3 Carlton Street, Edinburgh

7 Carlton Street in Edinburgh is an impressive townhouse designed by James Milne in 1824. This extensive terrace features two-storey and basement, three-bay townhouses built in a plain classical style. The buildings have a continuous balustraded parapet and cast-iron balconies on the first floor. The exterior is made of sandstone ashlar, with rustication at the ground floor. The entrance platts extend over the basement area recess facing the street. There is a banded base course and a banded cill course at the first floor, along with a corniced eaves course topped by a balustraded parapet. The doorways are inset, with timber doors and rectangular fanlights, some of which have a geometric glazing pattern. The windows at the first floor are moulded, architraved, and corniced.

On the northeast (rear) elevation, the building features coursed rubble with droved ashlar rybats, lintels, and cills, and has a roughly regular arrangement of windows. There is also some original single-storey lean-to structure to the right.

The windows predominantly have a 12-pane glazing pattern, with timber sash and case designs, and the first floor features 6-over-9-pane windows. The roof is double-pitched and covered with grey slates, and there are corniced ashlar ridge stacks with some octagonal clay cans. The building has cast-iron rainwater goods and cast-iron railings that edge the basement area recess to the street.

Inside, as seen in 2010, the interiors showcase a decorative classical scheme with intricate plasterwork, large drawing rooms, and stone stairs with well-detailed balustrades topped by large cupolas. Some of the original spaces have been converted into flats.