Calton House, 26-28 Dean Street, Edinburgh

Former Secession Church circa 1826 with later additions and alterations. Symmetrical 3-storey, 3-bay, rectangular-plan block (advanced at centre) forming part of terrace (No 30). Painted harl at ground to front; painted render above; sandstone rubble to sides (squared and coursed in part). Raised base course; raised string course dividing ground and 1st floors; corniced eaves. Former school adjoined to left designed by Robert Wright, 1826, converted to use as school circa 1844 with later additions and alterations. Irregular single storey, 6-bay grouping forming end of terrace comprising symmetrical 3-bay block to right (Nos 26 & 28); asymmetrical, 3-bay block to left (No 24).Sandstone ashlar to front; red brick to side. Corniced eaves to right; corniced and pendant-bracketed sandstone canopies to front.

NE (SIDE) ELEVATION: square-headed opening centred at ground; segmental-arched window above; single storey addition projecting to outer left. 12-pane glazing in timber sash and case windows to front. Grey slate piended roof.

INTERIOR: not seen 1999.

SW (SIDE) ELEVATION: former 4-bay nave with regularly-spaced, segmental-arched windows in each bay. Predominantly lying-pane glazing (hoppers to front). Grey slate piended roof.

INTERIOR: not seen 1999.

FORMER SCHOOL, NW (ENTRANCE) ELEVATION: large, bipartite window centred in 3-bay block to right with full-width canopy above; flush-panelled timber doors flanking at ground (blocked fanlight to right; small-pane fanlight to left); canopies surmounting both. Lower, 3-bay block to left with 2-leaf timber door in bay to right; fanlight; surmounting canopy; single windows in remaining bays to left. Single storey addition recessed to outer left.

FORMER CHURCH, NW (ENTRANCE) ELEVATION: projecting central bay with large, round-arched entrance at ground comprising 2-leaf, part-glazed doors with flanking side-lights (stylised border glazing throughout); decorative round-arched fanlight; surmounting keystone. 2 square-headed windows above entrance at 1st floor; single segmental-arched window centred at 2nd floor. Large, round-arched windows flanking entrance at ground; single square-headed windows above; segmental-arched windows aligned above. Deep-set, 2-leaf boarded timber door at ground to outer left. Single storey garage adjoined to right.