Crookston Castle - Architecture

Architecture

Crookston Castle sits atop a natural hill, emphasised by the early ring-ditch, which can still be seen. To the north is a steep drop to the Levern Water. The castle has a rectangular main block, which was strengthened by a tower at each corner. This formed an irregular 'X-plan' shape, an unusual layout also seen at Hermitage Castle. Only the north-east corner tower survives to its former height, as well as the basement of the south-east tower. The two western towers were destroyed in the 15th century and never rebuilt, repairs in the 19th century have obscured even the remains of these. The main body of the castle measures about 19m by 12m, with walls up to 3.7m thick, and the north-east tower is around 6m square.

The entrance is on the north side, adjacent to the north-east tower, and defended by a portcullis and two doors. A straight mural stair leads up to the right, while ahead is a barrel-vaulted basement with slit windows and a well. The hall is at first-floor level, and was also vaulted, rising to 8.3m high. A turnpike stair in the south-east corner gave access to another storey above the hall, as well as upper rooms in the eastern towers. The towers had one room on each floor. In the basement of the north-east tower is a prison only accessible from above, while at the top there is access to the four storeys of the tower, via modern iron ladders, opening onto an impressive view from the roof. The top of the north-east tower, including corbels, was also rebuilt in the 19th century.