Building 507, a two-story wood- framed structure with concrete foundation, was constructed in 1942 by the United States Army. As the Golden Gate National Recreation Area, a unit of the National Park Service, rehabilitated Fort Baker as part of its long-term conversion of the former army base into a multi-purpose district of the park, this building was converted to serve as office space for the park’s law enforcement unit. The first floor tenant improvements included interior demolition; replacement of electrical, lighting, and telecommunications systems; coordination of furnishings; ADA improvements; and rehabilitation of interior finishes.