No. 2 and Attached Railings

This is a three-storey house with an attic and basement, completed in 1790. It was designed by John Palmer and built by Richard Sartain. The front of the house is constructed of limestone ashlar, with rubble stone to the basement. The rear is of ashlar and rubble, with a double-pile, parapeted mansard roof covered in Welsh slate to the front and artificial slate to the rear. There is a coped gable wall to the left, and two ashlar stacks with some early chimney pots and two very tall 19th-century clay pots to the right. A staircase is located at the rear.

The front of the house features a three-window range. The first floor has three grouped sash windows, with four/four, six/six and four/four panes, some with crown glass. The second floor is similar. The ground floor has two six/six-sash windows, and a simple balconette to the right. The front door comprises six raised and fielded panels, with two upper glazed panels, set within a pedimented doorcase featuring Doric pilasters. A pennant-paved crossover with a cast iron footscraper leads to the door. The basement has two six/six-sash windows. A 20th-century timber and glazed door and screen are located under the crossover, and 20th-century area steps are present. Double dormers with two/two-sash windows in moulded architraves are in the roof. Other external details include a band course above the ground floor, a frieze, a moulded eaves cornice, and a coped parapet. The rear elevation features early glazing bar sashes, and a wrought iron balconette is present on the first floor.

The interior has not been inspected.

Attached to the house are wrought iron railings and a gate with shaped cast tops on limestone bases. A 19th-century wire trellis screen is attached by the front door.

The house was built as part of an incomplete development of St James's Square, on land leased from Sir Peter Rivers Gay. A messuage was underleased to Richard Sartain in 1790 for 96 years. Lower Park Street forms one of the four diagonal approaches to St James's Square.