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                                                                    Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

         As independent public accountants, we hereby consent to the
incorporation by reference in the registration statement (the "Registration
Statement") of Brandywine Realty Trust (the "Company") of: 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; and to all references to our Firm
included included in the Registration Statement.

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

Philadelphia, Pennsylvania
May 18, 1998


