21 West Mayfield, Edinburgh

21 West Mayfield is a classical house built around 1870, with some alterations made in the 20th century. The building is two storeys high and features three symmetrical bays, with single-storey wings attached to the north and south. It is constructed from cream sandstone that is squared and snecked, with ashlar dressings. Notable architectural details include a base course, lugged architraves with decorative panels that feature star motifs at the ground level, a dividing band course, and a carved circular pattern parapet on the single-storey wings. The first-floor windows have architraves, and the building is topped with a dentilled eaves course, cornice, blocking course, and a decorative cast iron parapet on the roof.

On the north elevation, which serves as the entrance, there is a cable moulding surrounding a central, recessed round-arched doorway. This doorway features a panelled door and a plate glass fanlight above it, along with a bracketed cornice that has a carved parapet and ball finials. To the first floor, there is a single window. The ground floor has bipartite windows in the flanking bays, with single windows above them on the first floor. Between the bays, there are three light, canted dormers. The single-storey wings have two bays, with the eastern wing featuring an enlarged opening on the outer right that includes a modern glazed doorway and a single window on the outer left. The western wing has a bipartite window to the left and a single window on the outer right.

The windows are predominantly made of plate glass and timber sash and case, with some pivot windows in the eastern single-storey wing. The roofs are covered with grey slate, featuring piended designs and some fish scale slates on the main house.

The interior was not seen in 1996. The boundary walls consist of a low coped rubble wall along the street, with replacement railings.