Turnbull And Scott (Engineers) Ltd, 16-20 Commercial Road

Early 20th century. 2-storey, 3-bay roughly T-plan Tudor administration block with shouldered gables, corniced parapet and mullioned windows. Squared and snecked sandstone with polished ashlar dressings. Moulded eaves course; hoodmoulds to ground floor and pronounced masonry cills. Blind arrow slits to gableheads. Two large sheds to rear lit by pairs of large keystoned segmental headed windows.

FURTHER DESCRIPTION: Timber panelled door with plain fanlight and gablet pediment above to central bay of principal (E) elevation; horizontal tripartite window to left. Roughly symmetrical 3-bay wings recessed to left and right with tripartite windows to centre and shouldered wall-head gables. Later large tripartite window to left bay of right wing. Small-pane glazing set in metal-framed casement and fixed-light windows. Grey slate, red ridge tiles. Coped ridge stacks.

SHEDS: Pair of linked sheds to rear (W) with shouldered gable ends. Large sliding corrugated iron door to left of N elevation. Small single storey addition to E with corrugated iron roof. Asbestos and corrugated iron cladding to W elevations. Continuous ridge glazing. Non-traditional additions to S.

INTERIOR: Administration block repaired following flood in 2005, but retains original stair and tiled floor in vestibule. Cast-iron roof structure to sheds, that to E retains original manually operated hoist set into the side walls.