Numbers 15 and 16 and 17 and Attached Railings

Numbers 15, 16, and 17 are a terrace of three houses, originally built around 1828-1832, and later altered, including work at number 16 in 1991. The rear is pinkish-brown brick, while the front and side facades are painted stucco, with a Welsh slate roof and a lead roof to the verandah. Cast-iron railings are also present.

The houses are four storeys high, with a basement, and feature nine windows on the first floor, with the central three bays projecting, and recessed single-story side bays. The first floor has ten-pane French windows throughout. The second floor windows are 8/8 sashes within tooled, eared architraves with moulded sills and horns. Third-floor windows have 6/6 sashes within eared architraves. A cornice runs along the top of the facade.

The central entrance, leading to number 16, has a four-panel door with margin lights, and a fanlight with Gothic glazing under a cambered arch. A distyle Roman Doric porch supports a dentil frieze with a wreath motif and cornice. Entrances to numbers 15 and 17 are located in the side bays, featuring part-glazed doors set behind a Roman Doric screen with a dentil frieze and wreath motif, which connects with numbers 14 and 18 and is ramped centrally. The ground floor windows are 6/6 sashes; the sixth bay has a tripartite sash with a 6/6 centre and 2/2 sidelights, all within tooled, eared architraves, moulded sills, and plain corbels. Basement windows include part-glazed doors in the fifth and eighth bays, along with 6/6 and 8/8 sashes. A round-arched staircase window with stained glass depicting a view of Bramshill, Hampshire, is located at the rear. A continuous verandah with an anthemion motif adorns the first floor.

The interior of number 16 features an openwell staircase with tapered rod-on-bobbin balusters and stick balusters to the upper stage, along with a wreathed handrail. Shutters are present on the ground and first floor windows. The ground floor has egg-and-dart cornices, while the first floor has modillion cornices.

Subsidiary features include lancet railings to the sides of the central steps and to the areas, with gates to the basement. The terrace was constructed as part of Clarendon Square, designed around 1828 by PF Robinson and completed around 1832, with the gardens being planted in May 1830. Numbers 11-21 together form a significant group of buildings.