Grant Hall

, US Army Corps of Engineers

Washington, DC

Exterior of Grant Hall at Fort McNair
Exterior of Grant Hall at Fort McNair
Trial Room used in the 1865 Lincoln Assassination Trial
1865 Illustration of Trial room during Lincoln Assassination trial
Display room

Originally built in 1832 as a federal penitentiary and later used to house officers and enlisted personnel, the historic Grant Hall contains the courtroom where President Lincoln’s assassination conspirators were tried in 1865. Since then the building has undergone numerous renovations that significantly altered its appearance and function.

Sensitive modernization reinvented the structure as contemporary office space for the National Defense University while respecting the historic fabric of the landmark. To provide a better workplace environment and maximize energy efficiency, we provided system upgrades, exterior envelope improvements, and accessibility upgrades, as well as enhancements to an existing geothermal heat pump system. During the renovation, the opportunity arose to reconstruct the third floor room where the Lincoln assassination trial was held, a space lost in an 1870 renovation.

Building Facts

  • 11,500 GSF