interest Rate Basis or Bases,

     .    the Initial Interest Rate,

     .    the Interest Reset Dates,

     .    the interest payment dates,

     .    the Index Maturity, which is the period to maturity of the
          instrument or obligation with respect to which the Interest
          Rate Basis or Bases will be calculated,

     .    the Maximum Interest Rate and Minimum Interest Rate, if any,

     .    the Spread, which is the number of basis points to be added to
          or subtracted from the related Interest Rate Basis or Bases,

     .    the Spread Multiplier, which is the percentage of the related
          Interest Rate Basis or Bases by which the Interest Rate Basis
          or Bases will be multiplied to determine the applicable
          interest rate, and

     .    if one or more of the specified Interest Rate Bases is LIBOR,
          the LIBOR Currency, the Index Maturity and the LIBOR Page.

     The interest rate borne by the floating rate notes will be determined
as follows:

                                      S-9
<PAGE>

     Regular Floating Rate Notes.  Unless a floating rate note is designated as
a Floating Rate/Fixed Rate Note, as an Inverse Floating Rate Note, as having an
Addendum attached or as having "Other Provisions" apply relating to a different
interest rate formula, it will be a "Regular Floating Rate Note."  Except as
described below or in an applicable pricing supplement, the note will bear
interest at the rate determined by reference to the applicable Interest Rate
Bases:

     .  plus or minus any applicable Spread, and

     .  multiplied by any applicable Spread Multiplier.

Commencing on the first Interest Reset Date, the rate at which interest on the
Regular Floating Rate Note will be payable will be reset as of each Interest
Reset Date; except that the interest rate in effect for the period from the date
of issue to the first Interest Reset Date will be the Initial Interest Rate.

     Floating Rate/Fixed Rate Notes.  If a floating rate note is designated as a
"Floating Rate/Fixed Rate Note," it will bear interest at the rate determined by
reference to the applicable Interest Rate Bases:

     .  plus or minus any applicable Spread, and

     .  multiplied by any applicable Spread Multiplier.

Commencing on the first Interest Reset Date, the rate at which interest on the
applicable Floating Rate/Fixed Rate Note will be payable will be reset as of
each Interest Reset Date; except that:

     .  the interest rate in effect for the period from the date of issue to
        the first Interest Reset Date will be the Initial Interest Rate, and

     .  the interest rate in effect commencing on, and including, the date on
        which interest begins to accrue on a fixed rate basis to Maturity will
        be the Fixed Interest Rate, if the rate is specified in the applicable
        pricing supplement, or if no Fixed Interest Rate is specified, the
        interest rate in effect on the Floating Rate/Fixed Rate Note on the day
        immediately preceding the date on which interest begins to accrue on a
        fixed rate basis.

     Inverse Floating Rate Notes.  If a floating rate note is designated as an
"Inverse Floating Rate Note," except as described below or in the applicable
pricing supplement, it will bear interest equal to the Fixed Interest Rate
specified in the related pricing supplement minus the rate determined by
reference to the applicable Interest Rate Bases:

     .  plus or minus any applicable Spread, and

     .  multiplied by any applicable Spread Multiplier.

However, unless otherwise specified in the applicable pricing supplement, the
interest rate on the applicable Inverse Floating Rate Note will not be less than
zero percent.  Commencing on the first Interest Reset Date, the rate at which
interest on the applicable Inverse Floating Rate Note will be payable will be
reset as of each Interest Reset Date; except that the interest rate in effect
for the period from the date of issue to the first Interest Reset Date will be
the Initial Interest Rate.

     Each Interest Rate Basis will be the rate determined in accordance with the
applicable provisions below.  Except as described above, the interest rate in
effect on each day will be:

                                      S-10
<PAGE>

     .  if the day is an Interest Reset Date, the interest rate determined as of
        the Interest Determination Date, as defined below, immediately preceding
        the applicable Interest Reset Date; or

     .  if the day is not an Interest Reset Date, the interest rate determined
        as of the Interest Determination Date immediately preceding that
        Interest Reset Date.

     Interest Reset Dates.  The applicable pricing supplement will specify the
dates on which the interest rate on the related floating rate note will be reset
(each, an "Interest Reset Date").  Unless otherwise specified in the applicable
pricing supplement, the Interest Reset Date will be, in the case of floating
rate notes that reset:

     .  daily - each Business Day;

     .  weekly - the Wednesday of each week, with the exception of weekly reset
        Floating Rate Notes as to which the Treasury Rate is an applicable
        Interest Rate Basis, which will reset the Tuesday of each week, except
        as described below;

     .  monthly - the third Wednesday of each month, with the exception of
        monthly reset Floating Rate Notes as to which the Eleventh District Cost
        of Funds Rate is an applicable Interest Rate Basis, which will reset on
        the first calendar day of the month;

     .  quarterly - the third Wednesday of March, June, September and December
        of each year;

     .  semiannually - the third Wednesday of the two months specified in the
        applicable pricing supplement; and

     .  annually - the third Wednesday of the month specified in the applicable
        pricing supplement;

except that with respect to Floating Rate/Fixed Rate Notes, the rate of interest
will not reset after the applicable date on which interest on a fixed rate basis
begins to accrue.

     If any Interest Reset Date for any floating rate note would otherwise be a
day that is not a Business Day, the applicable Interest Reset Date will be
postponed to the next succeeding day that is a Business Day, except that in the
case of a floating rate note as to which LIBOR is an applicable Interest Rate
Basis, if the Business Day falls in the next succeeding calendar month, then the
Interest Reset Date will be the immediately preceding Business Day.  In
addition, in the case of a floating rate note for which the Treasury Rate is an
applicable Interest Rate Basis if the Interest Determination Date would
otherwise fall on an Interest Reset Date, then the applicable Interest Reset
Date will be postponed to the next succeeding Business Day.

     Maximum and Minimum Interest Rates.  A floating rate note may also have
either or both of the following:

     .  a Maximum Interest Rate, which is a maximum numerical limitation, or
        ceiling, on the rate at which interest may accrue during any interest
        period, and

     .  a Minimum Interest Rate, which is a minimum numerical limitation, or
        floor, on the rate at which interest may accrue during any period.

     The senior indenture is, and any notes issued under the senior indenture
will be, governed by and construed in accordance with the laws of the State of
New York.  The interest rate on the notes will not be

                                      S-11
<PAGE>

higher than the maximum rate permitted by New York law, as it may be modified by
U.S. law of general application. Under present New York law, the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to securities in which $2,500,000 or more has been invested. While WRIT believes
that New York law would be given effect by a state or federal court sitting
outside of New York, state laws frequently regulate the amount of interest that
may be charged to and paid by a borrower, including, in some cases, corporate
borrowers. We suggest that prospective investors consult their personal advisors
with respect to the applicability of these laws. WRIT has agreed for the benefit
of the beneficial owners of the notes, to the extent permitted by law, not to
claim voluntarily the benefits of any laws concerning usurious rates of interest
against a beneficial owner of the notes.

     Interest Payments.  The applicable pricing supplement will specify the
dates on which interest will be payable.  Each floating rate note will bear
interest from the date of issue at the rates specified in the note until the
principal of the note is paid or otherwise made available for payment.  Except
as described below or in the applicable pricing supplement, the interest payment
dates with respect to floating rate notes will be, in the case of floating rate
notes which reset:

     .    daily, weekly or monthly - the third Wednesday of each month or on the
          third Wednesday of March, June, September and December of each year,
          as specified in the applicable pricing supplement;

     .    quarterly - the third Wednesday of March, June, September and December
          of each year;

     .    semiannually - the third Wednesday of the two months of each year
          specified in the applicable pricing supplement;

     .    annually - the third Wednesday of the month of each year specified in
          the applicable pricing supplement; and

     .    at Maturity.

     If any interest payment date for any floating rate note, other than an
interest payment date at Maturity, would otherwise be a day that is not a
Business Day, the interest payment date will be postponed to the next succeeding
day that is a Business Day except that in the case of a floating rate note as to
which LIBOR is an applicable Interest Rate Basis, if the Business Day falls in
the next succeeding calendar month, the applicable interest payment date will be
the immediately preceding Business Day.  If the Maturity of a floating rate note
falls on a day that is not a Business Day, the payment of principal, any premium
and interest will be made on the next succeeding Business Day, and no additional
interest will accrue in respect of the payment made on that next succeeding
Business Day.

     All percentages resulting from any calculation on floating rate notes will
be rounded to the nearest one hundred-thousandth of a percentage point, with
five one-millionths of a percentage point rounded upwards. For example,
9.876545%, or .09876545, would be rounded to 9.87655%, or .0987655.  All dollar
amounts used in or resulting from any calculation on floating rate notes will be
rounded to the nearest cent with one-half cent being rounded upward.

     Interest payments on floating rate notes will equal the amount of interest
accrued from and including the immediately preceding interest payment date with
respect to which interest has been paid or from and including the date of issue,
if no interest has been paid, to but excluding the related interest payment date
or Maturity.

                                      S-12
<PAGE>

     With respect to each floating rate note, accrued interest is calculated by
multiplying its principal amount by an accrued interest factor.  The accrued
interest factor is computed by adding the interest factor calculated for each
day in the period for which accrued interest is being calculated.

     .    In the case of notes for which the Interest Rate Basis is the CD Rate,
          the Commercial Paper Rate, the Eleventh District Cost of Funds Rate,
          the Federal Funds Rate, LIBOR or the Prime Rate, the interest factor
          for each day will be computed by dividing the interest rate applicable
          to each day by 360.

     .    In the case of notes for which the Interest Rate Basis is the CMT Rate
          or the Treasury Rate, the interest factor for each day will be
          computed by dividing the interest rate applicable to each day by the
          actual number of days in the year.

     .    The interest factor for notes for which the interest rate is
          calculated with reference to two or more Interest Rate Bases will be
          calculated in each period in the same manner as if only the applicable
          Interest Rate Basis specified in the applicable pricing supplement
          applied.

     Interest Determination Dates.  The interest rate applicable to each
interest reset period commencing on the Interest Reset Date with respect to that
interest reset period will be the rate determined as of the applicable "Interest
Determination Date."

     .    The Interest Determination Date with respect to the Federal Funds Rate
          and the Prime Rate will be the Business Day immediately preceding each
          Interest Reset Date.

     .    The Interest Determination Date with respect to the CD Rate, the CMT
          Rate and the Commercial Paper Rate will be the second Business Day
          immediately preceding each Interest Reset Date.

     .    The Interest Determination Date with respect to the Eleventh District
          Cost of Funds Rate will be the last working day of the month
          immediately preceding each Interest Reset Date on which the Federal
          Home Loan Bank of San Francisco publishes the Index, as defined below.

     .    The Interest Determination Date with respect to LIBOR will be the
          second London Business Day preceding each Interest Reset Date.

     .    The Interest Determination Date with respect to the Treasury Rate will
          be the day in the week in which the related Interest Reset Date falls
          on which day Treasury Bills, as defined below, are normally auctioned.
          Treasury Bills are normally sold at auction on Monday of each week,
          unless that day is a legal holiday, in which case the auction is
          normally held on the following Tuesday, except that the auction may be
          held on the preceding Friday; provided, however, that if an auction is
          held on the Friday of the week preceding the related Interest Reset
          Date, the related Interest Determination Date will be the preceding
          Friday.

     .    The Interest Determination Date pertaining to a floating rate note the
          interest rate of which is determined with reference to two or more
          Interest Rate Bases will be the latest Business Day that is at least
          two Business Days before the applicable Interest Reset Date for the
          applicable floating rate note on which each Interest Reset Basis is
          determinable.

     Calculation Date.  Unless otherwise provided in the applicable pricing
supplement, Bank One Trust Company, N.A. will be the calculation agent.  Upon
the request of the holder of any floating rate note, the calculation agent will
provide the interest rate then in effect and, if determined, the interest rate
that will

                                      S-13
<PAGE>

become effective as a result of a determination made for the next Interest Reset
Date with respect to that floating rate note. Unless otherwise specified in the
applicable pricing supplement, the calculation date, if applicable, pertaining
to any Interest Determination Date will be the earlier of:

     .    the tenth calendar day after the applicable Interest Determination
          Date, or, if the tenth calendar day is not a Business Day, the next
          succeeding Business Day or

     .    the Business Day immediately preceding the applicable Interest Payment
          Date or Maturity, as the case may be.

     CD Rate.  CD Rate Notes will bear interest at the rates, calculated with
reference to the CD Rate and any Spread or Spread Multiplier specified in the
applicable CD Rate Notes and in any applicable pricing supplement.

     "CD Rate" means:

     (1)  the rate on the applicable Interest Determination Date for negotiable
          United States dollar certificates of deposit having the Index Maturity
          specified in the applicable pricing supplement published in H.15(519),
          as defined below, under the caption "CDs (secondary market)", or

     (2)  if the rate referred to in clause (1) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date for negotiable United
          States dollar certificates of deposit of the Index Maturity specified
          in the applicable pricing supplement as published in H.15 Daily
          Update, as defined below, or other recognized electronic source used
          for the purpose of displaying the applicable rate, under the caption
          "CDs (secondary market)", or

     (3)  if the rate referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the arithmetic mean of the secondary market
          offered rates as of 10:00 A.M., New York City time, on the applicable
          Interest Determination Date, of three leading non-bank dealers in
          negotiable United States dollar certificates of deposit in The City of
          New York (which may include the agents or their affiliates) selected
          by the calculation agent for negotiable United States dollar
          certificates of deposit of major United States money market banks for
          negotiable United States certificates of deposit with a remaining
          maturity closest to the Index Maturity specified in the applicable
          pricing supplement in an amount that is representative for a single
          transaction in that market at that time, or

     (4)  if the dealers so selected by the calculation agent are not quoting as
          mentioned in clause (3), the CD Rate in effect on the applicable
          Interest Determination Date.

     "H.15(519)" means the weekly statistical release designated as H.15(519),
or any successor publication, published by the Board of Governors of the Federal
Reserve System.

     "H.15 Daily Update" means the daily update of H.15(519), available through
the world wide web site of the Board of Governors of the Federal Reserve System
at http://www.bog.frb.fed.us/releases/h15/update, or any successor site or
publication.

     CMT Rate.  CMT Rate Notes will bear interest at the rates, calculated with
reference to the CMT Rate and any Spread or Spread Multiplier specified in the
applicable CMT Rate Notes and in any applicable pricing supplement.

                                      S-14
<PAGE>

     "CMT Rate" means:

     (1)  if CMT Telerate Page 7051 is specified in the applicable pricing
          supplement:

          (a)  the percentage equal to the yield for United States Treasury
               securities at "constant maturity" having the Index Maturity
               specified in the applicable pricing supplement as published in
               H.15(519) under the caption "Treasury Constant Maturities", as
               the yield is displayed on Bridge Telerate, Inc. (or any successor
               service) on page 7051 (or any other page as may replace the
               specified page on that service) ("Telerate Page 7051"), for the
               particular Interest Determination Date, or

          (b)  if the rate referred to in clause (a) does not so appear on
               Telerate Page 7051, the percentage equal to the yield for United
               States Treasury securities at "constant maturity" having the
               particular Index Maturity and for the particular Interest
               Determination Date as published in H.15(519) under the caption
               "Treasury Constant Maturities", or

          (c)  if the rate referred to in clause (b) does not so appear in
               H.15(519), the rate on the particular Interest Determination Date
               for the period of the particular Index Maturity as may then be
               published by either the Federal Reserve System Board of Governors
               or the United States Department of the Treasury that the
               calculation agent determines to be comparable to the rate which
               would otherwise have been published in H.15(519), or

          (d)  if the rate referred to in clause (c) is not so published, the
               rate on the particular Interest Determination Date calculated by
               the calculation agent as a yield to maturity based on the
               arithmetic mean of the secondary market bid prices at
               approximately 3:30 P.M., New York City time, on that Interest
               Determination Date of three leading primary United States
               government securities dealers in The City of New York (which may
               include the agents or their affiliates) (each, a "Reference
               Dealer"), selected by the calculation agent from five Reference
               Dealers selected by the calculation agent and eliminating the
               highest quotation, or, in the event of equality, one of the
               highest, and the lowest quotation or, in the event of equality,
               one of the lowest, for United States Treasury securities with an
               original maturity equal to the particular Index Maturity, a
               remaining term to maturity no more than 1 year shorter than that
               Index Maturity and in a principal amount that is representative
               for a single transaction in the securities in that market at that
               time, or

          (e)  if fewer than five but more than two of the prices referred to in
               clause (d) are provided as requested, the rate on the particular
               Interest Determination Date calculated by the calculation agent
               based on the arithmetic mean of the bid prices obtained and
               neither the highest nor the lowest of the quotations shall be
               eliminated, or

          (f)  if fewer than three prices referred to in clause (d) are provided
               as requested, the rate on the particular Interest Determination
               Date calculated by the calculation agent as a yield to maturity
               based on the arithmetic mean of the secondary market bid prices
               as of approximately 3:30 P.M., New York City time, on that
               Interest Determination Date of three Reference Dealers selected
               by the calculation agent from five

                                      S-15
<PAGE>

               Reference Dealers selected by the calculation agent and
               eliminating the highest quotation or, in the event of equality,
               one of the highest and the lowest quotation or, in the event of
               equality, one of the lowest, for United States Treasury
               securities with an original maturity greater than the particular
               Index Maturity, a remaining term to maturity closest to that
               Index Maturity and in a principal amount that is representative
               for a single transaction in the securities in that market at that
               time, or

          (g)  if fewer than five but more than two prices referred to in clause
               (f) are provided as requested, the rate on the particular
               Interest Determination Date calculated by the calculation agent
               based on the arithmetic mean of the bid prices obtained and
               neither the highest nor the lowest of the quotations will be
               eliminated, or

          (h)  if fewer than three prices referred to in clause (f) are provided
               as requested, the CMT Rate in effect on the particular Interest
               Determination Date.

     (2) if CMT Telerate Page 7052 is specified in the applicable pricing
         supplement:

          (a)  the percentage equal to the one-week or one-month, as specified
               in the applicable pricing supplement, average yield for United
               States Treasury securities at "constant maturity" having the
               Index Maturity specified in the applicable pricing supplement as
               published in H.15(519) opposite the caption "Treasury Constant
               Maturities", as the yield is displayed on Bridge Telerate, Inc.
               (or any successor service) (on page 7052 or any other page as may
               replace the specified page on that service) ("Telerate Page
               7052"), for the week or month, as applicable, ended immediately
               preceding the week or month, as applicable, in which the
               particular Interest Determination Date falls, or

          (b)  if the rate referred to in clause (a) does not so appear on
               Telerate Page 7052, the percentage equal to the one-week or one-
               month, as specified in the applicable pricing supplement, average
               yield for United States Treasury securities at "constant
               maturity" having the particular Index Maturity and for the week
               or month, as applicable, preceding the particular Interest
               Determination Date as published in H.15(519) opposite the caption
               "Treasury Constant Maturities," or

          (c)  if the rate referred to in clause (b) does not so appear in
               H.15(519), the one-week or one-month, as specified in the
               applicable pricing supplement, average yield for United States
               Treasury securities at "constant maturity" having the particular
               Index Maturity as otherwise announced by the Federal Reserve Bank
               of New York for the week or month, as applicable, ended
               immediately preceding the week or month, as applicable, in which
               the particular Interest Determination Date falls, or

          (d)  if the rate referred to in clause (c) is not so published, the
               rate on the particular Interest Determination Date calculated by
               the calculation agent as a yield to maturity based on the
               arithmetic mean of the secondary market bid prices at
               approximately 3:30 P.M., New York City time, on that Interest
               Determination Date of three Reference Dealers selected by the
               calculation agent from five Reference Dealers selected by the
               calculation agent and eliminating the highest quotation, or, in
               the event of equality, one of the highest, and the lowest
               quotation or, in the event of equality, one of the lowest, for
               United States Treasury securities with an original maturity equal
               to the particular Index Maturity, a remaining term to maturity no
               more

                                      S-16
<PAGE>

               than 1 year shorter than that Index Maturity and in a
               principal amount that is representative for a single transaction
               in the securities in that market at that time, or

          (e)  if fewer than five but more than two of the prices referred to in
               clause (d) are provided as requested, the rate on the particular
               Interest Determination Date calculated by the calculation agent
               based on the arithmetic mean of the bid prices obtained and
               neither the highest nor the lowest of the quotations shall be
               eliminated, or

          (f)  if fewer than three prices referred to in clause (d) are provided
               as requested, the rate on the particular Interest Determination
               Date calculated by the calculation agent as a yield to maturity
               based on the arithmetic mean of the secondary market bid prices
               as of approximately 3:30 P.M., New York City time, on that
               Interest Determination Date of three Reference Dealers selected
               by the calculation agent from five Reference Dealers selected by
               the calculation agent and eliminating the highest quotation or,
               in the event of equality, one of the highest and the lowest
               quotation or, in the event of equality, one of the lowest, for
               United States Treasury securities with an original maturity
               greater than the particular Index Maturity, a remaining term to
               maturity closest to that Index Maturity and in a principal amount
               that is representative for a single transaction in the securities
               in that market at the time, or

          (g)  if fewer than five but more than two prices referred to in clause
               (f) are provided as requested, the rate on the particular
               Interest Determination Date calculated by the calculation agent
               based on the arithmetic mean of the bid prices obtained and
               neither the highest or the lowest of the quotations will be
               eliminated, or

          (h)  if fewer than three prices referred to in clause (f) are provided
               as requested, the CMT Rate in effect on that Interest
               Determination Date.

     If two United States Treasury securities with an original maturity greater
than the Index Maturity specified in the applicable pricing supplement have
remaining terms to maturity equally close to the particular Index Maturity, the
quotes for the United States Treasury security with the shorter original
remaining term to maturity will be used.

     Commercial Paper Rate.  Commercial Paper Rate Notes will bear interest at
the rates, calculated with reference to the Commercial Paper Rate and any Spread
or Spread Multiplier specified in the applicable Commercial Paper Rate Notes and
in any applicable pricing supplement.

     "Commercial Paper Rate" means:

     (1)  the Money Market Yield, as defined below, on the applicable Interest
          Determination Date of the rate for commercial paper having the Index
          Maturity specified in the applicable pricing supplement as published
          in H.15(519) under the caption "Commercial Paper-Nonfinancial", or

     (2)  if the rate referred to in clause (1) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the Money
          Market Yield of the rate on the applicable Interest Determination Date
          for commercial paper having the Index Maturity specified in the
          applicable pricing supplement published in H.15 Daily Update, or such
          other recognized electronic source used for the purpose of displaying
          the applicable rate, under the caption "Commercial Paper-
          Nonfinancial", or

                                      S-17
<PAGE>

     (3)  if the rate referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the Money Market Yield of the arithmetic mean of
          the offered rates at approximately 11:00 A.M., New York City time, on
          the applicable Interest Determination Date of three leading dealers of
          United States dollar commercial paper in The City of New York, which
          may include the agents or their affiliates, selected by the
          calculation agent for commercial paper having the Index Maturity
          specified in the applicable pricing supplement placed for industrial
          issuers whose bond rating is "Aa", or the equivalent, from a
          nationally recognized statistical rating organization, or

     (4)  if the dealers so selected by the calculation agent are not quoting as
          mentioned in clause (3), the Commercial Paper Rate in effect on the
          applicable Interest Determination Date.

     "Money Market Yield" means a yield calculated in accordance with the
following formula and expressed as a percentage:

                    Money Market Yield =      D x 360       x   100
                                         ------------------
                                          360 - ( D  x  M )

where "D" refers to the applicable per annum rate for commercial paper quoted on
a bank discount basis and expressed as a decimal, and "M" refers to the actual
number of days in the interest period for which interest is being calculated.

     Eleventh District Cost of Funds Rate.  Eleventh District Cost of Funds Rate
Notes will bear interest at the rates, calculated with reference to the Eleventh
District Cost of Funds Rate and any Spread or Spread Multiplier specified in the
applicable Eleventh District Cost of Funds Rate Notes and in any applicable
pricing supplement.

     "Eleventh District Cost of Funds Rate" means:

     (1)  the rate equal to the monthly weighted average cost of funds for the
          calendar month immediately preceding the month in which the applicable
          Interest Determination Date falls as set forth under the caption "11th
          District" on the display on Bridge Telerate, Inc. or any successor
          service on page 7058 or any other page as may replace the specified
          page on that service ("Telerate Page 7058") as of 11:00 A.M., San
          Francisco time, on the applicable Interest Determination Date, or

     (2)  if the rate referred to in clause (1) does not so appear on Telerate
          Page 7058, the monthly weighted average cost of funds paid by member
          institutions of the Eleventh Federal Home Loan Bank District that was
          most recently announced (the "Index") by the Federal Home Loan Bank of
          San Francisco as the cost of funds for the calendar month immediately
          preceding the applicable Interest Determination Date, or

     (3)  if the Federal Home Loan Bank of San Francisco fails to announce the
          Index on or prior to the applicable Interest Determination Date for
          the calendar month immediately preceding the applicable Interest
          Determination Date, the Eleventh District Cost of Funds Rate in effect
          on the applicable Interest Determination Date.

     Federal Funds Rate.  Federal Funds Rate Notes will bear interest at the
rates, calculated with reference to the Federal Funds Rate and any Spread or
Spread Multiplier specified in the applicable Federal Funds Rate Notes and in
any applicable pricing supplement.

                                      S-18
<PAGE>

     "Federal Funds Rate" means:

     (1) the rate on the applicable Interest Determination Date for United
         States dollar federal funds as published in H.15(519) under the caption
         "Federal Funds (Effective)" and displayed on Bridge Telerate, Inc. or
         any successor service on page 120 or any other page as may replace the
         specified page on that service ("Telerate Page 120"), or

     (2) if the rate referred to in clause (1) does not so appear on Telerate
         Page 120 or is not so published by 3:00 P.M., New York City time, on
         the related calculation date, the rate on the applicable Interest
         Determination Date for United States dollar federal funds published in
         H.15 Daily Update, or other recognized electronic source used for the
         purpose of displaying the applicable rate, under the caption "Federal
         Funds (Effective Rate)", or

     (3) if the rate referred to in clause (2) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the rate on the
         applicable Interest Determination Date calculated by the calculation
         agent as the arithmetic mean of the rates for the last transaction in
         overnight United States dollar federal funds arranged by three leading
         brokers of United States dollar federal funds transactions in The City
         of New York, which may include the agents or their affiliates, selected
         by the calculation agent before 9:00 A.M., New York City time, on the
         applicable Interest Determination Date, or

     (4) if the brokers so selected by the calculation agent are not quoting as
         mentioned in clause (3), the Federal Funds Rate in effect on the
         applicable Interest Determination Date.

     LIBOR. LIBOR Notes will bear interest at the rates, calculated with
reference to LIBOR and any Spread or Spread Multiplier specified in the
applicable LIBOR Notes and in any applicable pricing supplement.

     "LIBOR" means:

     (1) if "LIBOR Telerate" is specified in the applicable pricing supplement
         or if neither "LIBOR Reuters" nor "LIBOR Telerate" is specified in the
         applicable pricing supplement as the method for calculating LIBOR, the
         rate for deposits in the LIBOR Currency having the Index Maturity
         specified in the applicable pricing supplement, commencing on the
         related Interest Reset Date, that appears on the LIBOR Page as of 11:00
         A.M., London time, on the applicable Interest Determination Date, or

     (2) if "LIBOR Reuters" is specified in the applicable pricing supplement,
         the arithmetic mean of the offered rates, calculated by the calculation
         agent, or the offered rate, if the LIBOR Page by its terms provides
         only for a single rate, for deposits in the LIBOR Currency having the
         Index Maturity specified in the applicable pricing supplement,
         commencing on the related Interest Reset Date, that appear or appears,
         as the case may be, on the LIBOR Page as of 11:00 A.M., London time, on
         the applicable Interest Determination Date, or

     (3) if fewer than two offered rates appear, or no rate appears, as the case
         may be, on the applicable Interest Determination Date on the LIBOR Page
         as specified in clause (1) or (2), as applicable, the rate calculated
         by the calculation agent of at least two offered quotations obtained by
         the calculation agent after requesting the principal London offices of
         each of four major reference banks (which may include affiliates of the
         Agents), in the London interbank market to provide the

                                     S-19
<PAGE>

         calculation agent with its offered quotation for deposits in the LIBOR
         Currency for the period of the Index Maturity specified in the
         applicable pricing supplement, commencing on the related Interest Reset
         Date, to prime banks in the London interbank market at approximately
         11:00 A.M., London time, on the applicable Interest Determination Date
         and in a principal amount that is representative for a single
         transaction in the applicable LIBOR Currency in that market at that
         time, or

     (4) if fewer than two offered quotations referred to in clause (3) are
         provided as requested, the rate calculated by the calculation agent as
         the arithmetic mean of the rates quoted at approximately 11:00 A.M., in
         the applicable Principal Financial Center, on the applicable Interest
         Determination Date by three major banks (which may include affiliates
         of the Agents), in that Principal Financial Center selected by the
         calculation agent for loans in the LIBOR Currency to leading European
         banks, having the Index Maturity specified in the applicable pricing
         supplement and in a principal amount that is representative for a
         single transaction in the applicable LIBOR Currency in that market at
         that time, or

     (5) if the banks so selected by the calculation agent are not quoting as
         mentioned in clause (4), LIBOR in effect on the applicable Interest
         Determination Date.


     "LIBOR Currency" means the currency specified in the applicable pricing
supplement as to which LIBOR shall be calculated or, if no currency is specified
in the applicable pricing supplement, United States dollars.

     "LIBOR Page" means either:

         if "LIBOR Reuters" is specified in the applicable pricing supplement,
         the display on the Reuter Monitor Money Rates Service (or any successor
         service) on the page specified in the applicable pricing supplement (or
         any other page as may replace that page on that service) for the
         purpose of displaying the London interbank rates of major banks for the
         LIBOR Currency; or

         if "LIBOR Telerate" is specified in the applicable pricing supplement
         or neither "LIBOR Reuters" nor "LIBOR Telerate" is specified in the
         applicable pricing supplement as the method for calculating LIBOR, the
         display on Bridge Telerate, Inc. (or any successor service) on the page
         specified in the applicable pricing supplement (or any other page as
         may replace such page on such service) for the purpose of displaying
         the London interbank rates of major banks for the LIBOR Currency.

     Prime Rate. Prime Rate Notes will bear interest at the rates, calculated
with reference to the Prime Rate and any Spread or Spread Multiplier specified
in the applicable Prime Rate Notes and in any applicable pricing supplement.

     "Prime Rate" means:

     (1) the rate on the applicable Interest Determination Date as published in
         H.15(519) under the caption "Bank Prime Loan", or

                                     S-20
<PAGE>

     (2) if the rate referred to in clause (1) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the rate on the
         applicable Interest Determination Date as published in H.15 Daily
         Update, or such other recognized electronic source used for the purpose
         of displaying the applicable rate, under the caption "Bank Prime Loan",
         or

     (3) if the rate referred to in clause (2) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the rate on the
         applicable Interest Determination Date calculated by the calculation
         agent as the arithmetic mean of the rates of interest publicly
         announced by each bank that appears on the Reuters Screen US PRIME 1
         Page, as defined below, as the applicable bank's prime rate or base
         lending rate as of 11:00 A.M., New York City time, on that Interest
         Determination Date, or

     (4) if fewer than four rates referred to in clause (3) are so published by
         3:00 P.M., New York City time, on the related calculation date, the
         rate calculated by the calculation agent on the applicable Interest
         Determination Date as the arithmetic mean of the prime rates or base
         lending rates quoted on the basis of the actual number of days in the
         year divided by a 360-day year as of the close of business on the
         applicable Interest Determination Date by three major banks, which may
         include affiliates of the agents, in The City of New York selected by
         the calculation agent, or

     (5) if the banks selected by the calculation agent are not quoting as
         mentioned in clause (4), the Prime Rate in effect on the applicable
         Interest Determination Date.

     "Reuters Screen US PRIME 1 Page" means the display on the Reuter Monitor
Money Rates Service or any successor service on the "US PRIME 1" page or any
other page as may replace that page on that service for the purpose of
displaying prime rates or base lending rates of major United States banks.

     Treasury Rate. Treasury Rate Notes will bear interest at the rates,
calculated with reference to the Treasury Rate and any Spread or Spread
Multiplier specified in the applicable Treasury Rate Notes and in any applicable
pricing supplement.

     "Treasury Rate" means:

     (1) the rate from the auction held on the applicable Interest Determination
         Date (the "Auction") of direct obligations of the United States
         ("Treasury Bills") having the Index Maturity specified in the
         applicable pricing supplement under the caption "INVESTMENT RATE" on
         the display on Bridge Telerate, Inc. or any successor service on page
         56 or any other page as may replace that page on that service
         ("Telerate Page 56") or page 57 or any other page as may replace page
         57 on that service ("Telerate Page 57"), or

     (2) if the rate referred to in clause (1) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the Bond
         Equivalent Yield, as defined below, of the rate for the applicable
         Treasury Bills as published in H.15 Daily Update, or another recognized
         electronic source used for the purpose of displaying the applicable
         rate, under the caption "U.S. Government Securities/Treasury
         Bills/Auction High", or

     (3) if the rate referred to in clause (2) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the Bond
         Equivalent Yield of the auction rate of the applicable Treasury Bills
         as announced by the United States Department of the Treasury, or

                                     S-21
<PAGE>

     (4) if the rate referred to in clause (3) is not so announced by the United
         States Department of the Treasury, or if the Auction is not held, the
         Bond Equivalent Yield of the rate on the applicable Interest
         Determination Date of Treasury Bills having the Index Maturity
         specified in the applicable Pricing Supplement as published in
         H.15(519) under the caption "U.S. Government Securities/Treasury
         Bills/Secondary Market", or

     (5) if the rate referred to in clause (4) is not so published by 3:00 P.M.,
         New York City time, on the related calculation date, the rate on the
         applicable Interest Determination Date of Treasury Bills having the
         Index Maturity specified in the applicable pricing supplement as
         published in H.15 Daily Update, or another recognized electronic source
         used for the purpose of displaying the applicable rate, under the
         caption "U.S. Government Securities/Treasury Bills/Secondary Market",
         or

     (6) if the rate referred to in clause (5) is not so published by 3:00 P.M.,
         New York City time, on the related Calculation Date, the rate on the
         applicable Interest Determination Date calculated by the calculation
         agent as the Bond Equivalent Yield of the arithmetic mean of the
         secondary market bid rates, as of approximately 3:30 P.M., New York
         City time, on the applicable Interest Determination Date, of three
         primary United States government securities dealers, which may include
         the agents or their affiliates, selected by the calculation agent, for
         the issue of Treasury Bills with a remaining maturity closest to the
         Index Maturity specified in the applicable pricing supplement, or

     (7) if the dealers so selected by the calculation agent are not quoting as
         mentioned in clause (6), the Treasury Rate in effect on the applicable
         Interest Determination Date.

     "Bond Equivalent Yield" means a yield calculated in accordance with the
following formula and expressed as a percentage:

                Bond Equivalent Yield =      D x N         x 100
                                        -----------------
                                        360 - ( D  x  M )

where "D" refers to the applicable per annum rate for Treasury Bills quoted on a
bank discount basis and expressed as a decimal, "N" refers to 365 or 366, as the
case may be, and "M" refers to the actual number of days in the interest period
for which interest is being calculated.

Other/Additional Provisions; Addenda

     Any provisions with respect to an issue of notes, including the
determination of one or more Interest Rate Bases, the specification of one or
more Interest Rate Bases, the calculation of the interest rate applicable to a
floating rate note, the applicable interest payment dates, the stated maturity
date, any redemption or repayment provisions or any other matter relating to the
applicable notes may be modified as specified under "Other/Additional
Provisions" on the face of the applicable notes or in an Addendum relating to
the applicable notes, if so specified on the face of the applicable notes and in
the applicable pricing supplement.

Remarketed Notes

     From time to time, WRIT may offer notes ("Remarketed Notes") bearing
interest initially at the rate and through the date specified in the applicable
pricing supplement (the "Initial Interest Rate Period"). Thereafter, each
Remarketed Note will bear interest at rates established by a remarketing agent
selected by WRIT as specified in the applicable pricing supplement.  If WRIT
issues Remarketed Notes, it will enter into a

                                     S-22
<PAGE>

remarketing agreement with each remarketing agent. Further information
concerning additional terms and provisions of Remarketed Notes will be specified
in the applicable pricing supplement.

Discount Notes

     WRIT may from time to time offer notes ("Discount Notes") that have an
Issue Price (as specified in the applicable pricing supplement) that is less
than 100% of the principal amount thereof (i.e. par) by more than a percentage
equal to the product of 0.25% and the number of full years to the stated
maturity date. Discount Notes may not bear any interest currently or may bear
interest at a rate that is below market rates at the time of issuance.  The
difference between the issue price of a Discount Note and par is referred to as
the "Discount."  In the event of redemption, repayment or acceleration of
maturity of a Discount Note, the amount payable to the Holder of a Discount Note
will be equal to the sum of:

       o  the issue price (increased by any accruals of Discount) and, in the
          event of any redemption of the applicable Discount Note, if
          applicable, multiplied by the Initial Redemption Percentage (as
          adjusted by the Annual Redemption Percentage Reduction, if
          applicable); and

       o  any unpaid interest accrued on the Discount Notes to the date of the
          redemption, repayment or acceleration of maturity, as the case may be.

For purposes of determining the amount of Discount that has accrued as of any
date on which a redemption, repayment or acceleration of maturity occurs for a
Discount Note, a Discount will be accrued using a constant yield method.  The
constant yield will be calculated using a 30-day month, 360-day year convention,
a compounding period that, except for the Initial Period (as defined below),
corresponds to the shortest period between interest payment dates for the
applicable Discount Note (with ratable accruals within a compounding period), a
coupon rate equal to the initial coupon rate applicable to the Discount Note and
an assumption that the maturity of a Discount Note will not be accelerated.  If
the period from the date of issue to the first interest payment date for a
Discount Note (the "Initial Period") is shorter than the compounding period for
the Discount Note, a proportionate amount of the yield for an entire compounding
period will be accrued.  If the Initial Period is longer than the compounding
period, then the period will be divided into a regular compounding period and a
short period with the short period being treated as provided in the preceding
sentence.  The accrual of the applicable Discount may differ from the accrual of
original issue discount for purposes of the Internal Revenue Code of 1986, as
amended (the "Code"), certain Discount Notes may not be treated as having
original issue discount within the meaning of the Code, and Notes other than
Discount Notes may be treated as issued with original issue discount for federal
income tax purposes.  See "United States Federal Income Taxation."

Amortizing Notes

     WRIT may from time to time offer notes ("Amortizing Notes"), with amounts
of principal and interest payable in installments over the term of the notes.
Unless otherwise specified in the applicable pricing supplement, interest on
each Amortizing Note will be computed on the basis of a 360-day year of twelve
30-day months.  Payments with respect to Amortizing Notes will be applied first
to interest due and payable on the Amortizing Notes and then to the reduction of
the unpaid principal amount of the Amortizing Notes. Further information
concerning additional terms and conditions of any issue of Amortizing Notes will
be provided in the applicable pricing supplement.  A table setting forth
repayment information with respect to each Amortizing Note will be included in
the applicable note and in the applicable  pricing supplement.

Linked Notes

                                     S-23
<PAGE>

     WRIT may from time to time offer notes ("Linked Notes") the principal value
of which at Maturity will be determined by reference to:

     (a)  one or more equity or debt securities, including, but not limited to,
          the price or yield of the securities,

     (b)  any statistical measure of economic or financial performance,
          including, but not limited to, any currency, consumer price or
          mortgage index, or

     (c)  the price or value of any commodity or any other item or index or any
          combination,

(collectively, the "Linked Securities"). The payment or delivery of any
consideration on any Linked Note at Maturity will be determined by the decrease
or increase, as applicable, in the price or value of the applicable Linked
Securities. The terms of and any additional considerations, including any
material tax consequences, relating to any Linked Notes will be described in the
applicable pricing supplement.

Book-Entry Notes

     Description of the Global Securities

     Upon issuance, all notes in book-entry form having the same date of issue,
Maturity and otherwise having identical terms and provisions will be represented
by one or more fully registered global notes (the "Global Notes").  Each Global
Note will be deposited with, or on behalf of, The Depository Trust Company, as
depository, and registered in the name of the depository or a nominee of the
depository.  Unless and until it is exchanged in whole or in part for notes in
certificated form, no Global Note may be transferred except as a whole (a) by
the depository to a nominee of the depository, (b) by a nominee of the
depository to the depository or another nominee of the depository or (c) by the
depository or any nominee to a successor of the depository or a nominee of the
successor.

     DTC Procedures

     The depository will act as securities depository for the notes in book-
entry form.  The notes in book-entry form will be issued as fully registered
securities registered in the name of Cede & Co., the depository's partnership
nominee.  One fully registered Global Note will be issued for each issue of
notes in book-entry form, each in the aggregate principal amount of the issue,
and will be deposited with the depository.  If, however, the aggregate principal
amount of any issue exceeds $400,000,000, one Global Note will be issued with
respect to each $400,000,000 of principal amount and an additional Global Note
will be issued with respect to any remaining principal amount of the issue.

                                     S-24
<PAGE>

     The depository is a limited-purpose trust company organized under the New
York Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under the provisions of Section 17A of the Exchange Act.  The
depository holds securities that its participants deposit with the depository.
The depository also facilitates the settlement among participants of securities
transactions, such as transfers and pledges, in deposited securities through
electronic computerized book-entry changes in participants' accounts,
eliminating the need for physical movement of securities certificates.  Direct
participants of the depository include securities brokers and dealers (including
the Agents), banks, trust companies, clearing corporations and other
organizations.  The depository is owned by a number of its direct participants
and by the New York Stock Exchange, Inc., the American Stock Exchange, Inc., and
the National Association of Securities Dealers, Inc.  Access to the depository's
system is also available to others such as securities brokers and dealers
(including the agents), banks and trust companies that clear through or maintain
a custodial relationship with a direct participant, either directly or
indirectly. The rules applicable to the depository and its participants are on
file with the SEC.

     Purchasers of notes in book-entry form under the depository's system must
be made by or through direct participants, which will receive a credit for those
notes in book-entry form on the depository's records. The ownership interest of
each actual purchaser of each note in book-entry form represented by a Global
Note is, in turn, to be recorded on the records of direct participants and
indirect participants. Beneficial owners in book-entry form will not receive
written confirmation from the depository of their purchase, but beneficial
owners are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which the beneficial owner entered
into the transaction.  Transfers of ownership interests in a Global Note
representing notes in book-entry form are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.  Beneficial
owners of a Global Note representing notes in book-entry form will not receive
notes in certificated form representing their ownership interests unless use of
the book-entry system for such notes in book-entry form is discontinued.

     To facilitate subsequent transfers, all Global Notes representing notes in
book-entry form that are deposited with, or on behalf of, the depository are
registered in the name of the depository's nominee, Cede & Co.  The deposit of
Global Notes with, or on behalf of, the depository and their registration in the
name of Cede & Co. effect no change in beneficial ownership.  The depository has
no knowledge of the actual beneficial owners of the Global Notes representing
the notes in book-entry form; the depository's records reflect only the identity
of the direct participants to whose accounts the notes in book-entry form are
credited, which may or may not be the beneficial owners.  The participants will
remain responsible for keeping account of their holdings on behalf of their
customers.

     Conveyance of notices and other communications by the depository to direct
participants, by direct participants to indirect participants, and by direct
participants and indirect participants

                                     S-25
<PAGE>

to beneficial owners, will be governed by arrangements among them, subject to
any statutory or regulatory requirements as may be in effect from time to time.

     Neither the depository nor Cede & Co. will consent or vote with respect to
the Global Notes representing the notes in book-entry form.  Under its usual
procedures, the depository mails an omnibus proxy to WRIT as soon as possible
after the applicable record date.  The omnibus proxy assigns Cede & Co.'s
consenting or voting rights to those direct participants, identified in a
listing attached to the omnibus proxy, to whose accounts the notes in book-entry
form are credited on the applicable record date.

     WRIT will make principal, any premium and interest payments on the Global
Notes representing the notes in book-entry form in immediately available funds
to the depository.  The depository's practice is to credit direct participants'
accounts on the applicable payment date in accordance with their holdings shown
on the depository's records unless the depository has reason to believe that it
will not receive payment on the applicable payment date.  Payments by
participants to beneficial owners will be governed by standing instructions and
customary practices, as is the case with securities held for the accounts of
customers in bearer form or registered in "street name," and will be the
responsibility of the applicable participant and not of the depository, the
indenture trustee or WRIT, subject to any statutory or regulatory requirements
as may be in effect from time to time.  Payment of principal, any premium and
interest to the depository is the responsibility of WRIT and the indenture
trustee.  Disbursement of payments to direct participants will be the
responsibility of the depository.  Disbursement of payments to the beneficial
owners will be the responsibility of direct participants and indirect
participants.

     If applicable, redemption notices will be sent to Cede & Co.  If less than
all of the notes in book-entry form of like tenor and terms are being redeemed,
the depository's practice is to determine by lot the amount of the interest of
each direct participant in the issue to be redeemed.

     A beneficial owner must give notice of any option to elect to have its
notes in book-entry form repaid by WRIT, through its participant, to the
indenture trustee, and will effect delivery of the applicable notes in book-
entry form by causing the direct participant to transfer the participant's
interest in the Global Note notes in book-entry form, on the depository's
records, to the indenture trustee.

     The depository may discontinue providing its services as securities
depository with respect to the notes in book-entry form at any time by giving
reasonable notice to WRIT or the indenture trustee.  If a successor securities
depository is not obtained, notes in certificated form are required to be
printed and delivered.

     WRIT may decide to discontinue use of the system of book-entry transfers
through the depository or a successor securities depository.  In that event,
notes in certificated form will be printed and delivered.

                                     S-26
<PAGE>

     The laws of some states may require that some purchasers of securities take
physical delivery of securities in certificated form.  These limits and laws may
impair the ability to own, transfer or pledge beneficial interests in Global
Notes.

     So long as the depository, or its nominee, is the registered owner of a
Global Note, the depository or its nominee, as the case may be, will be
considered the sole owner or holder of the notes represented by such Global Note
for all purposes under the indenture.  Except as described below, beneficial
owners of a Global Note will not be entitled to have the notes represented by a
Global Note registered in their names, will not receive or be entitled to
receive physical delivery of the notes in certificated form and will not be
considered the owners or holders thereof under the indenture.  Accordingly, each
person owning a beneficial interest in a Global Note must rely on the procedures
of the depository and, if that person is not a participant, on the procedures of
the participant through which that person owns its interest, to exercise any
rights of a holder under the indenture.  WRIT understands that under existing
industry practices, if WRIT requests any action of holders or if an owner of a
beneficial interest in a Global Note desires to give or take any action that a
holder is entitled to give or take under the indenture, the depository would
authorize the participants holding the relevant beneficial interests to give or
take the desired action, and the participants would authorize beneficial owners
owning through the participants to give or take the desired action or would
otherwise act upon the instructions of beneficial owners.

     Exchange for Notes in Certificated Form

     If:

          (a)  the depository is at any time unwilling or unable to continue as
     depository and a successor depository is not appointed by WRIT within 60
     days,

          (b)  WRIT executes and delivers to the indenture trustee an order to
     the effect that the Global Notes will be exchangeable, or

          (c)  an Event of Default has occurred and is continuing with respect
to the notes,

the Global Note or Global Notes will be exchangeable for notes in certificated
form of like tenor and of an equal aggregate principal amount, in denominations
of $1,000 and integral multiples of $1,000.  The certificated notes will be
registered in the name or names as the depository instructs the indenture
trustee.  We expect that instructions may be based upon directions received by
the depository from participants with respect to ownership of beneficial
interests in Global Notes.

     The information in this section concerning the depository and the
depository's system has been obtained from the depository and other sources that
WRIT believes are reliable, but WRIT takes no responsibility for the accuracy of
the information.

                     UNITED STATES FEDERAL INCOME TAXATION

                                     S-27
<PAGE>

     The following summary of United States Federal income tax consequences of
the purchase, ownership and disposition of the notes is based upon laws,
regulations, rulings and decisions now in effect, all of which are subject to
change, including changes in effective dates, or possible differing
interpretations.  It deals only with notes held as capital assets and does not
deal with persons in special tax situations, such as financial institutions,
insurance companies, regulated investment companies, dealers in securities or
currencies, persons holding notes as a hedge against currency risks or as a
position in a "straddle" for tax purposes, or persons whose functional currency
is not the United States dollar.  It also does not deal with holders other than
original purchasers, except where otherwise specifically noted.  Persons
considering the purchase of the notes should consult their own tax advisors
concerning the application of United States Federal income tax laws to their
particular situations as well as any consequences of the purchase, ownership and
disposition of the notes arising under the laws of any other taxing
jurisdiction.

     As used in this prospectus supplement, the term "U.S. Holder" means a
beneficial owner of a note that is for United States Federal income tax
purposes:

     (1)  a citizen or resident of the United States,

     (2)  a corporation, including an entity treated as a corporation for United
          States Federal income tax purposes, created or organized in or under
          the laws of the United States, any state of the United States or the
          District of Columbia,

     (3)  a partnership, including an entity treated as a partnership for United
          States Federal income tax purposes, created or organized under the
          laws of the United States, any state of the United States or the
          District of Columbia; however, the Treasury is authorized, but as of
          the date of this prospectus supplement has not provided public notice
          of an intention, to adopt regulations that would provide different
          rules for determining whether partnerships, and entities treated as
          partnerships, formed or created after public notice of the contents of
          the regulations are to be classified as a U.S. Holder,

     (4)  an estate whose income is subject to United States Federal income tax
          regardless of its source,

     (5)  a trust, if a court within the United States is able to exercise
          primary supervision over the administration of the trust and one or
          more United States persons have the authority to control all
          substantial decisions of the trust, or

     (6)  any other person whose income or gain with respect to a note is
          effectively connected with the conduct of a United States trade or
          business.

                                     S-28
<PAGE>

Some trusts not described in clause (5) above in existence on August 20, 1996
that elect to be treated as a United States person will also be a U.S. Holder
for purposes of the following discussion.  As used in this prospectus
supplement, the term "non-U.S. Holder" means a beneficial owner of a note that
is not a U.S. Holder.

U.S. Holders

     Payments of Interest.  Payments of interest on a note will generally be
taxable to a U.S. Holder as ordinary interest income at the time the payments
are accrued or are received, in accordance with the U.S. Holder's regular method
of tax accounting; however, as discussed in the following section, special rules
apply to notes with a maturity of more than one year that are treated for U.S.
Federal income tax purposes as having been issued with original issue discount.

     Original Issue Discount. The following summary is a general discussion of
the United States Federal income tax consequences to U.S. Holders of the
purchase, ownership and disposition of notes issued with original issue
discount, which we refer to as "Discount Notes."  The following summary is based
upon current Treasury regulations, which we refer to as the "OID Regulations,"
under the original issue discount provisions of the Code.

     For United States Federal income tax purposes, original issue discount is
the excess of the stated redemption price at maturity of a note over its issue
price; however, if the excess is less than a de minimis amount, the original
issue discount is deemed to be zero.  For these purposes, a de minimis amount is
generally 1/4 of 1% of the note's stated redemption price at maturity
multiplied by the number of complete years to its maturity from its issue date
or, in the case of a note providing for the payment of any amount other than
"qualified stated interest", as defined below, prior to maturity, multiplied by
the weighted average maturity of the note.  The issue price of each note of an
issue of notes equals the first price at which a substantial amount of the notes
has been sold, ignoring sales to bond houses, brokers, or similar persons or
organizations acting in the capacity of underwriters, placement agents, or
wholesalers.  The stated redemption price at maturity of a note is the sum of
all payments provided by the note other than "qualified stated interest"
payments.  The rules for determining a note's "qualified stated interest" are
different for the Fixed Rate Notes and the Floating Rate Notes, which we refer
to in this Original Issue Discount discussion as "Variable Notes."

     Determining qualified stated interest with respect to a Fixed Rate Note.
     -----------------------------------------------------------------------
In the case of a Fixed Rate Note, "qualified stated interest" generally means
stated interest that is unconditionally payable in cash or property, other than
debt instruments of the issuer, at least annually at a single fixed rate.  For
example, if a Fixed Rate Note provided for interest in some years at the annual
rate of 4% payable annually and in other years at the annual rate of 6% payable
annually, the qualified stated interest would be 4% annually and the amounts by
which the 6% interest payments exceeded interest calculated at 4% would be part
of the stated redemption price at maturity.

                                     S-29
<PAGE>

     Under the general rule, a Fixed Rate Note with an "interest holiday" or a
"teaser rate" would almost always have original issue discount in excess of a de
minimis amount, because only a portion, in the case of a teaser rate, or none,
in the case of an interest holiday, of the stated interest would be qualified
stated interest. To alleviate this problem, the OID Regulations provide a
special rule for determining whether the redemption price at maturity of such a
note exceeds its issue price by more than the de minimis amount. This special
rule applies if (a) all of the stated interest on a note would be qualified
stated interest but for the fact that for one or more accrual periods, the
teaser or holiday period, the interest rate is below the rate applicable for the
remaining term of the note, and (b) under the general rule, the original issue
discount would exceed the de minimis amount. In those cases, for purposes of
applying the de minimis test, the note's stated redemption price at maturity is
deemed to be its issue price plus the greater of (a) the additional interest
that would have been required to have been paid during the holiday or teaser
period in order for all stated interest to be qualified stated interest or (b)
the excess of the note's stated principal amount over its issue price.

     Determining qualified stated interest with respect to a Variable Note.
     ---------------------------------------------------------------------
Under the OID Regulations, Variable Notes are classified as either variable rate
debt instruments or as contingent payment debt instruments. Special rules apply
to contingent payment debt instruments and are described later in this
discussion under the heading "contingent payment debt instruments."

     Under the OID Regulations, a Variable Note will qualify as a "variable rate
debt instrument" if

     .  its issue price does not exceed the total noncontingent principal
        payments due under the Variable Note by more than a specified de minimis
        amount and

     .  it provides for stated interest, paid or compounded at least annually,
        at current values of:

        .    one or more qualified floating rates,

        .    a single fixed rate and one or more qualified floating rates,

        .    a single objective rate, or

        .    a single fixed rate and a single objective rate that is a
             qualified inverse floating rate.

     A "qualified floating rate" is any variable rate where variations in the
value of the rate can reasonably be expected to measure contemporaneous
variations in the cost of newly borrowed funds in the currency in which the
Variable Note is denominated. Although a multiple of a qualified floating rate
will generally not itself constitute a qualified floating rate, a variable rate
equal to the product of a qualified floating rate and a fixed multiple that is
greater than .65 but

                                      S-30
<PAGE>

not more than 1.35 will constitute a qualified floating rate. A variable rate
equal to the product of a qualified floating rate and a fixed multiple that is
greater than .65 but not more than 1.35, increased or decreased by a fixed rate,
will also constitute a qualified floating rate. In addition, under the OID
Regulations, two or more qualified floating rates that can reasonably be
expected to have approximately the same values throughout the term of the
Variable Note - e.g., two or more qualified floating rates with values within 25
basis points of each other as determined on the Variable Note's issue date -
will be treated as a single qualified floating rate.

     Notwithstanding the foregoing, a variable rate that would otherwise
constitute a qualified floating rate but which is subject to one or more
restrictions such as a restriction on the maximum stated interest rate, i.e., a
cap, or the minimum stated interest rate, i.e., a floor, may, under some
circumstances, fail to be treated as a qualified floating rate under the OID
Regulations unless the cap or floor is fixed throughout the term of the note.

     An "objective rate" is a rate that is not itself a qualified floating rate
but which is determined using a single fixed formula that is based on objective
financial or economic information. A rate will not qualify as an objective rate
if it is based on information that is within the control of the issuer or a
related party or that is unique to the circumstances of the issuer or a related
party, such as dividends, profits, or the value of the issuer's stock. However,
a rate does not fail to be an objective rate merely because it is based on the
credit quality of the issuer.

     A "qualified inverse floating rate" is any objective rate where the rate is
equal to a fixed rate minus a qualified floating rate, as long as variations in
the rate can reasonably be expected to inversely reflect contemporaneous
variations in the qualified floating rate.

     The OID Regulations also provide that (a) if a Variable Note provides for
stated interest at a fixed rate for an initial period of one year or less
followed by a variable rate that is either a qualified floating rate or an
objective rate and (b) if the variable rate on the Variable Note's issue date is
intended to approximate the fixed rate - e.g., the value of the variable rate on
the issue date does not differ from the value of the fixed rate by more than 25
basis points - then the fixed rate and the variable rate together will
constitute either a single qualified floating rate or objective rate, as the
case may be.

     If a Variable Note is a variable rate debt instrument and has a single
qualified floating rate or a single objective rate and the interest is payable
at least annually in cash or property other than debt instruments of the issuer,
all stated interest is qualified stated interest. Accordingly, the Variable Note
will only have original issue discount if its stated principal amount exceeds
its issue price by more than a de minimis amount. If the Variable Note does have
original issue discount, then, for purposes of determining the amount of
original issue discount applicable to a particular tax period, the Variable Note
is converted to an "equivalent" fixed rate debt instrument. This is done by
substituting a fixed rate for the floating or objective rate. In the case of a
qualified floating rate or a qualified inverse floating rate, the substituted
fixed rate is the

                                      S-31
<PAGE>

value of the rate as of the debt instrument's issue date. In the case of an
objective rate, other than a qualified inverse floating rate, the substituted
fixed rate is a rate that reflects the yield reasonably expected for the
Variable Note.

     If a Variable Note is a variable rate debt instrument and does not have a
single qualified floating rate or a single objective rate with all interest
payable at least annually in cash or property other than debt instruments of the
borrower, the qualified stated interest is determined by converting the Variable
Note to an "equivalent" fixed rate debt instrument. This is done by substituting
fixed rates for each variable or objective rate and then determining what amount
of the stated interest payments would be qualified stated interest under the
rules applicable to a Fixed Rate Note. In the case of a qualified floating rate
or a qualified inverse floating rate, the substituted fixed rate is the value of
the rate as of the Variable Note's issue date. In the case of an objective rate,
other than a qualified inverse floating rate, the substituted fixed rate is a
rate that reflects the yield reasonably expected for the Variable Note.

     In the case of a Variable Note, qualifying as a "variable rate debt
instrument," that provides for stated interest at either one or more qualified
floating rates or a qualified inverse floating rate and in addition provides for
stated interest at a single fixed rate - other than a fixed rate which is within
0.25 basis points of the variable rate and applies for a period of no more than
one year commencing with the issuance of the note - the fixed rate is initially
converted into a qualified floating rate, or a qualified inverse floating rate
if the Variable Note provides for a qualified inverse floating rate, which would
have caused the Variable Note to have a fair market value approximately equal to
the Variable Note's actual fair market value as of its issue date. After
converting the fixed rate into either a qualified floating rate or a qualified
inverse floating rate, the Variable Note is then converted into an "equivalent"
fixed rate debt instrument in the manner described above.

     Determining the amount of original issue discount to be recognized as
     ---------------------------------------------------------------------
interest income in a particular tax period. Payments of qualified stated
------------------------------------------
interest on a note are taxable to a U.S. Holder as ordinary interest income at
the time the payments are accrued or are received, in accordance with the U.S.
Holder's regular method of tax accounting. A U.S. Holder of a Discount Note with
a maturity date more than one year from the date of issue must include original
issue discount in income as ordinary interest for United States Federal income
tax purposes as it accrues under a constant yield method in advance of receipt
of the cash payments attributable to the income, regardless of the U.S. Holder's
regular method of tax accounting. In general, the amount of original issue
discount included in income by the initial U.S. Holder of a Discount Note is the
sum of the daily portions of original issue discount with respect to the
Discount Note for each day during the taxable year, or portion of the taxable
year, on which the U.S. Holder held the Discount Note. The "daily portion" of
original issue discount on any Discount Note is determined by allocating to each
day in any accrual period a ratable portion of the original issue discount
allocable to that accrual period. An "accrual period" may be of any length and
the accrual periods may vary in length over the term of the Discount Note,
provided that each accrual period is no longer than one year and each scheduled
payment of principal or interest occurs either on the final

                                      S-32
<PAGE>

day of an accrual period or on the first day of an accrual period. The amount of
original issue discount allocable to each accrual period is generally equal to
the difference between

     .  the product of the Discount Note's adjusted issue price at the beginning
        of the accrual period and its yield to maturity, determined on the basis
        of compounding at the close of each accrual period and appropriately
        adjusted to take into account the length of the particular accrual
        period and

     .  the amount of any qualified stated interest payments allocable to the
        accrual period.

The "adjusted issue price" of a Discount Note at the beginning of any accrual
period is the sum of the issue price of the Discount Note plus the amount of
original issue discount allocable to all prior accrual periods minus the amount
of any prior payments on the Discount Note that were not qualified stated
interest payments. Under these rules, U.S. Holders generally will have to
include in income increasingly greater amounts of original issue discount in
successive accrual periods.

     In the case of a Variable Note, the calculations of original discount
allocable to an accrual period are made by reference to the "equivalent" fixed
rate instrument. If the interest actually accrued or paid during an accrual
period differs from the interest assumed to be paid or accrued with respect to
the "equivalent" fixed rate instrument, (a) the difference is an adjustment to
the qualified stated interest for the accrual period to the extent it is
reflected in the amount of interest actually paid in the period and (b) any
balance is an adjustment to the original interest discount allocable to the
accrual period.

     U.S. Holders may generally elect to include in income all interest -
including stated interest, acquisition discount, original issue discount, de
minimis original issue discount, market discount, de minimis market discount,
and unstated interest, as adjusted by any amortizable bond premium or
acquisition premium - that accrues on a debt instrument by using the constant
yield method applicable to original issue discount, subject to some limitations
and exceptions. Premiums and market discount are described below under the
caption "--Consequences of Purchasing a Note for a Price Other Than Its Adjusted
Issue Price."

     Notes subject to special rules.
     ------------------------------

     Notes with put or call options. WRIT may issue notes that: (a) are
     ------------------------------
redeemable at the option of WRIT before their stated maturity, a "call option,"
(b) are repayable at the option of the holder before their stated maturity, a
"put option," or (c) have both a call option and a put option. Notes containing
a call option or a put option may be subject to rules that differ from the
general rules discussed above. Investors considering purchasing notes with those
features should consult their own tax advisors, since the original issue
discount consequences will depend, in part, on the particular terms and features
of the notes.

                                      S-33
<PAGE>

     Contingent payment debt instruments. If a Variable Note does not qualify
     ------------------------------------
as a "variable rate debt instrument" under the OID Regulations, then the
Variable Note would be treated as a contingent payment debt obligation. In
general, under the Treasury regulations governing contingent payment debt
obligations, the "CPDI Regulations," a U.S. Holder of a contingent payment debt
instrument is required to include future contingent and noncontingent interest
payments in income as the interest accrues based upon a projected payment
schedule. Moreover, in general, under the CPDI Regulations, any gain recognized
by a U.S. Holder on the sale, exchange, or retirement of a contingent payment
debt instrument will be treated as ordinary income and all or a portion of any
loss realized could be treated as ordinary loss as opposed to capital loss
depending upon the circumstances. The proper United States Federal income tax
treatment of Variable Notes that are treated as contingent payment debt
obligations will be more fully described in the applicable pricing supplement.

     Foreign-Currency Notes. The United States Federal income tax consequences
     ----------------------
of the purchase, ownership and disposition of notes providing for payments
denominated in a currency other than U.S. dollars will be described in the
applicable pricing supplement.

     Short-Term Notes. Although notes that have a fixed maturity of one year or
     ----------------
less from their date of issue, "Short-Term Notes," may be treated as having been
issued with original issue discount, a cash method U.S. Holder generally is not
required to accrue the original issue discount unless the U.S. Holder elects to
do so. Unless that election is made, any gain recognized by the cash method U.S.
Holder on the sale, exchange or maturity of the Short-Term Note will be ordinary
income to the extent of the original issue discount accrued on a straight-line
basis, or upon election under the constant yield method, based on daily
compounding, through the date of sale or maturity. A portion of the deductions
otherwise allowable to the U.S. Holder for interest on borrowings allocable to
the Short-Term Note will be deferred until a corresponding amount of income is
realized or the Short-Term Note is disposed of. U.S. Holders who report income
for United States Federal income tax purposes under the accrual method, and some
other holders including banks and dealers in securities, are required to accrue
original issue discount on a Short-Term Note on a straight-line basis unless an
election is made to accrue the original issue discount under a constant yield
method, based on daily compounding.

     Consequences of Purchasing a Note for a Price Other Than Its Adjusted Issue
Price.

     Market Discount. If a U.S. Holder purchases a Discount Note for an amount
     ---------------
that is less than its adjusted issue price as of the purchase date or purchases
a note other than a Discount Note for an amount that is less than its stated
redemption price at maturity, the U.S. Holder will be treated as having
purchased the note at a "market discount," unless the market discount is less
than a specified de minimis amount, generally 1/4 of 1% of the note's stated
redemption price at maturity multiplied by the number of complete years to its
maturity from the purchase date.

                                      S-34
<PAGE>

     Under the market discount rules, a U.S. Holder will be required to treat
any partial principal payment, or, in the case of a Discount Note, any payment
that does not constitute qualified stated interest, on, or any gain realized on
the sale, exchange, retirement or other disposition of, a note as ordinary
income to the extent of the lesser of:

     .  the market discount that has not previously been included in income and
        is treated as having accrued on the note at the time of the payment or
        disposition, or

     .  in the case of a disposition, the realized gain and, in all other cases,
        the amount of the payment.

Market discount will be considered to accrue ratably during the period from the
date of acquisition to the maturity date of the note, unless the U.S. Holder
elects to accrue market discount on the basis of semiannual compounding.

     A U.S. Holder may be required to defer the deduction of all or a portion of
the interest paid or accrued on any indebtedness incurred or maintained to
purchase or carry a note with market discount until the maturity of the note or
certain earlier dispositions, because a current deduction is only allowed to the
extent the interest expense exceeds an allocable portion of market discount.

     A U.S. Holder may elect to include market discount in income currently as
it accrues, on either a ratable or semiannual compounding basis, in which case
the rules described above regarding (a) the treatment as ordinary income of gain
upon the disposition of the note and upon the receipt of cash payments and (b)
the deferral of interest deductions will not apply. Generally, the currently
included market discount is treated as ordinary interest for United States
Federal income tax purposes. Such an election will apply to all debt instruments
acquired by the U.S. Holder on or after the first day of the taxable year to
which the election applies and may be revoked only with the consent of the IRS.

     The Market Discount rules do not apply to Short Term Notes, as defined
above.

     Premium. If a U.S. Holder purchases a note for an amount that is greater
     -------
than the sum of all amounts payable on the note after the purchase date other
than payments of qualified stated interest, the U.S. Holder (a) is not required
to include original issue discount in income and (b) will be considered to have
purchased the note with "amortizable bond premium" equal in amount to the
excess. A U.S. Holder may elect to amortize the premium using a constant yield
method over the remaining term of the note and may offset interest otherwise
required to be included with respect to the note during any taxable year by the
amortized amount of the excess for the taxable year. However, if the note may be
redeemed at WRIT's option after the U.S. Holder acquires it at a price in excess
of its stated redemption price at maturity, special rules would apply which
could result in a deferral of the amortization of some bond premium until later
in the term of the note.

                                      S-35
<PAGE>

Any election to amortize bond premium applies to all taxable debt obligations
then owned and thereafter acquired by the U.S. Holder and may be revoked only
with the consent of the IRS.

     A U.S. Holder who purchases a Discount Note for an amount that is greater
than its adjusted issue price as of the purchase date and less than or equal to
the sum of all amounts payable on the Discount Note after the purchase date
other than payments of qualified stated interest will be considered to have
purchased the Discount Note at an "acquisition premium." Under the acquisition
premium rules, the amount of original issue discount which a U.S. Holder must
include in its gross income with respect to the Discount Note for any taxable
year, or portion of a taxable year in which the U.S. Holder holds the Discount
Note, will be reduced, but not below zero, by the portion of the acquisition
premium properly allocable to the period.

     Disposition of a Note. Except as discussed above, upon the sale, exchange
or retirement of a note, a U.S. Holder generally will recognize taxable gain or
loss equal to the difference between the amount realized on the sale, exchange
or retirement, other than amounts representing accrued and unpaid interest, and
the U.S. Holder's adjusted tax basis in the note. A U.S. Holder's adjusted tax
basis in a note generally will equal the U.S. Holder's initial investment in the
note increased by any original issue discount included in income, and any
accrued market discount if the U.S. Holder has included such market discount in
income, and decreased by the amount of any payments, other than qualified stated
interest payments, received and amortizable bond premium taken with respect to
the note. The gain or loss generally will be long-term capital gain or loss if
the note was held for more than one year. Long-term capital gains of individuals
are subject to reduced capital gain rates while short-term capital gains are
subject to ordinary income rates. The deductibility of capital losses is subject
to limitations. Prospective investors should consult their own tax advisors
concerning these tax law provisions.

                                      S-36
<PAGE>

Non-U.S. Holders

     A non-U.S. Holder will not be subject to United States Federal income
taxes on payments of principal, any premium or interest, including any original
issue discount, on a note, unless the non-U.S. Holder is a direct or indirect
10% or greater shareholder of WRIT, a controlled foreign corporation related to
WRIT or a bank receiving interest described in section 881(c)(3)(A) of the Code.
To qualify for the exemption from taxation, the last United States payor in the
chain of payment before payment to a non-U.S. Holder, the "Withholding Agent,"
must have received in the year in which a payment of interest or principal
occurs, or in either of the two preceding calendar years, a statement that (1)
is signed by the beneficial owner of the note under penalties of perjury, (2)
certifies that the beneficial owner is not a U.S. Holder and (3) provides the
name and address of the beneficial owner. The statement may be made on an IRS
Form W-8 BEN or a substantially similar form, and the beneficial owner must
inform the Withholding Agent of any change in the information on the statement
within 30 days of the change. If a note is held through a securities clearing
organization or some other financial institutions, the organization or
institution may provide a signed statement to the Withholding Agent. However,
the signed statement must be accompanied by a copy of the IRS Form W-8 BEN or
the substitute form provided by the beneficial owner to the organization or
institution. A non-U.S. Holder who is not exempt from United States Federal
income taxes under the rules described above will be subject to tax withholding
at a rate of 30%, or, if a lower rate is provided for in an applicable income
tax treaty, at the lower treaty rate.

     The Treasury has issued new regulations that make modifications to the
withholding, backup withholding and information reporting rules. The new
regulations attempt to unify certification requirements and modify reliance
standards. The new regulations will generally be effective for payments made
after December 31, 2000, subject to transition rules. Prospective investors
should consult their own tax advisors regarding the new regulations.

     Generally, a non-U.S. Holder will not be subject to United States Federal
income taxes on any amount that constitutes capital gain upon retirement or
disposition of a note, if the gain is not effectively connected with the conduct
of a trade or business in the United States by the non-U.S. Holder. Some other
exceptions also may be applicable, and a non-U.S. Holder should consult its tax
advisor in this regard.

     The notes will not be includible in the estate of a non-U.S. Holder unless
the individual is a direct or indirect 10% or greater shareholder of WRIT or, at
the time of the individual's death, payments with respect to the notes would
have been effectively connected with the conduct by the individual of a trade or
business in the United States.

Backup Withholding

     Backup withholding of United States Federal income tax at a rate of 31% may
apply to payments made with respect to the notes to registered owners who are
not "exempt recipients" and

                                      S-37
<PAGE>

who fail to provide specified identifying information, such as the registered
owner's taxpayer identification number, in the required manner.

     Generally, individuals are not exempt recipients, whereas corporations and
some other entities generally are exempt recipients. Payments made with respect
to the notes to a U.S. Holder must be reported to the IRS, unless the U.S.
Holder is an exempt recipient or establishes an exemption. Compliance with the
identification procedures described in the preceding section would establish an
exemption from backup withholding for those non-U.S. Holders who are not exempt
recipients.

     In addition, upon the sale of a note to or through a broker, the broker
must withhold 31% of the entire purchase price, unless either:

     .  the broker determines that the seller is a corporation or other exempt
        recipient or

     .  the seller provides, in the required manner, specified identifying
        information and, in the case of a non-U.S. Holder, certifies that the
        seller is a non-U.S. Holder and other conditions are met.

A sale of a note to or through a broker must also be reported by the broker to
the IRS, unless either:

     .  the broker determines that the seller is an exempt recipient or

     .  the seller certifies its non-U.S. status and some other conditions are
        met.

Certification of the registered owner's non-U.S. status normally is made on an
IRS Form W-8 or IRS Form W-8 BEN under penalties of perjury, although in some
cases it may be possible to submit other documentary evidence. In addition,
prospective U.S. Holders should consult their own tax advisors with respect to
the new withholding regulations. See "United States Federal Income
Taxation--Non-U.S. Holders."

     Any amounts withheld under the backup withholding rules from a payment to a
beneficial owner would be allowed as a refund or a credit against the beneficial
owner's United States Federal income tax if the required information is
furnished to the IRS.

                                      S-38
<PAGE>

                             PLAN OF DISTRIBUTION

     WRIT is offering the notes on a continuing basis for sale to or through the
agents, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Banc One Capital
Markets, Inc., Deutsche Bank Securities Inc., A.G. Edwards & Sons, Inc., Legg
Mason Wood Walker, Incorporated and Salomon Smith Barney Inc. The agents,
individually or in a syndicate, may purchase notes, as principal, from WRIT from
time to time for resale to investors and other purchasers at varying prices
relating to prevailing market prices at the time of resale as determined by the
applicable agent, or, if so specified in the applicable pricing supplement, for
resale at a fixed offering price. However, we may agree with an agent for that
agent to utilize its reasonable efforts on an agency basis on our behalf to
solicit offers to purchase notes at 100% of the principal amount thereof ,
unless otherwise specified in the applicable pricing supplement. WRIT will pay a
commission to an agent, ranging from .125% to .750% of the principal amount of
each note, depending upon its stated maturity, sold through that agent as our
agent. WRIT will negotiate commissions with respect to notes with stated
maturities in excess of 30 years that are sold through an agent as our agent at
the time of the related sale. In addition, we estimate our expenses incurred in
connection with the offering and sale of the notes, including reimbursement of
certain of the agents' expenses, total approximately $250,000.

     Unless otherwise specified in the applicable pricing supplement, any note
sold to an agent as principal will be purchased by that agent at a price equal
to 100% of the principal amount thereof less a percentage of the principal
amount equal to the commission applicable to an agency sale of a note of
identical maturity. An agent may sell notes it has purchased from us as
principal to certain dealers less a concession equal to all or any portion of
the discount received in connection with that purchase. An agent may allow, and
dealers may reallow, a discount to certain other dealers. After the initial
offering of notes, the offering price (in the case of notes to be resold on a
fixed offering price basis), the concession and the reallowance may be changed.

     WRIT reserves the right to withdraw, cancel or modify the offer made by
this prospectus supplement without notice and may reject offers, in whole or in
part, whether placed directly with WRIT or through an agent. Each agent will
have the right, in its discretion reasonably exercised, to reject in whole or in
part any offer to purchase notes received by it on an agency basis.

     Unless otherwise specified in the applicable pricing supplement, you will
be required to pay the purchase price of your notes in immediately available
funds in the Specified Currency in The City of New York on the date of
settlement. See "Description of Notes--Terms of the Notes."

     Upon issuance, the notes will not have an established trading market.
Unless specified in the applicable pricing supplement, WRIT will not list the
notes on any securities exchange. The agents may from time to time purchase and
sell notes in the secondary market, but the agents are not obligated to do so,
and there can be no assurance that a secondary market for the notes will develop
or that there will be liquidity in the secondary market if one develops. From
time to time,

                                      S-39
<PAGE>

the agents may make a market in the notes, but the agents are not obligated to
do so and may discontinue any market-making activity at any time.

     In connection with an offering of notes purchased by one or more agents as
principal on a fixed offering price basis, the applicable agents will be
permitted to engage in certain transactions that stabilize the price of notes.
These transactions may consist of bids or purchases for the purpose of pegging,
fixing or maintaining the price of notes. If those agents create a short
position in notes, i.e., if they sell notes in an amount exceeding the amount
referred to in the applicable pricing supplement, they may reduce that short
position by purchasing notes in the open market. In general, purchases of notes
for the purpose of stabilization or to reduce a short position could cause the
price of notes to be higher than it might be in the absence of these type of
purchases.

     Neither WRIT nor any agent makes any representation or prediction as to the
direction or magnitude of any effect that the transactions described in the
immediately preceding paragraph may have on the price of notes. In addition,
neither WRIT nor any agent makes any representation that the agents will engage
in any such transactions or that such transactions, once commenced, will not be
discontinued without notice.

     The agents may be deemed to be "underwriters" within the meaning of the
Securities Act of 1933, as amended. WRIT has agreed to indemnify the agents
against certain liabilities, including liabilities under the Securities Act, or
to contribute to payments the agents may be required to make in respect thereof.
WRIT has agreed to reimburse the agents for specified expenses.

     In the ordinary course of its business, the agents and their affiliates
have engaged, and may in the future engage, in investment and commercial banking
transactions with us and certain of our affiliates.

     Banc One Capital Markets, Inc. is an affiliate of the indenture trustee,
Bank One Trust Company, N.A.

     From time to time, WRIT may sell other securities referred to in the
accompanying prospectus, and the amount of notes offered hereby may be reduced
as a result of these sales.

     The notes will be distributed in accordance with the requirements in the
applicable sections of Rule 2720 of the Conduct Rules of the NASD.

                             VALIDITY OF THE NOTES

     The validity of the notes will be passed upon for WRIT by Arent Fox Kintner
Plotkin & Kahn, PLLC, Washington, D.C. David M. Osnos, a trustee of WRIT, is a
member of Arent Fox Kintner Plotkin & Kahn, PLLC. Vinson & Elkins L.L.P.,
Washington, D.C., will act as counsel to the agents.

                                      S-40
<PAGE>

PROSPECTUS

                                  $325,546,875

                     WASHINGTON REAL ESTATE INVESTMENT TRUST
                       6110 EXECUTIVE BOULEVARD, SUITE 800
                            ROCKVILLE, MARYLAND 20852
                                 (301) 984-9400

                                  COMMON SHARES
                                PREFERRED SHARES
                              COMMON SHARE WARRANTS
                                 DEBT SECURITIES

         Washington Real Estate Investment Trust may offer from time to time its

         o common shares of beneficial interest,

         o preferred shares of beneficial interest,

         o warrants to purchase common shares, and

         o unsecured senior or subordinated debt securities,

up to an aggregate amount of $325,546,875 or an equivalent amount in one or more
foreign currencies or composite currencies, including European currency units.

         We may sell the offered securities in one or more ways: (a) directly,
(b) through agents we designate from time to time or (c) to or through
underwriters or dealers. If we use any agents or underwriters in selling any of
the offered securities, the prospectus supplement that we will provide will
identify the agents and underwriters and describe any applicable purchase price,
fee, commission or discount arrangement.

         Our common shares of beneficial interest are listed on the New York
Stock Exchange under the symbol "WRE".

         NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THE OFFERED SECURITIES OR PASSED UPON
THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

                The date of this prospectus is August 14, 2000.


<PAGE>


                                TABLE OF CONTENTS

                                                                           PAGE
                                                                           ----

About This Prospectus .......................................................3

Washington Real Estate Investment Trust......................................3

Use of Proceeds..............................................................4

Ratios of Earnings to Fixed Charges and Debt Service Coverage................4

Description of Shares........................................................5

Description of Common Share Warrants........................................15

Description of Debt Securities..............................................16

Plan of Distribution........................................................41

Legal Opinions..............................................................42

Experts.....................................................................42

Where You Can Find More Information.........................................43

                                       2

<PAGE>


                              ABOUT THIS PROSPECTUS

         This prospectus is part of a registration statement that we filed with
the SEC using a shelf registration process. Under this process, we may sell the
common shares, the preferred shares, the common share warrants and the debt
securities described in this prospectus in one or more offerings up to a total
amount of $325,546,875. We may sell the offered securities in any combination --
separately, together or as units with other offered securities -- in one or more
series or amounts and at prices and on other terms that we determine at the time
of sale.

         This prospectus provides you with a general description of the
securities we may offer. Each time we sell securities, we will provide a
prospectus supplement containing information about the specific terms and method
of the offering. The prospectus supplement may also add, update or change the
information in this prospectus. You should read both this prospectus and the
applicable prospectus supplement, together with additional information that we
refer to under "Where You Can Find More Information," before making an
investment decision.

                     WASHINGTON REAL ESTATE INVESTMENT TRUST

         Washington Real Estate Investment Trust, which is also known as WRIT,
is a self-administered and self-managed equity real estate investment trust
investing in income producing properties in the Mid-Atlantic area with a
principal focus in the greater Washington-Baltimore region. WRIT owns a
diversified portfolio of 59 properties consisting of 23 office buildings, 11
retail shopping centers, 9 apartment buildings and 16 industrial/flex
properties.

         WRIT's principal objective is to invest in high quality real estate in
prime locations and proactively manage, lease and develop its properties through
ongoing capital improvement programs to improve their economic performance.
During the quarter ended June 30, 2000, the economic occupancy rates of our
properties were:

                  office buildings                   96.8%
                  retail centers                     94.2%
                  apartment buildings                97.2%
                  industrial/flex properties         96.8%
                                                     -----
                       overall portfolio             96.6%

         WRIT's total debt on June 30, 2000 was approximately $336.7 million.

         WRIT's income from operations per share has increased for 34
consecutive years. WRIT concentrates on increasing its income from operations
and funds from operations to achieve its objective of paying increasing
dividends to its shareholders. Funds from operations is a supplemental measure
of real estate companies' operating performance. As of January 1, 2000 the
National Association of Real Estate Investment Trusts ("NAREIT") defines funds
from operations as income available for common shareholders before depreciation
and amortization of real estate assets and before extraordinary items, less
gains on sale of real estate. Prior to January 1, 2000 funds from operations
also excluded significant nonrecurring events. Funds from operations does
not replace net income as a measure of performance or net cash provided by
operating activities as a measure of liquidity. Rather, funds from operations
has been adopted by real estate investment trusts to provide a consistent
measure of operating performance in the industry. WRIT has paid consecutive
quarterly

                                       3

<PAGE>
dividends to its shareholders for 37 years, and the annual dividend paid has
increased every year for the past 29 years.

         WRIT is a Maryland REIT, successor to a trust founded in 1960. Our
principal offices are located at 6110 Executive Boulevard, Suite 800, Rockville,
Maryland 20852, telephone (301) 984-9400 or (800) 565-9748.

                                 USE OF PROCEEDS

         Unless we state otherwise in our prospectus supplement, we intend to
use the net proceeds from the sale of offered securities for general business
purposes, including the acquisition, development, renovation, expansion or
improvement of income-producing properties or the repayment of debt. We expect
that properties that we purchase in the future will be of the same general
character as those we presently own. We may also use the net proceeds to acquire
another REIT or other company that invests in income producing properties,
although we do not have a specific plan to do so. Until we use the net proceeds
for the purposes described above, we may invest them in short-term income
producing investments, such as commercial paper, government securities or money
market funds that invest in government securities and/or commercial paper.

         RATIOS OF EARNINGS TO FIXED CHARGES AND DEBT SERVICE COVERAGE

         The following table sets forth WRIT's ratios of earnings to fixed
charges and debt service coverage for the periods shown:

<TABLE>
<CAPTION>

                              SIX MONTHS ENDED
                                  6/30/00                 YEAR ENDED DECEMBER 31,
                             ------------------    ----------------------------------------
                                                   1999     1998     1997     1996     1995
                                                   ----     ----     ----     ----     ----
<S><C>
Earnings to fixed charges         2.56x            2.61x    3.01x    4.08x    6.11x   12.95x
Debt service coverage             3.35x            3.42x    3.84x    5.08x    7.26x   15.11x
</TABLE>

         We computed the ratios of earnings to fixed charges by dividing
earnings by fixed charges. For this purpose, earnings consist of income from
continuing operations plus fixed charges. Fixed charges consist of interest
expense, including interest costs capitalized, and the amortized costs of debt
issuance.

         We computed debt service coverage by dividing income before gain on
sale of real estate, interest income,

                                       4

<PAGE>
interest expense, depreciation and amortization by the sum of interest expense
plus mortgage principal amortization.

                              DESCRIPTION OF SHARES

GENERAL

         WRIT is authorized to issue 100,000,000 common shares with a par value
of $.01 per share. Under Maryland law and WRIT's declaration of trust, WRIT may
increase the aggregate number of authorized common shares without shareholder
approval. As of June 30, 2000, there were 35,733,793 common shares outstanding.

         WRIT's board of trustees in the future may propose to issue preferred
shares. If the board proposes to issue preferred shares, it will propose to
amend WRIT's declaration of trust to authorize WRIT to issue preferred shares
with a par value of $.01 per share. The preferred shares amendment will also
include modifications to the declaration of trust to distinguish the rights of
the holders of common shares and the holders of preferred shares. Adoption of
the preferred shares amendment will require the approval of the holders of 70%
of WRIT's outstanding common shares at a meeting of WRIT's shareholders. No
preferred shares may be issued prior to the adoption of the preferred shares
amendment.

         We describe below some of the terms of the common shares and preferred
shares. In addition, we describe selected provisions of WRIT's declaration of
trust and selected provisions of Maryland law. We will describe in a prospectus
supplement the specific terms of any series of preferred shares. The
descriptions in this prospectus and the applicable prospectus supplement are not
complete and may not contain all of the information that may be important to
you. To obtain further information, you should refer to the provisions of WRIT's
declaration of trust dated April 5, 1996, the amendments to the declaration of
trust dated September 21, 1998 and June 24, 1999, the bylaws, the preferred
shares amendment to be proposed and any applicable amendment to the declaration
of trust fixing the terms of a series of preferred shares.

COMMON SHARES

         Holders of common shares are entitled to receive dividends and
distributions when and as declared by the board of trustees after payment of, or
provision for, any cumulated dividends and distributions on and any required
redemptions of any preferred shares then outstanding. Holders of common shares
have one vote per share. Voting rights are not cumulative. This means that in
the election of trustees at a shareholders' meeting, the holders of a majority
of the outstanding common shares can cast all of their votes for each trustee to
be elected and elect all of the trustees then standing for election, and the
votes held by the holders of the remaining common shares will not be

                                       5

<PAGE>


sufficient to elect any trustee.

         The declaration of trust establishes the number of trustees at not less
than three nor more than seven and divides the trustees into three classes to be
elected on a staggered basis. Those trustees are elected by the holders of the
common shares. If the preferred shares amendment is proposed and adopted, the
board of trustees could establish a series of preferred stock having the right
to elect up to two additional trustees, but less than a majority of the
trustees, under specified circumstances and for specified periods, which we
describe below.

         Under the preferred shares amendment, the board of trustees could
reclassify any unissued common shares in one or more classes and could amend the
declaration of trust to decrease, as well as increase, the aggregate number of
common shares authorized without shareholder approval.

         Upon liquidation of WRIT, holders of common shares would receive their
pro rata share of the distributable assets of WRIT remaining after the
satisfaction of preferential rights of any preferred shares and the satisfaction
of all debts and liabilities of WRIT. Holders of common shares do not have any
preference, conversion, exchange, preemptive or redemption rights.

         The common shares are listed on the New York Stock Exchange. American
Stock Transfer & Trust Company, New York, New York, is the transfer agent for
the common shares.


PREFERRED SHARES

         GENERAL. The following description of preferred shares is based upon
the terms of the preferred shares amendment that WRIT's board of trustees would
propose in connection with a proposal to issue preferred shares. Following
shareholder approval of the preferred shares amendment, the board of trustees
will be authorized, without further shareholder action, to issue preferred
shares, in one or more series, with designations, preferences, rights and
limitations as the board of trustees approves. Under the preferred shares
amendment, WRIT will be authorized to issue 500,000 preferred shares with a par
value of $.01 per share, but the board of trustees could amend the declaration
of trust to increase or decrease the aggregate number of preferred shares
authorized without shareholder approval.

         The preferred shares are proposed to have the dividend, liquidation,
redemption, conversion and voting rights described below unless the prospectus
supplement relating to a particular series of preferred shares indicates
otherwise. You should refer to the prospectus supplement relating to the
particular series of preferred shares offered for specific terms, including:

         (1)   the title of the preferred shares;

         (2)   the number of shares included in the series offered;

                                       6

<PAGE>


         (3)   the offering price of the preferred shares;

         (4)   the liquidation preference per share;

         (5)   the dividend rate or method of calculation, the payment dates
               and the payment periods, including, if applicable, the dates
               from which dividends will accumulate;

         (6)   any voting rights provisions;

         (7)   any redemption provisions;

         (8)   any sinking fund provisions;

         (9)   any conversion provisions; and

         (10)  any other terms, rights, preferences or limitations.

The prospectus supplement also may discuss the federal income tax considerations
applicable to the preferred shares offered.

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

         DIVIDEND RIGHTS. Holders of preferred shares of each series will be
entitled to receive, when declared by the board of trustees, cash dividends at
the rates and on the dates described in the prospectus supplement relating to
the series of preferred shares, out of WRIT's assets legally available for that
purpose. The rates may be fixed or variable or both and may be cumulative,
noncumulative or partially cumulative.

         As long as any preferred shares are outstanding, no dividends will be
declared or paid and no distributions will be made on the common shares, other
than a dividend payable in common shares, unless the accrued dividends on each
series of preferred shares have been fully paid or declared and set apart for
payment and, if the applicable prospectus supplement so indicates, WRIT has set
apart any required amounts for any sinking funds for each series of preferred
shares.

         When dividends are not paid in full upon any series of preferred shares
and any other series of preferred shares ranking equally as to dividends with
that series of preferred shares, all dividends

                                       7

<PAGE>


declared upon that series of preferred shares and any other series of preferred
shares ranking equally as to dividends will be paid ratably in proportion to the
amount of accrued dividends to which they are entitled.

         Each series of preferred shares will be entitled to dividends as
described in the prospectus supplement relating to that series. Different series
of preferred shares may be entitled to dividends at different dividend rates or
based upon different methods of determination.

         RIGHTS UPON LIQUIDATION. Upon any voluntary or involuntary liquidation,
dissolution or winding up of WRIT, the holders of each series of preferred
shares will be entitled to receive out of the assets of WRIT available for
distribution to shareholders the amount stated or determined on the basis
described in the prospectus supplement relating to that series. If, upon any
voluntary or involuntary liquidation, dissolution or winding up of WRIT, the
amounts payable on the preferred shares of any series and any other shares of
stock of WRIT ranking as to distribution equally with that series of preferred
shares are not paid in full, the holders of preferred shares of that series and
of the other shares will share ratably in any distribution of assets of WRIT in
proportion to the full preferential amounts to which they are entitled or on
another basis as described in the applicable prospectus supplement. Any rights
of the holders of any series of preferred shares to participate in the assets of
WRIT remaining after the holders of other series of preferred shares have been
paid their liquidation preferences upon any liquidation, dissolution or winding
up of WRIT will be described in the prospectus supplement relating to that
series.

         REDEMPTION. Subject to the terms of WRIT's outstanding debt, a series
of preferred shares may be redeemable, in whole or in part, at the option of
WRIT or the option of the holder. In each case, the applicable prospectus
supplement will describe the terms of any redemption rights including the number
of shares, the price, the dates and the type of consideration.

         If, after giving notice of redemption to the holders of a series of
preferred shares, WRIT deposits with a designated bank funds sufficient to
redeem those preferred shares, then after that deposit, all preferred 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 those
preferred shares into other classes of capital stock of WRIT.

         CONVERSION RIGHTS. A series of preferred shares may be convertible. The
prospectus supplement for any series of preferred shares will describe the terms
on which shares of that series may be converted into common shares or any other
security issuable by WRIT.

         VOTING RIGHTS. A holder of preferred shares will not be entitled to
vote except as indicated in the prospectus supplement relating to a particular
series of preferred shares or except as expressly required by Maryland law.
Voting rights are proposed to be limited. The board of trustees may not
establish a series of preferred shares having voting rights in addition to the
following:

                                       8

<PAGE>


         (1)  the right to elect up to two additional trustees, constituting
              less than a majority of the trustees, following WRIT's failure
              to pay required dividends on the series of preferred shares
              for a specified number of quarterly periods, and the right to
              remove those trustees;

         (2)  the right to approve any transaction resulting in WRIT's
              issuing any class or series of preferred shares ranking senior
              to the series of preferred shares as to the payment of
              dividends or distributions or the distribution of assets on
              liquidation;

         (3)  the right to approve any amendment to the declaration of trust
              if the amendment would materially and adversely alter the
              rights, preferences or privileges of the series of preferred
              shares;

         (4)  the right to approve any merger in which WRIT is not the
              surviving entity, unless the terms of the merger provide that:

              o   the holders of the preferred shares will receive
                  equity securities of the surviving entity with
                  preferences, rights and privileges substantially
                  equivalent to the preferences, rights and privileges
                  of the series of preferred shares, and

              o   upon completion of the merger there will not be
                  outstanding equity securities of the surviving entity
                  ranking as to distribution rights and liquidation
                  preferences senior to the equity securities of the
                  surviving entity received by the holders of the
                  preferred shares, other than securities issued for
                  WRIT's securities outstanding before the merger which
                  were senior as to distribution rights and liquidation
                  preferences to the series of preferred shares.

         (5)  the right to vote on the termination of WRIT; and

         (6)  other voting rights as are expressly required by law.

         Except as indicated otherwise in the prospectus supplement relating to
a particular series of preferred shares, each full share will be entitled to one
vote on matters on which holders of preferred shares are entitled to vote and
fractional shares will not be entitled to any vote.

         TRANSFER AGENT AND REGISTRAR. WRIT will select the transfer agent,
registrar and dividend disbursement agent for a series of preferred shares,
which will be described in the applicable prospectus supplement. The registrar
for preferred shares will send notices to shareholders of any meetings at which
holders of preferred shares have the right to vote on any matter.

                                       9

<PAGE>


BUSINESS COMBINATION PROVISIONS

         WRIT's declaration of trust provides that any merger, consolidation or
liquidation of WRIT, or any sale of all or substantially all of its assets, must
be approved by a majority of WRIT's trustees. In addition, if any of those
transactions involves a related shareholder, the transaction must be approved by
a majority of trustees not appointed or nominated by or acting on behalf of the
related shareholder or an affiliate or associate of the related shareholder. A
related shareholder is a person or entity beneficially owning, directly or
indirectly, 5% or more of the outstanding shares, including among his or its
shares those owned by an affiliate or associate.

         As permitted by Maryland law, WRIT has expressly elected to be governed
by the special voting requirements of Title 3, Subtitle 6, of the Maryland
Corporations and Associations Article, which we refer to as the Special Voting
Article. The Special Voting Article establishes special requirements with
respect to a business combination between an interested stockholder and a
Maryland corporation unless exemptions are applicable. The Special Voting
Article prohibits a merger and other specified or similar transactions between a
Maryland corporation and an interested stockholder for a five-year period and
requires a super majority vote for those transactions after the end of the
five-year period. For the purposes of the Special Voting Article and the Control
Share Article, which we describe below, a Maryland corporation includes a
Maryland real estate investment trust. We refer to them collectively in this
section as a Maryland company.

         An interested stockholder is a person owning beneficially, directly or
indirectly, 10% or more of the outstanding voting stock of a Maryland company.
Business combinations include any merger or similar transaction subject to a
statutory vote and additional transactions involving transfers of assets or
securities in specified amounts to interested stockholders or their affiliates.

         Unless an exemption is available, a business combination may not be
consummated between a Maryland company and an interested stockholder for a
period of five years after the date on which the shareholder became an
interested stockholder. After that five-year period, a business combination may
not be consummated unless recommended by the board of the Maryland company and
approved by the affirmative vote of at least 80% of the votes entitled to be
cast by all holders of outstanding shares of voting stock and 66 2/3% of the
votes entitled to be cast by all holders of outstanding shares of voting stock
other than the interested stockholder. These provisions do not apply if the
company's stockholders receive a minimum price, as defined in the Special Voting
Article, for their shares and they receive the consideration in cash or in the
same form as previously paid by the interested stockholder for its shares and if
other conditions are met.

         A business combination with an interested stockholder that is approved
by the board of a Maryland company at any time before an interested stockholder
first becomes an interested stockholder is not subject to the special voting
requirements or fair price provisions of the Special Voting Article. An
amendment to a Maryland company's charter electing not to be subject to the

                                       10

<PAGE>


foregoing requirements must be approved by the affirmative vote of at least 80%
of the votes entitled to be cast by all holders of outstanding shares of voting
stock and 66 2/3% of the votes entitled to be cast by holders of outstanding
shares of voting stock who are not interested stockholders. The amendment will
not be effective until 18 months after the vote of stockholders and does not
apply to any business combination of a company with a stockholder who was an
interested stockholder on the date of the stockholder vote.

         As permitted by Maryland law, WRIT has also expressly elected to be
governed by the control share provisions of Title 3, Subtitle 7, of the Maryland
Corporations and Associations Article, which we refer to as the Control Share
Article. Under the Control Share Article, control shares of a Maryland company
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, excluding shares of stock owned by the acquiror or by officers or
directors who are employees of the company. Control shares are voting shares of
stock that, if aggregated with all other shares of stock previously acquired by
the acquiror, would entitle the acquiror to exercise voting power in electing
directors or trustees within one of the following ranges of voting power: (1)
20% or more but less than 33 1/3%, (2) 33 1/3% or more but less than a majority
or (3) a majority 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 shareholder approval. A control share acquisition is, subject to
specified exceptions, the acquisition of, ownership of or the power to direct
the exercise of voting power with respect to control shares.

         A person who has made or proposes to make a control share acquisition
upon satisfaction of specified conditions, including an undertaking to pay
expenses, may compel the board of directors to call a special meeting of
shareholders to be held within 50 days of demand to consider the voting rights
of the shares. If no request for a meeting is made, the Maryland company may
itself present the question at any shareholders' meeting.

         If voting rights for control shares are not approved at the meeting or
if the acquiring person does not deliver an acquiring person statement as
permitted by the statute, then subject to specified conditions and limitations,
the Maryland company may redeem any or all of the control shares, except those
for which voting rights have previously been approved, for fair value, without
regard to the absence of voting rights for the control shares. Fair value will
be determined as of the date of the meeting of the shareholders at which the
voting rights of the control shares are considered but not approved. If no
meeting is held, fair value will be determined as of the date of the last
acquisition of control shares by the acquiring person. If voting rights for
control shares are approved at a shareholders' meeting and the acquiror becomes
entitled to a majority of the shares entitled to vote, all other shareholders
may exercise appraisal rights. The fair value of the shares as determined for
purposes of the appraisal rights may not be less than the highest price per
share paid in the control share acquisition. Some limitations and restrictions
otherwise applicable to the exercise of dissenters' rights do not apply in the
context of a control share acquisition.

                                       11

<PAGE>


         The Control Share Article does not apply to

         o  shares acquired in a merger, consolidation or share exchange if the
            Maryland company is a party to the transaction,

         o  acquisitions approved or exempted by the charter or bylaws of the
            Maryland company or

         o  shares acquired before November 4, 1988 or under a contract entered
            into before November 4, 1988.

         The Special Voting Article and the Control Share Article may have the
effect of discouraging unilateral tender offers or other takeover proposals,
which some shareholders might consider in their interests or that might provide
a substantial premium for their shares. The Control Share Article in particular
has the effect of making a unilateral tender offer or other takeover of WRIT
more difficult. The provisions could also have the effect of insulating current
management against the possibility of removal and could, by possibly reducing
temporary fluctuations in market price caused by accumulations of shares,
deprive shareholders of opportunities to sell their shares at a temporarily
higher market price.

RESTRICTIONS ON OWNERSHIP

         For WRIT to qualify as a REIT under the Internal Revenue Code, in any
taxable year, not more than 50% in value of WRIT's outstanding shares may be
owned, directly or indirectly, by five or fewer individuals during the last six
months of the year, and the shares must be owned by 100 or more persons during
at least 335 days of a taxable year or a proportionate part of a taxable year
less than 12 months. To meet these and other requirements, the trustees have the
power to redeem or prohibit the transfer of a sufficient number of shares to
maintain or bring the ownership of the shares into conformity with the
requirements. In that regard, the declaration of trust provides that if any
person is or becomes at any time the beneficial owner, directly or indirectly,
of more than 10% of WRIT's outstanding shares or if WRIT's tax status is or can
be endangered by the purchase or retention of shares by any person, the trustees
may in their sole discretion (1) repurchase any or all shares held by that
person or (2) refuse to sell, transfer or deliver shares to that person. The
preferred shares amendment if adopted would amend this provision in the
declaration of trust to clarify that the 10% threshold applies to all of the
outstanding shares computed on the basis of the value of the shares.

         The purchase price for any shares repurchased will be (1) the cost or
the last sale price of the shares as of the date immediately preceding the day
on which the demand for repurchase is mailed, whichever price is higher, or (2)
the amount provided in the terms of that class or series of shares

                                       12

<PAGE>


called for repurchase, if the preferred shares amendment is adopted. From the
date fixed for repurchase by the trustees, and so long as payment of the
purchase price for the shares to be repurchased has been made or provided for,
the holder of any shares called for repurchase will cease to be entitled to
distributions, voting rights and other benefits with respect to those shares,
except the right to payment of the purchase price for the shares.

         The declaration of trust includes provisions to ensure that any rent
paid to WRIT by a sister corporation not become disqualified as rent from real
property by virtue of Section 856(d)(2)(B) of the Internal Revenue Code. For
purposes of these provisions, a sister corporation is a corporation the shares
of which are owned by exactly or substantially the same persons and in exactly
or substantially the same numbers as are the shares of WRIT. Under these
provisions, if the trustees, at any time and in good faith, are of the opinion
that direct or indirect ownership of shares has or may become concentrated to an
extent that would cause any rent to be paid to WRIT by a sister corporation, if
one existed, to fail to qualify or be disqualified as rent from real property by
virtue of Section 856(d)(2)(B) of the Internal Revenue Code, the trustees have
the power

         o   by lot or other means they believe equitable to call for
             purchase from any shareholder the number of shares that will
             be sufficient in the opinion of the trustees to maintain or
             bring the direct or indirect ownership of shares in conformity
             with the requirements of Section 856(d)(2)(B), and

         o   to refuse to register the transfer of shares to any person
             whose acquisition of shares would, in the opinion of the
             trustees, result in WRIT's being unable to comply with Section
             856(d)(2)(B).

         These provisions will apply even if a sister corporation does not exist
(1) at the time the trustees determine that the ownership of shares has or may
become so concentrated, or (2) at the time the trustees call shares for purchase
or refuse to register the transfer of shares. The purchase price for the shares
purchased under these provisions will be equal to

         o   the fair market value of the shares as reflected in the
             closing price for the shares on the principal stock exchange
             on which the shares are listed or, if the shares are not
             listed, then the last bid for the shares, as of the close of
             business on the date fixed by the trustees for the purchase
             or, if no such quotation is available, as will be determined
             in good faith by trustees, or

         o   the other amount provided in the terms of the class or series
             of shares called for repurchase, if the preferred shares
             amendment is adopted.

From the date fixed for purchase by the trustees, the holder of any shares
called for purchase will cease to be entitled to dividends, voting rights and
other benefits with respect to those shares, except

                                       13

<PAGE>


the right to payment of the purchase price fixed as described above.

         To further assure that ownership of the shares does not become
concentrated, the declaration of trust provides that if any transfer of shares
would prevent amounts received by WRIT from a sister corporation, if one
existed, from qualifying as rents from real property as defined in Section
856(d) of the Internal Revenue Code, by virtue of the application of Section
856(d)(2)(B) of the Internal Revenue Code, the transfer will be void from
inception and the intended transferee of the shares will be treated as never
having had an interest in those shares. If this provision is invalid by virtue
of any legal decision, statute, rule or regulation, then the transferee of the
shares will be treated as having acted as an agent on behalf of WRIT in
acquiring those shares and as holding those shares on WRIT's behalf.
Furthermore, the declaration of trust provides that shareholders will be
required upon demand to disclose to the trustees in writing information with
respect to their direct and indirect ownership of the shares that the trustees
deem necessary to determine whether WRIT satisfies the provisions of Sections
856(a)(5) and (6) and Section 856(d) of the Internal Revenue Code or the
regulations under such sections or to comply with the requirements of any other
taxing authority.

         Under an amendment to the declaration of trust, a provision has been
added to the declaration of trust specifying that (1) the share ownership
limitation provisions described above, or any other provision of the declaration
of trust, will not preclude the settlement of any transaction entered through
the facilities of the New York Stock Exchange or any other national securities
exchange or automated inter-dealer quotation system and (2) the occurrence of
the settlement of any transaction will not negate the effect of the share
ownership limitation provisions or any other provision of the declaration of
trust.

         The share ownership limitation provisions, like the business
combination provisions, may deter or render more difficult an attempt by a third
party to obtain control of WRIT if the attempt is not supported by the board of
trustees.

TAXATION

         WRIT has elected to be taxed as a REIT under the Internal Revenue Code.
A REIT that meets specified qualifications is relieved of federal income taxes
on ordinary income and capital gains distributed to shareholders. In the opinion
of Arent Fox Kintner Plotkin & Kahn, PLLC, legal counsel for WRIT, WRIT has
qualified as a REIT for the years 1995-1999 and its present and contemplated
method of operation will put it in a position to continue to qualify as a REIT.
David M. Osnos, a trustee, is a member of Arent Fox.

                                       14

<PAGE>


                      DESCRIPTION OF COMMON SHARE WARRANTS

         WRIT may issue common share warrants for the purchase of common shares.
WRIT may issue common share warrants independently or together with any other
offered securities offered by any prospectus supplement. Common share warrants
may be attached to or separate from the other offered securities. Each series of
common share warrants will be issued under a separate warrant agreement to be
entered into between WRIT and a warrant agent identified in the applicable
prospectus supplement. The warrant agent will act solely as an agent of WRIT in
connection with the common share warrants of a series and will not assume any
obligation or relationship of agency or trust for any holders or beneficial
owners of common share warrants.

         The applicable prospectus supplement will describe the terms of the
common share warrants, including, where applicable, the following:

         (1)  the title of the common share warrants;

         (2)  the aggregate number of the common share warrants;

         (3)  the price or prices at which the common share warrants will be
              issued;

         (4)  the designation, number and terms of the common shares
              purchasable upon exercise of the common share warrants;

         (5)  the designation and terms of any other offered securities with
              which the common share warrants are issued and the number of
              such common share warrants issued with each offered security;

         (6)  the date, if any, on and after which the common share warrants
              and the related common shares will be separately transferable;

         (7)  the price at which the common shares purchasable upon exercise
              of the common share warrants may be purchased;

         (8)  the date on which the right to exercise the common share
              warrants will commence and the date on which the right will
              expire;

         (9)  the minimum and maximum amount of the common share warrants
              that may be exercised at any one time;

         (10) information with respect to any book-entry procedures;

                                       15

<PAGE>


         (11) a discussion of federal income tax considerations; and

         (12) any other material terms of the common share warrants,
              including terms, procedures and limitations relating to their
              exchange and exercise.

                         DESCRIPTION OF DEBT SECURITIES

GENERAL

         WRIT will issue senior debt securities under a senior indenture dated
as of August 1, 1996, as supplemented from time to time, between WRIT and Bank
One Trust Company, N.A. (successor in interest to The First National Bank of
Chicago), as senior indenture trustee. WRIT will issue subordinated debt
securities under a subordinate indenture between WRIT and a commercial bank we
will select to act as subordinated indenture trustee. We use the term indenture
trustee to refer to the senior indenture trustee or subordinated indenture
trustee, as appropriate. We refer to the senior indenture and the subordinated
indenture together as the indentures and individually as an indenture. The
senior indenture and the form of the subordinated indenture are filed as
exhibits to the registration statement of which this prospectus is a part. The
indentures will be available for inspection at the corporate trust offices of
the senior indenture trustee and the subordinated indenture trustee and as
described below under "Where You Can Find More Information." The indentures are
subject to and governed by the Trust Indenture Act of 1939.

         We describe below some of the terms of the debt securities and some of
the provisions of the indentures. We will describe in a prospectus supplement
the specific terms of the debt securities and the extent to which the provisions
described below apply. The descriptions in this prospectus and the applicable
prospectus supplement are not complete and may not contain all of the
information that may be important to you. To obtain further information, you
should refer to the provisions of the indentures and the debt securities. We
have included in this prospectus references to sections of the indentures to
help you locate those provisions in the indentures.

TERMS

         The debt securities will be direct, unsecured obligations of WRIT. The
senior debt securities will rank equally with all other unsecured and
unsubordinated debt of WRIT. Payments on the subordinated debt securities will
be subordinated to the prior payment in full of WRIT's senior debt, as described
in this section under "Subordination." Each indenture provides that WRIT may
issue debt securities without limit as to aggregate principal amount, in one or
more series, in each case as established from time to time in, or under
authority granted by, a resolution of WRIT's board of

                                       16

<PAGE>


trustees or as established in one or more supplemental indentures. WRIT may
issue debt securities with terms different from those of debt securities
previously issued. Debt securities of one series may be issued at different
times and, unless otherwise provided, a series may be reopened, without the
consent of the holders of the debt securities of that series, for issuances of
additional debt securities of that series. (Section 301 of each indenture).

         More than one indenture trustee may be appointed under either
indenture, with each indenture trustee acting as to one or more series of debt
securities. Any indenture trustee may resign or be removed as to one or more
series of debt securities, and a successor indenture trustee may be appointed to
act regarding that series. (Section 608 of each indenture). If two or more
persons are appointed as indenture trustee regarding different series of debt
securities, each will act under the applicable indenture as an indenture trustee
of a trust separate from the trust administered by any other indenture trustee.
(Section 609 of each indenture). Except as otherwise indicated in this
prospectus, an indenture trustee may act only with respect to the one or more
series of debt securities for which it is indenture trustee under the applicable
indenture.

         The prospectus supplement relating to the series of debt securities
being offered will contain information on the specific terms of the debt
securities including:

         (1)  the title of the debt securities and whether the debt securities
              are senior or subordinated;

         (2)  the aggregate principal amount of the debt securities and any
              limit on the aggregate principal amount;

         (3)  the percentage of the principal amount of the debt securities
              that will be issued and, if less than the entire principal
              amount will be issued

              o  the portion of the principal amount payable upon declaration of
                 acceleration of the maturity of the debt securities,

              o  the portion of the principal amount of the debt securities that
                 is convertible into common shares or preferred shares, or

              o  the method by which any portion will be determined;

         (4)  if the debt securities are convertible, in connection with
              preserving WRIT's status as a REIT, any applicable limitations
              on the ownership or transferability of the common shares or
              preferred shares into which the debt securities are
              convertible;

         (5)  the date or dates, or the method for determining the date or
              dates, on which the

                                       17

<PAGE>


              principal of the debt securities will be payable and the amount
              of principal payable;

         (6)  the interest rate or rates, which may be fixed or variable, of
              the debt securities, or the method by which the rate or rates
              will be determined, if the debt securities will bear interest;

         (7)  the date or dates, or the method for determining the date or
              dates, from which interest will accrue;

         (8)  the dates on which interest will be payable;

         (9)  the record dates for interest payment dates, or the method by
              which the dates will be determined;

         (10) the persons to whom interest will be payable;

         (11) the basis upon which interest will be calculated if other than
              that of a 360-day year of twelve 30-day months;

         (12) the place or places where the principal of, any premium and
              interest on the debt securities will be payable;

         (13) the place where the debt securities may be surrendered for
              registration of transfer or exchange;

         (14) the place where notices to or demands upon WRIT relating to
              the debt securities and the applicable indenture may be
              delivered;

         (15) if WRIT has a redemption option, the times, prices,
              currencies, currency units or composite currencies and other
              terms and conditions upon which WRIT may redeem the debt
              securities, in whole or in part;

         (16) any obligation of WRIT to redeem, repay or purchase the debt
              securities under any sinking fund or similar provision or at
              the option of a holder of the debt securities, and the times,
              the prices, the currencies, currency units or composite
              currencies and other terms and conditions upon which WRIT will
              redeem, repay or purchase the debt securities, in whole or in
              part, under the obligation;

         (17) if other than U.S. 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, and
              the related terms and

                                       18

<PAGE>


              conditions;

         (18) whether the amount of payments of principal of, any premium or
              interest on the debt securities may be determined with
              reference to an index, formula or other method, which index,
              formula or method may, but need not be, based on currencies,
              currency units or composite currencies, and the manner by
              which the amounts will be determined;

         (19) whether the principal of, any premium or interest on the debt
              securities are to be payable, at the election of WRIT or a
              holder of the debt securities, in currencies, currency units
              or composite currencies other than that in which the debt
              securities are denominated or stated to be payable and

              o  the times when the election may be made,

              o  the terms and conditions upon which the election may be made,

              o  the time and manner of determining the exchange rate between
                 the currencies, currency units or composite currencies in which
                 the debt securities are denominated or stated to be payable,

              o  the identity of the exchange rate agent responsible for
                 determining the exchange rate, and

              o  the currencies, currency units or composite currencies in which
                 the debt securities are to be payable;

         (20) any provisions granting special rights to the holders of the
              debt securities upon the occurrence of any specified events;

         (21) any deletions from, modifications of or additions to the
              events of default or covenants of WRIT relating to the debt
              securities, whether or not the events of default or covenants
              are consistent with the events of default or covenants in the
              applicable indenture;

         (22) whether the debt securities will be issued in certificated or
              book-entry form;

         (23) whether the debt securities will be in registered or bearer
              form and, if in registered form, the denominations if other
              than $1,000 or any integral multiple, and if in bearer form,
              the denominations and other terms and conditions;

                                       19

<PAGE>


         (24) whether the debt securities will be subject to the defeasance
              and covenant defeasance provisions described in this
              prospectus, and any modification of those provisions;

         (25) whether and under what circumstances WRIT will pay any
              additional amounts on the debt securities relating to any tax,
              assessment or governmental charge and, if so, whether WRIT
              will have the option to redeem the debt securities in lieu of
              making the payment; and

         (26) any other terms of the debt securities consistent with the
              provisions of the applicable indenture. (Section 301 of each
              indenture).

         WRIT may issue debt securities at a discount below their principal
amount. If that occurs, the debt securities may provide for less than their
entire principal amount to be payable upon declaration of acceleration of the
maturity of the debt securities. We refer to those debt securities as original
issue discount securities. The applicable prospectus supplement will describe
the special U.S. federal income tax, accounting and other considerations
applicable to original issue discount securities.

         Except as described below under "Covenants" and as may be described in
any prospectus supplement, the indentures will not contain any provisions

         o  limiting WRIT's ability to incur indebtedness or

         o  affording holders of debt securities protection in the event of
            a highly leveraged or similar transaction involving WRIT or in
            the event of a change in control of WRIT.

The applicable prospectus supplement will provide information regarding any
deletions from, modifications of, or additions to the events of default or
covenants of WRIT that are described below, including any addition of a covenant
or other provision providing protection for risks similar to those referred to
above.

DENOMINATIONS, INTEREST, REGISTRATION AND TRANSFER

         Unless otherwise described in the applicable prospectus supplement, the
debt securities of any series issued in registered form will be issuable in
denominations of $1,000 and integral multiples of $1,000, and the debt
securities of any series issued in bearer form will be issuable in denominations
of $5,000. (Section 302 of each indenture).

                                       20

<PAGE>


         Unless otherwise described in the applicable prospectus supplement, the
principal of, any premium and interest on any series of senior debt securities
will be payable at the corporate trust office of the senior indenture trustee,
which initially will be Bank One Trust Company, N.A., 14 Wall Street, Eighth
Floor, New York, New York 10005. Unless otherwise described in the applicable
prospectus supplement, the principal of, any premium and interest on any series
of subordinated debt securities will be payable at the corporate trust office of
the subordinated indenture trustee. WRIT may instead pay interest on any series
of debt securities by check mailed to the address of the person entitled to the
payment as it appears in the applicable register for the debt securities or by
wire transfer of funds to that person at an account maintained within the United
States. (Sections 301, 307 and 1002 of each indenture).

         Any interest not punctually paid or duly provided for on any interest
payment date will cease to be payable to the holder of the debt security on the
applicable regular record date and 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 defaulted interest to be fixed by the indenture trustee. If
that occurs, notice will be given to the holder of the debt security not less
than 10 days prior to the special record date. Alternatively, defaulted interest
may be paid at any time in any other lawful manner. (Section 307 of each
indenture).

         Subject to 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 of the
debt securities at the corporate trust office of the applicable indenture
trustee. In addition, subject to limitations imposed upon debt securities issued
in book-entry form, the debt securities of any series may be surrendered for
conversion, registration of transfer or exchange at the corporate trust office
of the applicable indenture trustee. Every debt security surrendered for
conversion, registration of transfer or exchange must be properly endorsed or
accompanied by a written instrument of transfer. No service charge will be made
for any registration of transfer or exchange of any debt securities, but WRIT
may require payment of a sum sufficient to cover any tax or other governmental
charge payable in connection with the registration of transfer or exchange.
(Section 305 of each indenture). If WRIT designates a transfer agent, in
addition to the applicable indenture trustee, regarding any series of debt
securities, WRIT may at any time rescind the designation of the transfer agent
or approve a change in the location through which the transfer agent acts, but
WRIT is required to maintain a transfer agent in each place of payment for each
series of debt securities. WRIT may at any time designate additional transfer
agents regarding any series of debt securities.
(Section 1002 of each indenture).

         Neither WRIT nor any indenture trustee will be required to:

         o  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

                                       21

<PAGE>


            that series to be redeemed and ending at the close of business on
            the day of mailing of the notice of redemption;

         o  register the transfer of or exchange any debt security, or portion
            of any debt security, called for redemption, except the unredeemed
            portion of any debt security being redeemed in part; or

         o  issue, register the transfer of or exchange any debt security that
            has been surrendered for repayment at the option of the holder,
            except any portion of the debt security not being repaid. (Section
            305 of each indenture).

MERGER, CONSOLIDATION OR SALE

         WRIT will be permitted to consolidate with, or sell, lease or convey
all or substantially all of its assets to, or merge with or into, any other
entity if:

         o  WRIT will be the continuing entity, or the successor entity formed
            by or resulting from any consolidation or merger with WRIT or
            receiving the transfer of assets from WRIT will expressly assume
            payment of the principal of, any premium and interest on all of the
            debt securities and the due and punctual performance and observance
            of all of the covenants and conditions in each indenture;

         o  immediately after giving effect to the transaction, and treating any
            debt that becomes an obligation of WRIT or any subsidiary as a
            result of the transaction as having been incurred by WRIT or the
            subsidiary at the time of the transaction, no event of default under
            an indenture, and no event which, after notice or the lapse of time,
            or both, would become an event of default, has occurred and is
            continuing; and

         o  an officer's certificate and legal opinion covering these conditions
            are delivered to the indenture trustee. (Sections 801 and 803 of
            each indenture).


COVENANTS

         In this part of the prospectus, we use several capitalized terms to
refer to defined terms. We describe the definitions of those terms after the
paragraph in which we use them for the first time.

         SENIOR INDENTURE LIMITATIONS ON INCURRENCE OF DEBT. The senior
indenture provides that WRIT will not, and will not permit any Subsidiary to,
incur any additional Debt if, immediately after giving effect to the incurrence
of the additional Debt and the application of the proceeds from the

                                       22

<PAGE>


incurrence of the additional Debt, the aggregate principal amount of all
outstanding Debt of WRIT and its Subsidiaries on a consolidated basis determined
in accordance with generally accepted accounting principles is greater than 60%
of the sum of, without duplication:

         o  WRIT's Total Assets as of the end of the calendar quarter covered in
            WRIT's annual report on Form 10-K or quarterly report on Form 10-Q,
            as the case may be, most recently filed with the SEC, or if these
            reports are not permitted to be filed under the Securities Exchange
            Act, with the indenture trustee, before the incurrence of the
            additional Debt; and

         o  any increase in WRIT's Total Assets since the end of the last
            reported quarter including any increase in Total Assets resulting
            from the incurrence of the additional Debt. We refer to this
            increase together with WRIT's Total Assets as Adjusted Total Assets.
            (Section 1011 of the senior indenture).

         "Subsidiary" means a corporation, partnership or limited liability
company, a majority of the outstanding voting stock, partnership interests or
membership interests of which is owned or controlled, directly or indirectly, by
WRIT or by one or more other Subsidiaries of WRIT. For the purposes of this
definition, "voting stock" means stock having voting power for the election of
directors or trustees, whether at all times or only so long as no senior class
of stock has the voting power by reason of any contingency.

         "Debt" of WRIT or any Subsidiary means any debt of WRIT or any
Subsidiary, whether or not contingent, in connection with:

         (1)  borrowed money evidenced by bonds, notes, debentures or similar
              instruments;

         (2)  debt secured by any mortgage, pledge, lien, charge,
              encumbrance or any security interest existing on property
              owned by WRIT or any Subsidiary;

         (3)  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 except any balance that
              constitutes an accrued expense or trade payable, or all
              conditional sale obligations or obligations under any title
              retention agreement;

         (4)  the principal amount of all obligations of WRIT or any
              Subsidiary with respect to redemption, repayment or other
              repurchase of any Disqualified Stock; or

         (5)  any lease of property by WRIT or any Subsidiary as lessee that
              is reflected in WRIT's consolidated balance sheet as a
              capitalized lease in accordance with generally accepted

                                       23

<PAGE>


              accounting principles to the extent, in the case of items of
              debt under clauses (1) through (3) above, that any of those
              items, other than letters of credit, would appear as a
              liability on WRIT's consolidated balance sheet in accordance
              with generally accepted accounting principles. This includes,
              to the extent not otherwise included, any obligation by WRIT
              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 WRIT or any Subsidiary.

         "Disqualified Stock" means any Capital Stock that by its terms, 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:

         o  matures or is mandatorily redeemable, under a sinking fund
            obligation or otherwise;

         o  is convertible into or exchangeable or exercisable for Debt or
            Disqualified Stock; or

         o  is redeemable at the option of the holder, in whole or in part, in
            each case on or before the stated maturity of the series of debt
            securities.

         "Capital Stock" means any capital stock, including preferred stock,
shares, interests, participations or other ownership interests however
designated and any rights, other than debt securities convertible into or
exchangeable for corporate stock, warrants or options to purchase.

         "Total Assets" as of any date means the sum of

         o  the Undepreciated Real Estate Assets; and

         o  all other assets of WRIT and its Subsidiaries determined in
            accordance with generally accepted accounting principles, but
            excluding accounts receivable and intangibles.

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

         In addition to the limitations on the incurrence of Debt described
above, the senior indenture provides that WRIT will not, and will not permit any
Subsidiary to, incur any Secured Debt, whether owned at the date of the senior
indenture or subsequently acquired, if, immediately after giving effect to the
incurrence of the additional Secured Debt and the application of the proceeds,
the aggregate principal amount of all outstanding Secured Debt of WRIT and its
Subsidiaries on a consolidated basis is greater than 40% of WRIT's Adjusted
Total Assets. (Section 1011 of the senior

                                       24

<PAGE>


indenture.) "Secured Debt" means any Debt secured by any mortgage, lien, charge,
pledge, encumbrance or security interest of any kind upon any of the property of
WRIT or any Subsidiary.

         The senior indenture also provides that WRIT will not, and will not
permit any Subsidiary to, incur any additional Debt if the ratio of Consolidated
Income Available for Debt Service to the Annual Service Charge for the four
consecutive fiscal quarters most recently ended before the date on which the
additional Debt is to be incurred is less than 1.5 to 1.0, on a pro forma basis
after giving effect to the incurrence of that Debt and to the application of the
proceeds from the incurrence of that Debt. The ratio is calculated assuming
that:

         o  the additional Debt and any other Debt incurred by WRIT and its
            Subsidiaries since the first day of the four-quarter period and the
            application of the proceeds, including to refinance other Debt, had
            occurred at the beginning of that period;

         o  the repayment or retirement of any other Debt by WRIT and its
            Subsidiaries 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 this computation, the amount of Debt under any
            revolving credit facility will be computed based upon the average
            daily balance of that Debt during the period;

         o  in the case of Acquired Debt or Debt incurred in connection with any
            acquisition since the first day of the four-quarter period, the
            acquisition had occurred as of the first day of the period with the
            appropriate adjustments relating to the acquisition included in the
            pro forma calculation; and

         o  in the case of any acquisition or disposition by WRIT or its
            Subsidiaries 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 that
            period with the appropriate adjustments relating to the acquisition
            or disposition included in the pro forma calculation. (Section 1011
            of the senior indenture).

         "Consolidated Income Available for Debt Service" for any period means
Consolidated Net Income of WRIT and its Subsidiaries

         o  plus amounts that have been deducted for

            (1) interest on Debt of WRIT and its Subsidiaries,

            (2) provision for taxes of WRIT and its Subsidiaries based on
                income,

                                       25

<PAGE>


            (3)  amortization of debt discount,

            (4) depreciation and amortization,

            (5) the effect of any noncash charge resulting from a change in
                accounting principles in determining Consolidated Net Income for
                such period,

            (6) amortization of deferred charges and

            (7) provision for or realized losses on properties,

         o  less amounts which have been included for gains on disposition of
            properties.

         "Consolidated Net Income" for any period means the amount of
consolidated net income or loss of WRIT and its Subsidiaries for that period
determined on a consolidated basis in accordance with generally accepted
accounting principles.

         "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, Debt of
WRIT and its Subsidiaries.

         "Acquired Debt" means Debt of a person

         o  existing at the time the person becomes a Subsidiary or

         o  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
treated as incurred on the date of the related acquisition of assets from any
person or the date the acquired person becomes a Subsidiary.

         For purposes of the provisions limiting the incurrence of Debt, Debt is
treated as incurred by WRIT or a Subsidiary whenever WRIT or a Subsidiary
creates, assumes, guarantees or otherwise becomes liable on the Debt.

         MAINTENANCE OF TOTAL UNENCUMBERED ASSETS. The senior indenture also
provides that WRIT is required to maintain Total Unencumbered Assets of not less
than 150% of the aggregate outstanding principal amount of WRIT's Unsecured
Debt. (Section 1012 of the senior indenture).

         "Total Unencumbered Assets" means the sum of

                                       26

<PAGE>


         o  those Undepreciated Real Estate Assets not subject to an
            Encumbrance; and

         o  all other assets of WRIT and its Subsidiaries not subject to an
            Encumbrance determined in accordance with generally accepted
            accounting principles, but excluding accounts receivable and
            intangibles.

         "Encumbrance" means any mortgage, security interest, pledge,
hypothecation, assignment, deposit arrangement, encumbrance, statutory or other
lien or preference, priority or other security agreement, except:

         o  liens for taxes that (1) are not yet delinquent, (2) are not in an
            aggregate amount, as to WRIT and all Subsidiaries, greater than 10%
            of Total Assets or (3) are being contested in good faith by all
            appropriate proceedings, if adequate reserves relating to the taxes
            are maintained on the books of WRIT or its Subsidiaries, as the case
            may be, in conformity with generally accepted accounting principals;

         o  carrier's, warehousemen's, mechanic's, materialmen's, repairmen's or
            other similar liens that (1) are not in an aggregate amount, as to
            WRIT and all Subsidiaries, greater than 10% of Total Assets, (2) do
            not remain unsatisfied or undischarged for a period of more than 90
            days or (3) are being contested in good faith by all appropriate
            proceedings;

         o  pledges or deposits in connection with workers compensation,
            unemployment insurance and other social security legislation and
            deposits securing liability to insurance carriers under insurance or
            self-insurance arrangements;

         o  deposits to secure the performance of bids, trade contracts, other
            than for borrowed money, leases, statutory obligations, surety and
            appeal bonds, performance bonds and other obligations of a similar
            nature incurred in the ordinary course of business; and

         o  easements, rights of way, restrictions, development orders, plats
            and other similar encumbrances.

         "Total Assets" as of any date means the sum of

         o  the Undepreciated Real Estate Assets; and

         o  all other assets of WRIT and its Subsidiaries determined in
            accordance with generally accepted accounting principles, but
            excluding accounts receivable and intangibles.

         "Unsecured Debt" means Debt of WRIT or any Subsidiary that is not
secured by any

                                       27

<PAGE>


mortgage, lien, charge, pledge or security interest of any kind upon any of the
properties owned by WRIT or any of its Subsidiaries.

         EXISTENCE. Except as described under the section below entitled
"Merger, Consolidation or Sale," WRIT will be required to do everything
necessary to preserve and keep in full force and effect its existence, rights
and franchises. But WRIT will not be required to preserve any right or franchise
if it determines that the preservation of the right or franchise is no longer
desirable in the conduct of its business. (Section 1004 of each indenture).

         MAINTENANCE OF PROPERTIES. To the extent WRIT believes it necessary for
the proper conduct of business, WRIT will be required to keep all of its
material properties used in the conduct of its business or the business of any
Subsidiary in good condition, repair and working order and supplied with all
necessary equipment and to make all necessary repairs and improvements of those
properties. (Section 1005 of each indenture).

         INSURANCE. WRIT will be required to, and will be required to cause each
of its Subsidiaries to, keep all of its insurable properties insured against
loss or damage at least equal to their then full insurable value with insurers
of recognized responsibility and, if described in the applicable prospectus
supplement, having a specified rating from a recognized insurance rating
service. (Section 1006 of each indenture).

         PAYMENT OF TAXES AND OTHER CLAIMS. WRIT will be required to pay or
discharge before they become delinquent (1) all taxes, assessments and
governmental charges levied or imposed upon it or any Subsidiary or upon the
income, profits or property of WRIT or any Subsidiary, and (2) all lawful claims
for labor, materials and supplies that, if unpaid, might by law become a
material lien upon the property of WRIT or any Subsidiary. But WRIT will not be
required to pay or discharge any tax, assessment, charge or claim whose amount,
applicability or validity is being contested in good faith. (Section 1007 of
each indenture).

         PROVISION OF FINANCIAL INFORMATION. Whether or not WRIT is subject to
Section 13 or 15(d) of the Securities Exchange Act, WRIT will be required,
within 15 days of each of the dates by which WRIT would have been required to
file annual reports, quarterly reports and other documents with the SEC if WRIT
were subject to those sections, to

         o  mail to all holders of debt securities, as their names and addresses
            appear in the applicable register for those debt securities, without
            cost to the holders, copies of the annual reports, quarterly reports
            and other documents that WRIT would have been required to file with
            the SEC under Section 13 or 15(d) of the Securities Exchange Act if
            WRIT were subject to those sections;

         o  file with the applicable indenture trustee copies of the annual
            reports, quarterly reports

                                       28

<PAGE>


            and other documents that WRIT would have been required to file with
            the SEC under Section 13 or 15(d) of the Securities Exchange Act if
            WRIT were subject to those sections; and

         o  promptly upon written request and payment of the reasonable cost of
            duplication and delivery, supply copies of those documents to any
            prospective holder. (Section 1008 of each indenture).

         ADDITIONAL COVENANTS. The prospectus supplement will describe any
additional covenants of WRIT relating to any series of debt securities.

EVENTS OF DEFAULT, NOTICE AND WAIVER

         Each of the following is an Event of Default with respect to any series
of debt securities issued under either indenture:

         (1) default for 30 days in the payment of any installment of interest
             or any additional amount payable on any debt security of that
             series;

         (2) default in the payment of principal or any premium on any debt
             security of that series at its maturity;

         (3) default in making any sinking fund payment if required for any debt
             security of that series;

         (4) breach or default in the performance of any other covenant or
             warranty of WRIT contained in the indenture, other than a covenant
             added to the indenture solely for the benefit of another series of
             debt securities issued under the indenture, if the breach or
             default continues for 60 days after written notice as provided in
             the indenture;

         (5) default under any bond, debenture, note or other evidence of debt
             for money borrowed by WRIT -- including obligations under leases
             required to be capitalized on the balance sheet of the lessee under
             generally accepted accounting principles but not including any
             indebtedness or obligations for which recourse is limited to
             property purchased -- in an aggregate principal amount in excess of
             $5,000,000, whether the debt now exists or is subsequently created,
             if default results in the debt becoming or being declared due and
             payable before the date on which it would otherwise have become due
             and payable or results in the obligations being accelerated,
             without the acceleration having been rescinded;

                                       29

<PAGE>


         (6) default under any mortgage, indenture or instrument under which any
             debt may be issued or by which any debt may be secured or
             evidenced, for money borrowed by WRIT -- including leases required
             to be capitalized on the balance sheet of the lessee under
             generally accepted accounting principles but not including debt or
             obligations for which recourse is limited to property purchased --
             in an aggregate principal amount in excess of $5,000,000, whether
             the debt now exists or is subsequently created, if default results
             in the debt becoming or being declared due and payable before the
             date on which it would otherwise have become due and payable or
             results in the obligations being accelerated, without the
             acceleration have been rescinded;

         (7) specified events relating to bankruptcy, insolvency,
             reorganization, receivership or liquidation of WRIT or any
             Significant Subsidiary of WRIT; and

         (8) any other event of default under the terms of the debt securities
             of that series. (Section 501 of each indenture).

         "Significant Subsidiary" means any Subsidiary that meets any of the
following:

         o  WRIT and its other Subsidiaries' investments in and advances to the
            Subsidiary exceed 10% of the total assets of WRIT and its
            Subsidiaries consolidated as of the end of the most recently
            completed fiscal year;

         o  WRIT's and its other Subsidiaries' proportionate share of the total
            assets of the Subsidiary exceeds 10% of the total assets of WRIT and
            its Subsidiaries consolidated as of the end of the most recently
            completed fiscal year; or

         o  WRIT and its other Subsidiaries' equity in the income from
            continuing operations before income taxes, extraordinary items and
            cumulative effect of a change in accounting principle of the
            Subsidiary exceeds 10% of the income of WRIT and its Subsidiaries
            consolidated for the most recently completed fiscal year.

         If an Event of Default occurs and continues under any indenture
relating to debt securities of any series at the time outstanding, then the
indenture trustee or the holders of 25% or more in principal amount of the
outstanding debt securities of that series may declare the principal amount of,
and any premium on, all of the debt securities of that series to be due and
payable immediately. If the debt securities of that series are original issue
discount securities or indexed securities, then only the portion of the
principal amount as may be specified in the terms of those securities plus any
premium on those securities may be declared due and payable. To declare an
acceleration, an indenture trustee must provide written notice to WRIT. If the
holders declare an acceleration, they must provide written notice to WRIT and to
the indenture trustee.

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<PAGE>


         At any time after a declaration of acceleration relating to debt
securities of a series, or of all debt securities then outstanding under the
applicable indenture, has been made, but before a judgment or decree for payment
of the money due has been obtained by the indenture trustee, the holders of a
majority in principal amount of outstanding debt securities of the series, or of
all debt securities then outstanding under the applicable indenture, may rescind
the declaration and its consequences if:

         o  WRIT has deposited with the applicable indenture trustee all
            required payments of the principal of, any premium, interest, and
            any additional amounts, on the debt securities of the related
            series, or of all debt securities then outstanding under the
            applicable indenture, plus fees, expenses, disbursements and
            advances of the indenture trustee; and

         o  all Events of Default, other than the non-payment of accelerated
            principal, or specified portion of the principal and any premium or
            interest, relating to debt securities of that series, or of all debt
            securities then outstanding under the applicable indenture, have
            been cured or waived as provided in the applicable indenture.
            (Section 502 of each indenture).

         The holders of a majority in principal amount of the outstanding debt
securities of any series, or of all debt securities then outstanding under the
applicable indenture, may waive any past default relating to that series and its
consequences, except a default (1) in the payment of the principal of or any
premium, interest or additional amounts payable on any debt security of that
series or (2) relating to a covenant or provision contained in the applicable
indenture that cannot be modified or amended without the consent of the holder
of each outstanding debt security affected. (Section 513 of each indenture).

         Each indenture trustee will be required to give notice to the holders
of debt securities within 90 days of a default under the applicable indenture
unless the default has been cured or waived. But the indenture trustee may
withhold notice to the holders of any series of debt securities of any default
relating to that series, except a default in the payment of the principal of,
any premium, interest or additional amount payable on any debt security of that
series or in the payment of any sinking fund installment relating to any
security of that series, if specified responsible officers of the indenture
trustee consider withholding notice to be in the interest of the holders of that
series. (Section 601 of each indenture).

         No holder of debt securities of any series may institute any
proceeding, judicial or otherwise, relating to the indenture or for any remedy
under the indenture, unless the indenture trustee fails to act within 60 days
after it has received a written request to institute proceedings relating to a
continuing Event of Default from the holders of 25% or more in principal amount
of the outstanding debt securities of that series, as well as an offer of
indemnity reasonably satisfactory to it. (Section 507 of each indenture). But
this provision does not prevent any holder of debt securities from instituting
suit to enforce payment of the principal of and any premium, interest and
additional

                                       31

<PAGE>


amount payable on the debt securities on the due dates of those payments.
(Section 508 of each indenture).

         Subject to provisions in each indenture relating to the indenture
trustee's duties if a default occurs, each indenture trustee will not be
obligated to exercise any of its rights or powers under the applicable indenture
at the request or direction of any holders of any series of debt securities then
outstanding under the indenture, unless the holders have offered to the
indenture trustee reasonable security or indemnity. (Section 602 of each
indenture). The holders of a majority in principal amount of the outstanding
debt securities of any series, or of all debt securities then outstanding under
the applicable indenture, will have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the indenture
trustee, or of exercising any trust or power conferred upon the indenture
trustee. But an indenture trustee may refuse to follow any direction that (1) is
in conflict with any law or the indenture, (2) may involve the indenture trustee
in personal liability or (3) may be unduly prejudicial to the holders of debt
securities of that series not joining in the direction. (Section 512 of each
indenture).

         Within 120 days after the close of each fiscal year, WRIT will be
required to deliver to each indenture trustee a certificate, signed by one of
several specified officers of WRIT, stating whether that officer has knowledge
of any default under the applicable indenture and, if so, specifying each known
default and its nature and status. (Section 1009 of each indenture).


MODIFICATION OF THE INDENTURES

         Each indenture may be modified or amended only with the consent of the
holders of a majority in principal amount of all outstanding debt securities
affected by the modification or amendment. But no modification or amendment may,
without the consent of the holder of each debt security affected by the
modification or amendment:

         (1)   change the stated maturity of the principal of, any premium or
               any installment of principal of or interest payable on any debt
               security;

         (2)   reduce the principal amount of, the rate or amount of interest
               on, any premium payable on redemption of, or additional amounts
               payable with respect to any debt security,

         (3)   reduce the amount of principal of an original issue discount
               security that would be due and payable upon declaration of
               acceleration of the maturity of any debt security or would be
               provable in bankruptcy or adversely affect any right of repayment
               of the holder of that debt security;

         (4)   change the place or the currency for payment of principal of, any
               premium, interest or

                                       32

<PAGE>


               any additional amounts payable on any debt security;

         (5)   impair the right to institute suit for the enforcement of any
               payment on or with respect to any debt security;

         (6)   reduce the percentage in principal amount of outstanding debt
               securities of any series necessary to modify or amend the
               applicable indenture, to waive compliance with provisions of the
               indenture or specified defaults and consequences under the
               indenture or to reduce the quorum or voting requirements provided
               in the indenture; or

         (7)   modify any of the foregoing provisions or any of the provisions
               relating to the waiver of past defaults or covenants, except to
               increase the required percentage to effect the action or to
               provide that other provisions may not be modified or waived
               without the consent of the holder of each affected debt security.
               (Section 902 of each indenture).

         The holders of a majority in principal amount of outstanding debt
securities issued under either indenture may waive compliance by WRIT with
specified covenants and conditions in the indenture. (Section 1013 of each
indenture).

         WRIT and the applicable indenture trustee may modify or amend each
indenture without the consent of any holder of debt securities for any of the
following purposes:

         (1)     to evidence the succession of another person to WRIT and the
                 assumption by any successor of WRIT's covenants in the
                 indenture and in the debt securities;

         (2)     to add to the covenants of WRIT for the benefit of the holders
                 of all or any series of debt securities or to surrender any
                 right or power conferred upon WRIT in the applicable indenture;

         (3)     to add Events of Default for the benefit of the holders of all
                 or any series of debt securities;

         (4)     to add or change any provision of the applicable indenture to
                 facilitate the issuance of, or to liberalize terms of, debt
                 securities in bearer form, or to permit or facilitate the
                 issuance of debt securities in uncertificated form, if that
                 action will not adversely affect the interests of the holders
                 of the debt securities of any series in any material respect;

         (5)     to change or eliminate any provision of the applicable
                 indenture, but any change or elimination will become effective
                 only when there are no debt securities outstanding of any
                 series created before the change or elimination that are
                 entitled to the benefit of that provision;

                                       33

<PAGE>


         (6)     to secure the debt securities;

         (7)     to establish the form or terms of debt securities of any
                 series;

         (8)     to provide for the acceptance of appointment by a successor
                 indenture trustee or facilitate the administration of the
                 trusts under the applicable indenture by more than one
                 indenture trustee;

         (9)     to cure any ambiguity, defect or inconsistency in the
                 applicable indenture, if that action will not adversely affect
                 the interests of holders of debt securities of any series
                 issued under that indenture in any material respect; or

         (10)    to supplement any provision of the indenture to the extent
                 necessary to permit or facilitate defeasance and discharge of
                 any series of debt securities, if that action will not
                 adversely affect the interests of the holders of the debt
                 securities of any series in any material respect.
                 (Section 901 of each indenture).

         Each indenture provides that in determining whether the holders of the
requisite principal amount of outstanding debt securities of a series have given
any request, demand, authorization, direction, notice, consent or waiver under
the indenture or whether a quorum is present at a meeting of holders of debt
securities,

         o  the principal amount of an original issue discount security that
            will be treated as outstanding will be the amount of the principal
            of that debt security that would be due and payable as of the date
            of the determination upon declaration of acceleration of the
            maturity of that debt security;

         o  the principal amount of any debt security denominated in a foreign
            currency that will be treated as outstanding will be the U.S. dollar
            equivalent, determined on the issue date for that debt security, of
            the principal amount or, in the case of original issue discount
            security, the U.S. dollar equivalent on the issue date of that debt
            security of the amount determined as provided in the clause above;

         o  the principal amount of an indexed security that will be treated as
            outstanding will be the principal face amount of that indexed
            security at original issuance, unless otherwise provided with
            respect to that indexed security under specified provisions of the
            indenture; and

         o  debt securities owned by WRIT, any other obligor on the debt
            securities or any affiliate of WRIT or of that other obligor will be
            disregarded. (Section 101 of each indenture).

                                       34

<PAGE>


         Each indenture contains provisions for convening meetings of the
holders of debt securities of a series. (Section 1501 of each indenture). A
meeting may be called at any time by the applicable indenture trustee, and also,
upon request, by WRIT or the holders of at least 10% in principal amount of the
outstanding debt securities of that series, if notice is given as provided in
the applicable indenture. (Section 1502 of each indenture).

         Any resolution presented at a meeting or adjourned meeting properly
reconvened at which a quorum is present may be adopted by the affirmative vote
of the holders of a majority in principal amount of the outstanding debt
securities of that series. But any resolution relating to any request or demand
that may be made, notice or consent that may be given, or waiver or action that
may be taken by the holders of a specified percentage, which is less than a
majority in principal amount of the outstanding debt securities of a series, may
be adopted at a meeting or adjourned meeting properly reconvened at which a
quorum is present by the affirmative vote of the holders of that specified
percentage in principal amount of the outstanding debt securities of that
series. The provisions described above in this paragraph do not apply to those
situations where modifications or amendments of the applicable indenture require
the consent of the holders of each debt security affected. (Section 1504 of each
indenture).

         Any resolution passed or decision taken at any meeting of holders of
debt securities of any series properly held in accordance with the applicable
indenture will be binding on all holders of debt securities of that series. The
quorum at any meeting called to adopt a resolution, and at any reconvened
meeting, will be persons holding or representing a majority in principal amount
of the outstanding debt securities of a series. But if any action is to be taken
at the meeting relating to a consent or waiver that may be given by the holders
of not less than a specified percentage in principal amount of the outstanding
debt securities of a series, the persons holding or representing that specified
percentage in principal amount of the outstanding debt securities of that series
will constitute a quorum (Section 1504 of each indenture).

         Despite the foregoing provisions, if any action is to be taken at a
meeting of holders of debt securities of any series relating to any request,
demand, notice, consent, waiver or other action that the indenture expressly
provides may be made, given or taken by the holders of a specified percentage in
principal amount of all outstanding debt securities affected by that action, or
of the holders of that series and one or more additional series:

         o  no minimum quorum requirement will apply to the meeting, and

         o  the principal amount of the outstanding debt securities of the
            series that vote in favor of the request, demand, notice, consent,
            waiver or other action will be taken into account in determining
            whether that request, demand, notice, consent, waiver or other
            action has been made, given or taken under the indenture. (Section
            1504 of each indenture).

                                       35

<PAGE>


SUBORDINATION

         Upon any distribution to creditors of WRIT in a liquidation,
dissolution or reorganization, the payment of the principal of and interest on
the subordinated debt securities will be subordinated, to the extent provided in
the subordinated indenture, to the prior payment in full of all Senior Debt,
which we define below. (Sections 1601 and 1602 of the subordinated indenture).
But WRIT's obligation to make payment of the principal and interest on the
subordinated debt securities will not otherwise be affected. (Section 1608 of
the subordinated indenture). 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 WRIT receives notice of the
default. (Section 1603 of the subordinated indenture). 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 of the subordinated debt have
been applied to the payment of Senior Debt. (Section 1607 of the subordinated
indenture). By reason of the subordination, if assets are distributed upon
insolvency, some general creditors of WRIT may recover more, ratably, than
holders of the subordinated debt securities.

         "Senior Debt" as defined in the subordinated indenture means the
principal of and interest on, or substantially similar payments to be made by
WRIT regarding the following, whether outstanding at the date of execution of
the subordinated indenture or subsequently incurred, created or assumed:

         (1)  debt of WRIT for money borrowed or represented by purchase-money
              obligations;

         (2)  debt of WRIT evidenced by notes, debentures, bonds, or other
              securities issued under the provisions of an indenture, fiscal
              agency agreement or other instrument;

         (3)  obligations of WRIT as lessee under leases of property either
              made as part of any sale and leaseback transaction to which
              WRIT is a party or otherwise;

         (4)  debt of partnerships and joint ventures that is included in
              WRIT's consolidated financial statements;

         (5)  debt, obligations and liabilities of others as to which WRIT is
              liable contingently or otherwise to pay or advance money or
              property or as guarantor, endorser or otherwise or which WRIT
              has agreed to purchase or otherwise acquire; and

         (6)  any binding commitment of WRIT to fund any real estate
              investment or to fund any investment in any entity making the
              real estate investment, in each case other than:

              o  any debt, obligation or liability referred to in the preceding
                 clauses as to which

                                       36

<PAGE>


                 the instrument creating or evidencing the debt, obligation or
                 liability, provides that the debt, obligation or liability is
                 not superior in right of payment to the subordinated debt
                 securities or ranks equally with the subordinated debt
                 securities;

              o  any debt, obligation or liability that is subordinated to debt
                 of WRIT, to substantially the same extent as or to a greater
                 extent than the subordinated debt securities are subordinated;
                 and

              o  the subordinated debt securities. (Section 101 of the
                 subordinated indenture).

         At June 30, 2000, Senior Debt aggregated approximately $336.7 million
in principal amount. The subordinated indenture does not restrict the creation
of additional Senior Debt. But the senior indenture contains limitations on
WRIT's incurrence of indebtedness. See "Covenants -- Senior Indenture
Limitations on Incurrence of Debt."

DISCHARGE, DEFEASANCE AND COVENANT DEFEASANCE

         Under each indenture, WRIT may discharge obligations to holders of any
series of debt securities issued under the indenture that have not already been
delivered to the applicable indenture trustee for cancellation and that either
have become due and payable or will become due and payable within one year. To
do so WRIT must irrevocably deposit in trust with the applicable indenture
trustee, funds in currencies, currency units or composite currencies in which
those debt securities are payable in an amount sufficient to pay the entire debt
on those debt securities including principal, any premium, interest and any
additional amounts payable to the date of the deposit, if the debt securities
have become due and payable, or, if they have not, to the stated maturity or
redemption date. (Section 401 of each indenture).

         Each indenture provides that, if specified provisions of the indenture
are made applicable to the debt securities of or within any series, WRIT may
elect either:

         (1)  defeasance, which means WRIT elects to be discharged from any
              and all obligations relating to those debt securities, except
              for the obligations

              o  to pay any additional amounts upon the occurrence of certain
                 events of tax, assessment or governmental charge with respect
                 to payments on those debt securities;

              o  to register the transfer or exchange of those debt securities;

                                       37

<PAGE>


              o  to replace temporary or mutilated, destroyed, lost or stolen
                 debt securities;

              o  to maintain an office or agency regarding those debt
                 securities; and

              o  to hold moneys for payment in trust (Section 1402 of each
                 indenture); or

         (2)  covenant defeasance, which means WRIT elects to be released from
              its obligations under specified covenants relating to those debt
              securities, which are the covenants described above under
              "Covenants" and, if provided under the indenture, its
              obligations relating to any other covenant. WRIT may omit to
              comply with those obligations and the omission will not
              constitute a default or an Event of Default as to those debt
              securities. (Section 1403 of each indenture).

         To elect defeasance or covenant defeasance, WRIT must irrevocably
deposit in trust with the applicable indenture trustee, an amount sufficient to
pay the principal of, any premium and interest on those debt securities, and any
mandatory sinking fund or similar payments, on the scheduled due dates. The
amount deposited may be in currencies, currency units or composite currencies in
which those debt securities are payable at stated maturity, or Government
Obligations, which we define below, or both. But the scheduled payment of
principal and interest on any Government Obligations deposited must be before
the scheduled due date of the principal of, any premium and interest on the debt
securities. (Section 1404 of each indenture).

         "Government Obligations" means securities that are:

         o  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

         o  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 a particular series are payable, the payment of which
            is unconditionally guaranteed as a full faith and credit obligation
            by the United States of America or other government if the
            obligations are not callable or redeemable at the option of the
            issuer. Those obligations may include a depository receipt issued by
            a bank or trust company as custodian with respect to the Government
            Obligation or a specific payment of interest on or principal of the
            Government Obligation held by the custodian for the account of the
            holder of a depository receipt. But, except as required by law, the
            custodian must not be authorized to make any deduction from the
            amount payable to the holder of the depository receipt from any
            amount received by the custodian in regard to the Government
            Obligation or the specific payment of interest on or principal of
            the Government Obligation evidenced by the depository receipt.
            (Section

                                       38

<PAGE>


            101 of each indenture).

         A defeasance trust or covenant defeasance trust may be established only
if WRIT has delivered to the applicable indenture trustee an opinion of counsel,
as specified in each indenture, to the effect that the holders of the defeased
debt securities will not recognize income, gain or loss for United States
federal income tax purposes as a result of the defeasance or covenant defeasance
and will be subject to United States 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 also refer to and be based upon a ruling of the
Internal Revenue Service or a change in applicable United States federal income
tax law occurring after the date of the indenture. (Section 1404 of each
indenture).

         Unless otherwise described in the applicable prospectus supplement, if
after WRIT has deposited funds or Government Obligations or both to effect
defeasance or covenant defeasance relating to debt securities of any series, (1)
the holder of a debt security of the series is entitled to, and does, under
specified provisions of the indenture or the terms of the debt security, elect
to receive payment in a currency, currency unit or composite currency other than
that in which the deposit has been made, or (2) a Conversion Event, which we
define below, occurs in regard to the currency, currency unit or composite
currency in which the deposit has been made, the debt represented by the debt
security will be treated as fully discharged and satisfied through the payment
of the principal of, any premium, and interest on the debt security as they
become due out of the proceeds yielded by converting the amount so deposited
into the currency, currency unit or composite currency in which the debt
security becomes payable as a result of the election or the Conversion Event
based on the applicable market exchange rate.
(Section 1405 of each indenture).

         "Conversion Event" means the ceasing the use of:

         o  a foreign currency, currency unit or composite currency 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;

         o  the European currency unit both within the European monetary system
            and for the settlement of transactions by public institutions of or
            within the European Communities; or

         o  any currency unit or composite currency other than the European
            currency unit for the purposes for which it was established.
            (Section 101 of each indenture).

         Unless otherwise indicated in the applicable prospectus supplement, all
payments of principal of, any premium, 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 in U.S. dollars.

                                       39

<PAGE>


         If WRIT effects covenant defeasance relating to any debt securities and
the debt securities are declared due and payable because an Event of Default
occurs, there is a risk that the amount in the currency, currency unit or
composite currency in which the debt securities are payable, and Government
Obligations on deposit with the applicable indenture trustee, though sufficient
to pay amounts due on the debt securities at the time of their stated maturity,
may not be sufficient to pay amounts due on the debt securities at the time of
the acceleration resulting from the Event of Default. But WRIT would remain
liable to make payment of the amounts due at the time of acceleration.

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

CONVERSION RIGHTS

         If the debt securities are convertible into common shares or preferred
shares, the applicable prospectus supplement will describe the terms and
conditions of conversion. The terms will include:

         o  whether the debt securities are convertible into common shares or
            preferred shares,

         o  the conversion price or manner of calculation,

         o  the conversion period,

         o  whether conversion will be at the option of the holders or WRIT,

         o  the events requiring an adjustment of the conversion price and

         o  provisions affecting conversion in the event of the redemption of
            the debt securities.

GLOBAL SECURITIES

         The debt securities of a series may be issued in whole or in part in
the form of one or more global securities that will be deposited with, or on
behalf of, a depositary identified in the applicable prospectus supplement
relating to that series. Global securities may be issued in either registered or
bearer form and in either temporary or permanent form. The applicable prospectus
supplement will describe the specific terms of the depositary arrangement
relating to that series of debt securities.

                                       40

<PAGE>


                              PLAN OF DISTRIBUTION

         WRIT may sell the offered securities under any applicable prospectus
supplement to one or more underwriters for public offering and sale by them or
may sell the offered securities to investors directly or through agents. WRIT
will name any underwriter or agent involved in the offer and sale of the offered
securities in the applicable prospectus supplement.

         Underwriters may offer and sell the offered securities at a fixed price
or prices, which may be changed, at prices related to the prevailing market
prices at the time of sale or at negotiated prices. WRIT also may, from time to
time, authorize underwriters acting as WRIT's agents to offer and sell the
offered securities upon the terms and conditions described in the applicable
prospectus supplement. In connection with the sale of offered securities,
underwriters may receive compensation from WRIT in the form of underwriting
discounts or commissions and may also receive commissions from purchasers of
offered securities for whom they may act as agent. Underwriters may sell offered
securities to or through dealers, and the dealers may receive compensation in
the form of discounts, concessions or commissions from the underwriters or
commissions from the purchasers for whom they may act as agent.

         Any underwriting compensation paid by WRIT to underwriters or agents in
connection with the offering of offered securities, and any discounts,
concessions or commissions allowed by underwriters to participating dealers,
will be described in the applicable prospectus supplement. Underwriters, dealers
and agents participating in the distribution of the offered securities may be
deemed to be underwriters, and any discounts and commissions received by them
and any profit realized by them on resale of the offered securities may be
deemed to be underwriting discounts and commissions under the Securities Act.
Underwriters, dealers and agents may be entitled, under agreements entered into
with WRIT, to indemnification against and contribution toward certain civil
liabilities, including liabilities under the Securities Act.

         If indicated in the applicable prospectus supplement, WRIT will
authorize dealers acting as WRIT's agents to solicit offers by specified
institutions to purchase offered securities from WRIT at the public offering
price set forth in that prospectus supplement under delayed delivery contracts
providing for payment and delivery on the date or dates stated in the prospectus
supplement. Each delayed delivery contract will be for an amount not less than,
and the aggregate principal amount of offered securities sold under those
contracts will be not less nor more than, the amounts stated in the applicable
prospectus supplement. When approved by WRIT, delayed delivery contracts may be
made with institutions including commercial and savings banks, insurance
companies, pension funds, investment companies, and educational and charitable
institutions. Delayed delivery contracts will not be subject to any conditions
except:

         o  the purchase by an institution of the offered securities covered by
            those contracts will not at the time of delivery be prohibited under
            the laws of any jurisdiction in the United

                                       41

<PAGE>


            States to which the institution is subject, and

         o  if the offered securities are being sold to underwriters, WRIT must
            sell them the total principal amount of the offered securities less
            the principal amount covered by those contracts.

         Some of the underwriters and their affiliates may engage in
transactions with and perform services for WRIT and its subsidiaries in the
ordinary course of business.

                                 LEGAL OPINIONS

         The legality of the offered securities is being passed upon for WRIT by
Arent Fox Kintner Plotkin & Kahn, PLLC, Washington, D.C. David M. Osnos, a
trustee of WRIT, is a member of Arent Fox. Vinson & Elkins L.L.P., Washington,
D.C., will act as counsel to any underwriters, dealers or agents.

                                     EXPERTS

         The audited financial statements and schedules incorporated by
reference in this prospectus and elsewhere in the registration statement have
been audited by Arthur Andersen LLP, independent public accountants, as
indicated in their reports with respect thereto, and are incorporated by
reference herein in reliance upon the authority of said firm as experts in
giving said reports.

         The historical summary of gross income and direct operating expenses
for the year ended December 31, 1998 of Avondale Apartments included in WRIT's
Amendment to Current Report on Form 8-K filed November 30, 1999, which we
incorporate by reference in this prospectus, is incorporated in reliance on the
report dated October 15, 1999 of Stoy, Malone & Company, P.C., which we also
incorporate by reference, and on the authority of that firm as experts in
auditing and accounting.

         The historical summary of gross income and direct operating expenses
for the year ended December 31, 1998 of 600 Jefferson Plaza and 1700 Research
Boulevard included in WRIT's Amendment to Current Report on Form 8-K filed
November 30, 1999, which we incorporate by reference in this prospectus, is
incorporated in reliance on the report dated November 11, 1999 of Stoy, Malone &
Company, P.C., which we also incorporate by reference, and on the authority of
that firm as experts in auditing and accounting.

         The historical summary of gross income and direct operating expenses
for the year ended December 31, 1997 of Northern Virginia Industrial Park
included in WRIT's Current Report on Form 8-K filed October 15, 1998, which we
incorporate by reference in this prospectus, is incorporated in reliance on the
report dated September 30, 1998 of Stoy, Malone & Company, P.C., which we also
incorporate by reference, and on the authority of that firm as experts in
auditing and accounting.

         The historical summary of gross income and direct operating expenses
for the year ended December 31, 1997 of Woodburn Medical Park included in WRIT's
Current Report on Form 8-K filed December 15, 1998, which we incorporate by
reference in this prospectus, is incorporated in reliance on the report dated
December 4, 1998 of Stoy, Malone & Company, P.C., which we also incorporate by
reference, and on the authority of that firm as experts in auditing and
accounting.

                                       42

<PAGE>


                       WHERE YOU CAN FIND MORE INFORMATION

         We are subject to the information filing requirements of the Securities
Exchange Act of 1934 and we file reports, proxy statements and other information
with the SEC. You may read and copy these reports, proxy statements and other
information at the SEC's public reference room located at 450 Fifth Street,
N.W., Washington, D.C. 20549 and at the SEC's regional offices located at 7
World Trade Center, Suite 1300, New York, New York 10048 and 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661. You may obtain information on the
operation of the SEC's public reference rooms by calling the SEC at
1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy
statements and other information regarding issuers, including us, that file
electronically with the SEC. The address of that site is http://www.sec.gov.

         Because our common shares are listed on the New York Stock Exchange,
you also may read our reports, proxy statements and other information at the
offices of the NYSE, 20 Broad Street, New York, New York 10005.

         We have filed with the SEC a registration statement relating to the
offered securities on Form S-3 under the Securities Act of 1933. This prospectus
does not contain all the information in the registration statement. We have
omitted parts of it in accordance with the SEC's rules and regulations. For
further information, you should refer to the registration statement including
its exhibits and amendments.

         The SEC permits us to incorporate by reference in this prospectus some
information that is contained in other documents we file with the SEC. This
means that we may disclose important information by referring you to other
documents that contain the information, including documents that we file after
the date of this prospectus. The information that is incorporated by reference
is considered to be part of this prospectus.

         We incorporate by reference the documents listed below:

         1. Our annual report on Form 10-K for the year ended December 31, 1999,
            filed with the SEC on March 24, 2000, as amended on August 11,
            2000;

         2. Our proxy statement dated March 30, 2000, filed with the SEC on
            April 18, 2000;

         3. Our quarterly report on Form 10-Q for the quarter ended March 31,
            2000, filed with the SEC on May 15, 2000;

         4. Our quarterly report on Form 10-Q for the quarter ended June 30,
            2000, filed with the SEC on August 11, 2000;

         5. Our current report on Form 8-K dated September 30, 1998, filed with
            the SEC on October 15, 1998;

         6. Our current report on Form 8-K dated November 30, 1998, filed with
            the SEC on December 15, 1998;

         7. Our current report on Form 8-K dated September 20, 1999, filed with
            the SEC on

                                       43

<PAGE>


            October 5, 1999 and amended on November 30, 1999;

         8. Our current report on Form 8-K dated February 22, 2000, filed with
            the SEC on February 22, 2000;

         9. Our current report on Form 8-K dated April 25, 2000, filed with
            the SEC on April 25, 2000;

        10. Our current report on Form 8-K dated July 25, 2000, filed with
            the SEC on July 25, 2000;

        11. Our Form 8-A, filed with the SEC on December 4, 1998; and

        12. Each document that we file after the date of this prospectus under
            Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act and
            before the termination of this offering.

         Information in this prospectus may add to, update or change information
in a previously filed document incorporated by reference in this prospectus. In
that case, you should rely on the information in this prospectus. Information in
a document filed after the date of this prospectus may add to, update or change
information in this prospectus or in a previously filed document incorporated by
reference in this prospectus. In that case, you should rely on the information
in the later filed document.

         At your request, we will provide you without charge a copy of the
documents incorporated by reference in this prospectus, other than exhibits to
those documents. You may request a copy of the documents incorporated by
reference by writing or telephoning us at Washington Real Estate Investment
Trust, 6110 Executive Boulevard, Suite 800, Rockville, Maryland 20852, telephone
(301) 984-9400 or (800) 565-9748.

         We maintain a website at www.writ.com. Statements made in our website
are not part of this prospectus.


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<PAGE>

================================================================================



                                  $125,000,000

                                   [WRIT LOGO]

                                WASHINGTON REAL
                            ESTATE INVESTMENT TRUST


                          Medium-Term Notes, Series B
                            Due Nine Months or More
                              From Date of Issue


                        _______________________________

                             PROSPECTUS SUPPLEMENT
                        _______________________________


                              Merrill Lynch & Co.
                        Banc One Capital Markets, Inc.
                           Deutsche Banc Alex. Brown
                           A.G. Edwards & Sons, Inc.
                            Legg Mason Wood Walker,
                                 Incorporated
                             Salomon Smith Barney


                                August 14, 2000

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