No.13 and Attached Railings

This is a late 18th-century house, built around 1790 to 1793, with alterations in the 19th and 20th centuries. It was designed by John Palmer as part of an incomplete development of St James’s Square. The front is faced with limestone ashlar, while the basement is of coursed limestone rubble and the rear is cement render. The roof is a mansard style with Welsh slate, featuring coped gable walls on the left, ashlar stacks with some original clay pots, and an external axial stack at the rear.

The house is three storeys high, with an attic and basement, and has a three-window front. The first floor has three 19th-century plate glass sash windows with lowered stone sills and splayed reveals. The second floor has three six/six-pane sash windows with plain reveals and stone sills. The ground floor has two 19th-century plate glass sash windows, with splayed reveals and stone sills, and a six-panel door with a single-pane overlight, set in a splayed reveal. The basement has two six/six-pane sash windows, a plank door, and a single-light window set within an ashlar infill. A double dormer window features two plate glass sashes. Architectural details include a band course over the ground floor, a lintel, a moulded eaves cornice, and a coped parapet. The rear elevation features 19th and 20th-century windows, including 19th-century fixed lights with coloured borders on the half landings. A 19th-century ashlar extension with a Welsh slate hipped roof extends from the basement to the first half landing level, with further small extensions. The interior details have not been inspected.

Attached to the property are wrought iron railings and a gate with urn tops on limestone bases. The house was built on land leased from Sir Peter Rivers Gay, and the street was originally intended to be continued as Regent Place.