No. 15 And Attached Railings

This is a house, now converted into flats, built around 1786, with later 19th and 20th-century additions and alterations. It is attributed to the architect John Palmer. The front of the house is constructed from limestone ashlar, while the rear uses a combination of ashlar and rubble. It has a double-pile, parapeted mansard roof covered with Welsh slate, with a coped party wall to the right and two ashlar stacks at the front and rear. A staircase is situated at the front.

The house presents a three-window front across three storeys, an attic, and a basement. The first floor features three six-over-nine pane sash windows in splayed reveals, incorporating wrought iron balconettes and stone sills. The second floor has three six-over-six pane sash windows with simpler wrought iron balconettes in plain reveals. The ground floor has two six-over-six pane sash windows with wrought iron balconettes, stone sills, and a six-panel door with fielded and glazed panels within a chamfered reveal, reached by a single step leading to a concreted crossover with a wrought iron footscraper. Basement windows are six-over-six pane sashes with a continuous stone sill, accompanied by a 20th-century six-panel door and area steps. The roof includes one double-dormer and one single-dormer, both with plate glass sashes. External features include a weathered sill band to the second floor, a moulded eaves cornice, and a coped parapet. The rear elevation incorporates glazing bar sashes with wrought iron balconettes on the first and second floors, along with double and single dormers and a 20th-century single-storey flat-roofed extension. The interior has not been inspected.

Attached to the house are wrought iron railings and a gate, distinguished by urn tops and urn finials on thicker sections of railing with painted limestone bases.

The house's development was linked to Portland Place and was initially managed by John Hensley, who leased land from the legatees of Morford’s Estate. The freehold land was conveyed to Hensley and William Phillips before being transferred to Daniel Tanner as trustee. The building is valued for its group value with other properties in Burlington Street and Portland Place and is an example of the architectural style of the late 18th century.