Electricity Supply Board — Mount Street Upper

Attached two-bay four-storey former house over basement, built c. 1810 as one of terrace of three, with full-height glazed extension of c. 1980 to rear. M-profile pitched slate roof, hipped to east end of front span, having brick parapet with granite coping, shouldered brick chimneystack to west with terracotta pot, and concealed rainwater goods. Flemish bond red brick walling on masonry plinth course over rock-faced limestone basement walling. Square-headed window openings, diminishing in height to upper floors, with patent reveals and granite sills; block-and-start yellow brick surrounds to basement. Replacement timber sliding sash windows with simple horns, six-over-three pane to top floor, three-over-six pane to basement and six-over-six pane elsewhere; visible part of rear has timber sash window to top floor and fixed six-pane windows. Ornate cast-iron balconettes to first floor and wrought-iron grilles to basement. Round-headed doorway with painted masonry columns, Ionic capitals, plain entablature, leaded batwing fanlight and four-panel timber door with beaded muntin and brass furniture. Shared granite platform with decorative cast-iron boot-scrape and two steps to street level. Basement area enclosed by decorative spear-headed cast-iron railings on moulded granite plinth. Rear enclosed by late twentieth-century buildings.