The tiny lock-up at Steeple Ashton is known as the Guard House and stands on the village green in the High Street.
The lock up was built in 1773 by William Rawlins at a cost of 19 pounds and 18 shillings.
The lock up is octagonal and built of ashlar limestone. It is 2.3m wide from face to face with walls 0.2m thick with a doorway to the north 1.47m high.
The door has original strap hinges and a small square window with a hinged iron grille.
The roof is domed, also of ashlar and surmounted by a ball finial, the entire structure being 3.6m high.
Inside there is a wooden bench and small stone privy. The floor is flagstone and the walls are limewashed.