Brandywine Realty Trust Announces Commencement of Public Offering of Common Shares

Brandywine Realty Trust Announces Commencement of Public Offering of Common
Shares

RADNOR, Pa., May 27 /PRNewswire-FirstCall/ -- Brandywine Realty Trust (the
"Company") (NYSE: BDN) announced today that it has commenced a public offering
of 30 million common shares. In addition, the Company expects to grant to the
underwriters for the public offering an option for 30 days to purchase up to
4.5 million additional common shares to cover overallotments, if any. Merrill
Lynch & Co., J.P.Morgan and Citi will serve as the joint book-running
managers.

The Company plans to use the net proceeds from the sale of common shares in
this offering to reduce outstanding borrowings under its $600 million
unsecured revolving credit facility and for general corporate purposes.

This offering will be made pursuant to a prospectus supplement being filed
today to the Company's prospectus, dated April 29, 2009, filed as part of the
Company's effective shelf registration statement. This press release shall not
constitute an offer to sell or the solicitation of an offer to buy any
securities nor will there be any sale of these securities in any state in
which such offer, solicitation or sale would be unlawful prior to registration
or qualification under the securities laws of any such state.

Copies of the preliminary prospectus supplement and accompanying prospectus
relating to these securities may be obtained by contacting Merrill Lynch &
Co., Attention: Prospectus Department, 4 World Financial Center, New York, New
York 10080; J.P.Morgan, Prospectus Library, 4 Chase Metrotech Center, CS
Level, Brooklyn, NY 11425, (718) 242-8002, and Citi, Attention: Prospectus
Department, Brooklyn Army Terminal, 140 58th Street, 8th floor, Brooklyn, NY
11220.

About Brandywine Realty Trust

Brandywine Realty Trust is one of the largest, publicly traded, full-service,
integrated real estate companies in the United States. Organized as a real
estate investment trust and operating in select markets, Brandywine owns,
develops and manages a primarily Class A, suburban and urban office portfolio
aggregating approximately 37.3 million square feet, including 26.1 million
square feet which it currently owns on a consolidated basis. For more
information, visit our website at www.brandywinerealty.com.

Forward-Looking Statements

Certain statements in this release constitute forward-looking statements
within the meaning of the Private Securities Litigation Reform Act of 1995.
Such forward-looking statements involve known and unknown risks, uncertainties
and other factors that may cause the actual results, performance, achievements
or transactions of the Company and its affiliates or industry results to be
materially different from any future results, performance, achievements or
transactions expressed or implied by such forward-looking statements. Such
risks, uncertainties and other factors relate to, among others, the Company's
ability to lease vacant space and to renew or relet space under expiring
leases at expected levels, the potential loss of major tenants, interest rate
levels, the availability and terms of debt and equity financing, competition
with other real estate companies for tenants and acquisitions, risks of real
estate acquisitions, dispositions and developments, including cost overruns
and construction delays, unanticipated operating costs and the effects of
general and local economic and real estate conditions. Additional information
or factors which could impact the Company and the forward-looking statements
contained herein are included in the Company's filings with the Securities and
Exchange Commission. The Company assumes no obligation to update or
supplement forward-looking statements that become untrue because of subsequent
events.

SOURCE Brandywine Realty Trust

Marge Boccuti, Manager, Investor Relations, +1-610-832-7702,
marge.boccuti@bdnreit.com; or Howard M. Sipzner, EVP & CFO, +1-610-832-4907,
howard.sipzner@bdnreit.com, both of Brandywine Realty Trust