Organization of The Parent Company and The Operating Partnership

12 Months Ended

Dec. 31, 2011

Organization, Consolidation and Presentation of Financial Statements [Abstract]

ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP

ORGANIZATION OF THE PARENT COMPANY AND THE OPERATING PARTNERSHIP

The Parent Company is a self-administered and self-managed real estate investment trust (“REIT”) that provides leasing, property management, development, redevelopment, acquisition and other tenant-related services for a portfolio of office and industrial properties. The Parent Company owns its assets and conducts its operations through the Operating Partnership and subsidiaries of the Operating Partnership. The Parent Company is the sole general partner of the Operating Partnership and, as of December 31, 2011, owned a 98.1% interest in the Operating Partnership. The Parent Company’s common shares of beneficial interest are publicly traded on the New York Stock Exchange under the ticker symbol “BDN”.

As of December 31, 2011, the Company owned 207 office properties, 20 industrial facilities and five mixed-use properties (collectively, the “Properties”) containing an aggregate of approximately 25.2 million net rentable square feet. In addition, as of December 31, 2011, the Company owned economic interests in 18 unconsolidated real estate ventures that contain approximately 6.7 million net rentable square feet (collectively, the “Real Estate Ventures”). As of December 31, 2011, the Company also owned 444 acres of undeveloped land, and held options to purchase approximately 52 additional acres of undeveloped land. The Properties and the properties owned by the Real Estate Ventures are located in or near Philadelphia, Pennsylvania, Metropolitan Washington, D.C., Southern and Central New Jersey, Richmond, Virginia, Wilmington, Delaware, Austin, Texas and Oakland, Concord, Carlsbad and Rancho Bernardo, California. In addition to managing properties that the Company owns, as of December 31, 2011, the Company was managing approximately 7.4 million net rentable square feet of office and industrial properties for third parties and the Real Estate Ventures.

All references to building square footage, acres, occupancy percentage and the number of buildings are unaudited.

The Company conducts its third-party real estate management services business primarily through six management companies (collectively, the “Management Companies”): Brandywine Realty Services Corporation (“BRSCO”), BTRS, Inc. (“BTRS”), Brandywine Properties I Limited, Inc. (“BPI”), BDN Brokerage, LLC (“BBL”), Brandywine Properties Management, L.P. (“BPM”) and Brandywine Brokerage Services, LLC (“BBS”). Each of BRSCO, BTRS and BPI is a taxable REIT subsidiary. As of December 31, 2011, the Operating Partnership owns, directly and indirectly, 100% of each of BRSCO, BTRS, BPI, BBL and BPM.

As of December 31, 2011, the Management Companies were managing properties containing an aggregate of approximately 32.6 million net rentable square feet, of which approximately 25.2 million net rentable square feet related to Properties owned by the Company and approximately 7.4 million net rentable square feet related to properties owned by third parties and the Real Estate Ventures.