A large roofless brick building - a single room with a wide opening at one end suggesting use as an engine shed or store. there are windows along each side, partially blocked on the E side. The W side of the structure has fallen over at cill height. At one side of the entrace "GR 1911" is incribed in the brickwork. Overall the building is baout 10m x 6m and about 4m to the top of the surviving gable end. 25m above OD.