Brandywine Realty Trust is a self-administered and self-managed real estate investment trust (REIT) engaged in the acquisition, development, redevelopment, ownership, management, and operation of a portfolio of office and mixed-use properties. The Company operates through five segments: Philadelphia Central Business District (CBD), Pennsylvania Suburbs, Austin, Texas, Metropolitan Washington, D.C., and Other. The Philadelphia CBD segment includes properties located in the City of Philadelphia in Pennsylvania. Pennsylvania Suburbs segment includes properties in Chester, Delaware and Montgomery counties in the Philadelphia suburbs. The Austin, Texas segment includes properties in the City of Austin, Texas. Metropolitan Washington, D.C. segment includes properties in Northern Virginia, Washington, D.C., and Southern Maryland. The Other segment includes properties in Camden County in New Jersey and properties in New Castle County in Delaware. The Company owns approximately 81 properties.