First Potomac Realty Trust is engaged in the ownership, management, development and redevelopment of office and business park properties in the greater Washington, D.C. region. The Company's segments include Washington, D.C., Maryland, Northern Virginia and Southern Virginia. It conducts its business through First Potomac Realty Investment Limited Partnership, the Company's operating partnership (the Operating Partnership). The Company is the sole general partner of, and owns the preferred interest and approximately 95.7% of the common interest in the Operating Partnership. The Company's portfolio consist a mix of single-tenant and multi-tenant office properties and business parks. The office properties are single-story and multi-story buildings that are primarily for office uses, and business parks consists of buildings with office features combined with some industrial property space. It also owns land that can support approximately 1.3 million square feet of additional development.