South Bishop Lighthouse and associated buildings

The buildings are within a walled compound, and built on two levels. The tower occupies the summit of the rock, and is linked to the first floor of the accommodation block by a corridor. Rendered granite rubble throughout, whitewashed; accommodation building is lined-out render with tooled dressings (angle quoins and architraves), and has hipped slate roof with black axial stack. This building formerly comprised a symmetrical pair of keepers' dwellings, but the westernmost dwelling was reduced in height and converted into an engine room in the 1970's. In its present form the building comprises a hipped roofed 2-storey block, with entrance in flat roofed porch with moulded cornice to the right. Paired windows to the left (partially blocked), with similar windows above, and a single window over the entrance. Similar windows in E gable return. All windows renewed in original openings. Single storey continuation of this building to the W is all that remains of the second keepers' house: it retains a matching porch to the left, and blocked windows in side elevation. To the rear of this building, and at an upper level, a corridor links it with the tower: 4-centred arched doorway in its W elevation. Tower is 11.3m high, slightly tapering from a plinth with tooled dressings. Single window facing N: a round-arched sash window with radial glazing in stresses architrave. Heavy modillion cornice to lantern walkway, with plain bellied cast-iron railings. Circular lantern (dated 1838) has gridded glazing above solid iron-plate base, and conical roof with cowl (replacing original ball-finial).

The buildings are enclosed by low walls of limewashed rubble, which form part of the original design by James Walker (but have been replaced by concrete walling for a short length at the high point to the rear of the tower).

Stairs parallel to the rear wall of the dwelling give access to the corridor: this has moulded 4-centred arches at each end. Tower has mural stone stair with plain cast-iron rail. Cast-iron tube (for weights of former clockwork rotative mechanism) extends the full height of the tower (with its base in the basement store-room). Service-room floor carried on 4 cast-iron beams. Cast-iron staircase leads from service room to lantern gallery: the lantern floor is modern, and the present Stone Chance optic installed in 1970's.