Brandywine Realty Trust engaged in the acquisition, development, redevelopment, ownership, management, and operation of a portfolio of office, life science/lab, residential, and mixed-use properties. The company owned and managed properties within five segments. The Philadelphia CBD segment includes properties located in the City of Philadelphia in Pennsylvania. The 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. The Metropolitan Washington, D.C. segment includes properties in Northern Virginia, Washington, D.C. and Southern Maryland. The Other segment includes properties in Camden County, New Jersey and New Castle County, Delaware.