No.33 and Attached Railings

No. 33 is a house dating to circa 1790-1793, with alterations from the 19th and 20th centuries, designed by John Palmer. It is constructed of limestone ashlar to the front and rear, with a Welsh slate, double-pitched, mansard roof. The roof has a coped gable wall and two ashlar stacks, one having some early clay pots. A staircase is located to the rear.

The house is three storeys, attic, and basement, arranged as a two-window facade. The first floor has two 19th-century plate glass sash windows with hornets and wrought iron balconettes. The second floor has two six/six-pane sash windows in plain reveals. The ground floor has a 19th-century plate glass sash window with a stone sill to the right, and a door to the left with two reeded and two raised and fielded panels, a single glazed panel above and a 19th-century cast iron knocker, all within a pedimented Doric doorcase. Two steps lead to a pennant-paved crossover with a cast iron footscraper. The basement has a six/six-pane sash window with a stone sill and a plank door, alongside a two-light window within an ashlar infilling beneath the crossover; C20 area steps are also present. A double dormer window has two/two-pane sashes with a moulded architrave. Architectural details include a band course over the ground floor, sill bands to the first and second floor windows, a frieze, a moulded eaves cornice, and a coped parapet. A lead hopperhead and a short length of lead pipe are at the eaves to the right. The rear elevation retains early glazing bar sash windows and a wrought iron balconette to the second floor. A double dormer window features two/two-pane sashes. A single-storey extension and a cantilevered bathroom extension, built in ashlar, project from the second half landing.

The interior was not inspected during the listing process. Attached are wrought iron railings and a gate with shaped heads on limestone bases.

The house is part of an incomplete development of St James's Square, on land leased in 1790; the upper part of Park Street began to John Palmer’s design and was continued, but not completed to the design of John Pinch, after 1808. The street formerly terminated with All Saints' Chapel and was intended to be continued northwest as Regent Place.