The fort is square with rounded corners, 114 metres long externally, or 105 metres internally, the rampart wall being about 1.7 metres thick with ditches adding to the total width of the rampart. The low walls of the fort were "restored" some years ago, a slate course showing the height of the walls before their rebuilding. The outer wall has four gates, at the centre of each side, and lookout towers at each corner. Within the walls are the remaining outlines of several buildings: two side-by-side granaries, the garrison headquarters building and garrison commander's villa, or
Praetorium. In addition to these stone buildings, long-lost timber structures would have housed barracks for the mounted auxilia. The parade ground is approximately two hundred yards higher up the slope to the east of the fort. A track led up to it from the East Gate of the fort. A plan of the fort by
R. G. Collingwood in 1930 shows the parade ground to have been as big as the fort, with embanked edges to ensure a level surface. The English Heritage online 'History of Hardknott Roman Fort' suggests that the parade ground would have been large enough to train horses there (cf. 'External links' below). ==Cultural influence==