0000790816 2026-08-17 2026-08-17 0000790816 bdn:BrandywineOperatingPartnershipLPMember 2026-08-17 2026-08-17 PA 0001060386 0000790816 false 8-K 2026-08-17 BRANDYWINE REALTY TRUST BRANDYWINE OPERATING PARTNERSHIP, L.P. MD 001-9106 23-2413352 DE 000-24407 23-2862640 2929 Arch Street Suite 1800 Philadelphia 19104 610 325-5600 false false false false Common Shares of Beneficial Interest BDN NYSE false false