The General Services Administration (more specifically the Public Building Service) is responsible for maintaining the federal building portfolio and leases for

The General Services Administration (more specifically the Public Building Service) is responsible for maintaining the federal building portfolio and leases for itself and other agencies. You can see all GSA-owned buildings from here: http://www.gsa.gov/portal/content/104797 http://www.gsa.gov/portal/content/104797 However, many agencies manage some or most of their buildings (VA, IRS, and others). DoD is completely separate. Property disposal (or renovation) is further complicated by historic preservation requirements as well.