March 17, 2026 Gerard H. Sweeney President and Chief Executive Officer BRANDYWINE REALTY TRUST 2929 Arch Street, Suite 1800 Philadelphia, Pennsylvania 19104 Gerard H. Sweeney President and Chief Executive Officer BRANDYWINE OPERATING PARTNERSHIP, L.P. 2929 Arch Street, Suite 1800 Philadelphia, Pennsylvania 19104 Re: BRANDYWINE REALTY TRUST BRANDYWINE OPERATING PARTNERSHIP, L.P. Registration Statement on Form S-3 Filed March 10, 2026 File No. 333-294182 Dear Gerard H. Sweeney and Gerard H. Sweeney: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Pam Howell at 202-551-3357 with any questions. Sincerely, Division of Corporation Finance Office of Real Estate & Construction