12 Ann Street, Edinburgh

10 Ann Street in Edinburgh is a classical townhouse likely designed by James Milne between 1826 and 1829, with some later additions to the attic. The building features an extensive stepped terrace of paired two-storey, three-bay townhouses with a basement, which ascend on rising ground to the southeast. The prominent gardens in front of the street enhance its appeal. The exterior is constructed of sandstone ashlar and coursed squared rubble, with ashlar rybats at the basement. The northwest gable has a brick-toothed corner. The entrance platts extend over the basement area recess leading to the garden.

The ground floor has a banded base course and a narrow banded cill course, while the first floor features a deep banded cill course that incorporates fluted aprons around the windows. The corniced eaves course adds to the classical style. The doorways are moulded, architraved, bracketed, and corniced, with rectangular fanlights that have a geometric glazing pattern. Notably, the doorway of No 12 has a later stone pediment dated 1886 and initialled 'EM'. The buildings at Nos 6, 10, and 14 have a two-bay blind return. Some dormers have been added later and are rectangular and tile-hung. The large mansard roof, added later, is tile-hung and features three pedimented dormer windows at No 12.

On the northeast (rear) elevation, the building is finished in coursed rubble with tooled ashlar rybats, lintels, and cills, displaying roughly regular fenestration. The timber sash and case windows have a 12-pane glazing pattern. The roof is predominantly double-pitched with some piended gables, covered with grey slates. Corniced ashlar ridge stacks are present, along with some clay cans and cast-iron rainwater goods. A low broached ashlar wall with droved copes and gate rybats edges the gardens to the street, topped with cast-iron railings that incorporate decorative lamp standards with large bowl shades.

The interior, as seen in a selection of spaces in 2010, features a decorative classical scheme characterized by intricate plasterwork, large drawing rooms, and stone stairs with well-detailed balustrades topped by large cupolas. Some areas have been converted into flats.