Governor's House, St Andrew's House, Regent Road, Edinburgh

Archibald Elliot, 1815. 2-storey, castellated, irregular'plan, former Calton Jail Governor's House, with 3 and 4-stage round and polygonal towers to S and with adjoining turreted curtain wall to E and W. Dramatically situated on side of steep rocky ground of Calton Hill overlooking Waverley valley to S. Coursed and squared rubble with tooled margins. Base course, string courses, corbelled and crenellated parapets. Round-arched windows openings. Some segmental-arched windows to ground. Tower with narrow round-arch window openings.

Predominantly timber sash and case windows with mixture of glazing patterns; some 4 over 2-pane, some 5 over 4-pane, some 9 over 6-pane. Grey slates and lead flashings to roof. Wallhead stack with polygonal cans. Cast-iron rainwater goods.

INTERIOR: (seen 2007). Comprehensively modernised. Retains tight, open spiral staircase with stone treads, with timber and iron balustrade.

CURTAIN WALLS: to the E and W of the house. Tall, battered, coped rubble walls interspersed with castellated turrets, built on the side of the steep rocky slopes of Calton Hill and following the undulations of the hillside.