Colstoun House

15th century onwards, with substantial additions and alterations notably in the 16th, 18th and mid-19th centuries. Substantially rebuilt 1907, N wing partially demolished 1990 and retained portion finished more in 18th century style. Imposing and severe mansion, basically 4-storey including raised basement. 6-bay central block with asymmetrical wings. Harled with exposed margins, chamfered reveals to older openings. Plain cornice.

CENTRAL BLOCK: E elevation 6-bay, dominated by heavy and severe flat-roofed central porch, doorway with moulded architrave, topped by heraldic panel and plaque. Window to each flank, cavetto cornice and blocking course. 6 windows to 2nd and 3rd floors, 2 to each side of porch at 1st, 1 to each side at ground. 3 gabled and pedimented dormers. W elevation irregular, with single window to ground, 2 windows to 1st plus French window accessed by stone forestair, 3 large windows to 2nd, 4 small windows to 3rd. Window to each floor on S flank, 2 at ground. 3 gabled and pedimented dormers. Corbelled bartisan turret to NW corner, close by datestone of 1574.

S WING: 2-bay. Door at 1st floor in angle of return with central block, 4 panelled with plain fanlight, with access by forestair. E elevation symmetrical, but with only 1 window central at 1st floor. Openings to S elevation irregular, with 1 window infilled at 2nd floor. W elevation retains some older openings, but dominated by flat-roofed tripartite canted block rising to 2nd floor, with 3 large windows to 1st floor, foreshortened to ground and 2nd floor, cornice and parapet.

N WING: 2-bay portion remaining, irregular openings to all floors on E and N elevations, including tall stair window to E and doorway to courtyard on N. 2 openings only to W elevation on ground and 1st. Courtyard enclosed by harled screen wall and 2 small lodges retained as garage, single storey and harled with cornice and blocking course.

Fenestration in timber sash and case, 12-pane predominating, but also some in 16-pane (N wing) and 2-pane plate glass to larger windows. Roofs all piended unless otherwise stated, in graded grey slate.

7 large ashlar stacks, plain cans.

GARDEN STATUARY: on lawn across Colstoun Burn, several carved sundials and urns, probably dating from later 19th century alterations.