The Drop Redoubt was a key element of the Western Heights fortifications. In 1861, a new range of three buildings, parallel to and facing the Soldiers’ Quarters across the Parade Ground were constructed. These comprised, in the centre, a single building in which were combined Ablutions, Latrines, Bath Room and Cook House and, on each side, Staff Sergeants’ Quarters. (location accurate to the nearest 1m based on available information)