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                                                                    Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

     As independent public accountants, we hereby consent to the incorporation
by reference in this Registration Statement (the "Registration Statement") of
Brandywine Realty Trust (the "Company") and Brandywine Operating Partnership,
L.P. (the "Operating Partnership") of: our report dated June 3, 1998 on the
consolidated financial statements of the Operating Partnership for the period
August 22, 1996 to December 31, 1996 and for the year ended December 31, 1997
and on the consolidated financial statements of the Company for the period
January 1, 1996 to August 21, 1996 and for the year ended December 31, 1995,
included in the Operating Partnership's Registration Statement on Form 10
initially filed on June 5, 1998; our report dated March 4, 1998, on the
consolidated financial statements of the Company, included in the Company's
Annual Report on Form 10-K for the year ended December 31, 1997; our report
dated February 11, 1997 on the combined financial statements of revenue and
certain expenses of Columbia Acquisition Properties for the year ended December
31, 1996, included in the Company's Form 8-K/A (No.1) dated February 13, 1997
and Form 8-K/A (No. 2) dated February 24, 1997; our report dated January 29,
1997 on the combined financial statements of revenue and certain expenses of
Main Street Properties for the year ended December 31, 1996, included in the
Company's Form 8-K/A (No. 1) dated April 29, 1997; our report dated May 29, 1997
on the combined financial statements of revenue and certain expenses of TA
Properties for the year ended December 31, 1996, included in the Company's Form
8-K dated June 9, 1997; our report dated June 3, 1997 on the combined financial
statements of revenue and certain expenses of Emmes Properties for the year
ended December 31, 1996, included in the Company's Form 8-K dated June 9, 1997;
our report dated June 23, 1997 on the combined financial statements of revenue
and certain expenses of 748 & 855 Springdale Drive for the year ended December
31, 1996 included in the Company's Form 8-K dated June 26, 1997; our report
dated July 21, 1997 on the combined financial statements of revenue and certain
expenses of the Green Hills Properties for the year ended December 31, 1996
included in the Company's Form 10-Q for the quarter ended June 30, 1997; our
report dated July 21, 1997 on the combined financial statements of revenue and
certain expenses of the Berwyn Park Properties for the year ended December 31,
1996, included in the Company's Form 10-Q for the quarter ended June 30, 1997;
our report dated August 21, 1997 on the combined financial statements of revenue
and certain expenses of 500 & 501 Office Center Drive for the year ended
December 31, 1996 included in the Company's Form 8-K dated September 10, 1997;
our report dated October 15, 1997 on the combined financial statements of
revenue and certain expenses of Metropolitan Industrial Center for the year
ended December 31, 1996, included in the Company's Form 8-K dated October 30,
1997; our report dated October 27, 1997 on the combined financial statements of
revenue and certain expenses of Atrium I for the year ended December 31, 1996,
included in the Company's Form 8-K dated October 30, 1997; our report dated
November 14, 1997 on the combined financial statements of revenue and certain
expenses of Scarborough Properties for the year ended December 31, 1996,
included in the Company's Form 8-K dated December 17, 1997; our report dated
December 3, 1997 on the financial statement of revenue and certain expenses of
Bala Pointe Office Centre for the year ended December 15, 1996, included in the
Company's Form 8-K dated December 17, 1997; and our report dated December 13,
1997 on the combined financial statements of revenue and certain expenses of GMH
Properties for the year ended December 31, 1996, included in the Company's Form
8-K dated December 17, 1997; our report dated January 22, 1998 on the combined
financial statement of revenue and certain expenses of the RREEF Properties for
the year ended December 31, 1996, included in the Company's Form 8-K dated
January 27, 1998; our report dated January 23, 1998 on the financial statement
of revenue and certain expenses of Three Christina Centre for the year ended
December 31, 1996, included in the Company's Form 8-K dated February 23, 1998;
our report dated March 24, 1998 on the financial statement of revenue and
certain expenses of Three Christina Centre for the year ended December 31, 1997,
included in the Company's Form 8-K dated April 16, 1998; our report dated April
15, 1998 on the combined financial statements of revenue and certain expenses of
DKM Properties for the year ended December 31, 1997, included in the Company's
Form 8-K/A dated April 16, 1998; our report dated April 27, 1998 on the combined
financial statements of revenue and certain expenses of First Commercial
Properties for the year ended December 31, 1997, included in the Company's Form
8-K dated May 14, 1998; our report dated May 1, 1998 on the financial statement
of revenue and certain expenses of One Christina Centre for the year ended
December 31, 1997, included in the Company's Form 8-K dated May 14, 1998;




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and to all references to our Firm included in the Registration Statement.

                                            /s/  ARTHUR ANDERSEN LLP
                                                 ----------------------
                                                 Arthur Andersen LLP

Philadelphia, Pennsylvania
June 5, 1998
