Electricity Supply Board — Mount Street Upper

Corner-sited four-bay four-storey former house over basement, built c. 1810 as end-of-terrace of five, having single-bay elevation to west (Fitzwilliam Street) and full-height glazed extension of c. 1980 to rear. Pitched slate roof to front span, hipped to west end, behind brick parapet wall with granite coping, shouldered brick chimneystacks with terracotta pots, and concealed rainwater goods. Flemish bond red brick walling with wigged pointing and rusticated painted masonry quoins on masonry plinth course over painted smooth rendered basement walls. Square-headed window openings, diminishing in height to upper floors, with patent reveals and granite sills (some replacement concrete). Largely replacement timber sliding sash windows with simple horns, six-over six pane to ground and second floors, nine-over-six pane to first floor and three over-three pane to top floor. Wrought-iron grilles to basement. Wyatt-style windows to ground and first floors of west elevation. Round-headed doorway with stucco surround, doorcase comprising engaged panelled pilasters with Adamesque Ionic capitals, stepped entablature with swags and rosettes to frieze, diamond-motif leaded sidelights, replacement petal fanlight, foliate archivolt and eight-panel replacement timber door with beaded muntin and brass furniture. Granite entrance platform with cast-iron boot-scrape and two steps to street level. Basement area enclosed by wrought-iron railings with decorative cast-iron posts and lamp standards, over moulded granite plinth. Rear enclosed by late twentieth-century buildings.