No. 6 and Attached Railings

This is a house, completed in 1792, with later 19th and 20th century additions. It was designed by John Palmer and built by John Jenkins. The front of the house is constructed from limestone ashlar, while the basement is of rubble. The roof is a double-pile, mansard style with Welsh slate, a coped gable wall, and ashlar stacks incorporating some original clay pots to the left. A staircase is located at the front.

The house is three storeys high, plus an attic and a basement and sub-basement, and has a two-window facade. The first floor has two 19th-century plate glass sash windows with horns, set in plain reveals and with stone sills. The second floor has two similar windows. The ground floor has one similar window to the left, and a six-panel door with a flush, raised and fielded design, and upper glazed panels, with an iron knocker within a pedimented Doric doorcase, accessed by one step to a pennant paved crossover. The basement has one six/six-sash window in a plain reveal and stone sill, a blocked opening to the sub-basement, a 20th-century door, and a single light casement window set within an ashlar infilling beneath the crossover. There are no area steps. A single dormer contains a two/two-sash window.

The rear elevation features a band course above the ground, first, and second floors. A wrought iron balcony with wrought iron supports and a zinc roof is positioned over the first-floor windows. A ground-floor centre window has a timber panel below, forming a door to attached steps leading to a garden with a wrought iron handrail. There is a small ashlar extension to the basement, as well as a double dormer.

The interior was not inspected during the listing process.

Attached to the property are wrought iron railings with urn tops on limestone bases.

The house was part of an incomplete development of St James’s Square, built on land leased from Sir Peter Rivers Gay on 25 March 1790. Lower Park Street forms one of the four diagonal approaches to St James's Square. An underlease of the property to John Jenkins was granted on 31 January 1792 for a term of 95 years from 24 June 1791.