Royal Avenue Mansions, 6-12 Hall Street, Campbeltown

Royal Avenue Mansions is a tenement building dated 1900, designed by Frank Burnet & Boston of Glasgow and exhibiting influences of the Glasgow Style. The building is four storeys high and eleven bays wide, situated in Campbeltown. It is constructed primarily of bull-faced, squared, and snecked sandstone, with stugged sandstone ashlar to the rear and dressings of droved red sandstone ashlar. The gable elevations are rendered. The ground floor features timber shopfronts, some with stall risers and a continuous fascia and cornice. A cill course runs along the first floor, and two- and three-storey canted windows are prominent features. Gabled and pedimented dormerheads break the eaves line above the third-floor windows. The timber window pattern originally comprised 6-pane upper sashes over 2-pane lower sashes, with some 12-pane timber sash and case windows surviving in the rear elevation and stairwells, and border glazing.

The northeast (Hall Street) elevation displays timber shopfronts at ground level, with a continuous fascia and cornice. Full-height oriels are situated in the 1st, 2nd, 5th, 6th, 7th, and 11th bays, with a three-storey oriel breaking the eaves in the 7th bay. Roll-moulded surrounds exist on the 1st and 2nd floors, except for the canted bays. Moulded cills are found at the 2nd floor, with exceptions in the 3rd and 9th bays. Semicircular pediments adorn the 2nd-floor windows in the 3rd and 9th bays. Gabled dormers with tripartite windows are present in the 1st, 6th, and 11th bays, with a datestone corniced above the centre window in the gablehead. Semicircular dormerheads are found in the 4th, 8th, and 10th bays, while the 2nd and 5th bays feature bipartite dormerheads; the 2nd bay has a piend roof, and the 5th bay is architraved with a gabled dormerhead.

The southwest (rear) elevation has an irregular arrangement of windows, some of which are bipartite and include stair windows. Two-window dormerheads break the eaves. The southeast (gable) elevation is largely blank, with the exception of fireplaces related to a former or unbuilt adjacent tenement. The roof is covered with green slate facing the street and grey slate to the rear, featuring a piend-roofed dormer at the 2nd bay, semi-octagonal with a terracotta ridge in the 7th bay. Cast-iron gutters and downpipes are present, with profiled gutters and hoppers to the principal front. Corniced stacks rise from the ridges and gables, including a three-flue wallhead stack to the principal front, to the right of the 8th bay, and a coped wallhead stack adjacent to the rear elevation dormers. Circular red cans top most flues, along with ashlar skew-copes to gables and dormerheads, and a scroll skewputt to the outer left gablehead.