Engine House & Accumulator Tower

Rubble stone, with ashlar dressings to tower and north facade and slate roofs, mostly replaced in corrugated iron. Three parallel sheds with tower north end of east shed.

Tower has high base with cambered headed north doorway then 2-stage main storey with 5 flat buttresses each face, a pair at angles and one in centre. Base of north side centre buttress has 1900 date stone. Pair of louvred vents each side of centre buttress at mid height, then string course at two-thirds height with buttresses terminated in set-offs mid-way up second stage. Further string course under high embattled parapet with outer battlements stepped up. Tower is open to sky within and contains large iron cylindrical water tank. To right of tower is coped gable of centre shed with blocked low brick arch formerly connected to detached chimney. To right west shed projects and has coped shouldered north gable and big cambered arched entry, now blocked. West side wall has 3 ashlar cambered-headed windows with tooled quoins, voussoirs and sills. Stepped eaves cornice. Added brick range to south incorporates some stone walling of an earlier range. Three cambered-headed west windows and doors at south end. East shed (behind tower) and centre shed have paired coped gables, both with ashlar voussoirs to cambered arched south end entries. Original roofs removed and replaced at lower level in corrugated iron. East side of east shed has 2 cambered-headed windows with ashlar voussoirs and sills. Corrugated iron shed at north east angle on rubble stone base, projecting forward of tower.

East shed said to have been engine house, centre shed the boiler house and west shed the maintenance shed.

Interiors not seen but said to retain inspection pit and hydraulic equipment.