Seafield House, 37 Castle Street, Banff

Seafield House, located at 37 Castle Street in Banff, was designed by Thomas Mackenzie from Elgin and built between 1853 and 1854. This building features two storeys above a raised basement and has a five-bay frontage facing Castle Street, with a return gable and wing extending to Seafield Street. It is constructed from dark local whinstone, accented with contrasting painted ashlar dressings and margins.

The central entrance is marked by a double-columned Roman Doric portico that has a modillioned and balustraded cornice serving as a balcony. The flanking windows are consoled, corniced, and aproned, while the first-floor windows are smaller with moulded jambs. The return gable features a round-headed tripartite window, with two additional windows above that face Seafield Street.

On Seafield Street, there is a slightly set-back, two-storey, three-bay contemporary house that has a consoled pedimented central doorway, which is now blocked and converted into a window. The flanking windows are corniced, and the first-floor fenestration matches that of the main building. The ground floor windows have four-pane sash and case glazing, while the first floor features eight-pane windows. The building is topped with a modillioned cornice, corniced end and ridge stacks, and shallow piended slate roofs.

Inside, there is a Roman Doric columned screen leading to the stairwell, along with decorative cast-iron balusters featuring an ornate foliage design. The former drawing room on the right has a decorative plaster cornice and a grey and white marble chimneypiece. The room to the left of the entrance has a similar ceiling cornice but is divided into offices.