Potomac Annex and Navy Hill Campus Planning and Adaptive Re-Use

Located between the Harry S Truman Building and the Kennedy Center in Washington, D.C., the Potomac Annex and Navy Hill campus is a designated historic district with deep cultural and governmental significance. When the Department of State sought to consolidate multiple tenants from various leased annexes onto this site, KCCT was selected to lead a comprehensive feasibility study and, subsequently, a full architectural and engineering renovation effort of four historically significant buildings with different footprints.

KCCT’s initial scope included the development of four master plan scenarios focused on integrating new construction with the adaptive reuse of existing historic structures. The feasibility study incorporated a wide array of assessments—from site infrastructure surveys and archaeological research to existing conditions documentation and program development modeling.

The resulting master plans ranged from low- to high-impact development strategies, balancing sensitive interventions with future growth potential. KCCT also performed program verification and blocking and stacking exercises to optimize campus functionality.