The original hammerbeam roof was removed in 1800, along with the decorative crenellated parapet, when the hall was subdivided to form barracks. Two floors and five cross-walls were inserted, and the windows were altered accordingly. As early as 1893, calls were being made for the restoration of the Great Hall, but it was not until the army left in 1965 that the opportunity arose. It was agreed that a historically correct restoration could be achieved, and works began which were only completed in 1999. The hammerbeam roof and parapet were replaced, windows reinstated, and the outer walls were limewashed.