90, Harley Street W1

90 Harley Street is a corner terraced town house built in 1912 by Sydney Tatchell. It is constructed of Portland stone, with a channelled ground floor, and has a slate roof. The architecture combines Free Neo-Palladian and Dixhuitieme (18th century) styles with sharply profiled detailing. The building is four storeys high, with a basement and dormered mansard roof. It has three windows facing Harley Street, and a return of three windows grouped to the right on Weymouth Street, with a two-storey wing beyond.

The Harley Street facade features a projecting, channelled and swagged entrance “pavilion” on the left. This has a deeply set, splayed, semicircular arched doorway. The ground floor windows are recessed sashes with channelled flat arches. The first floor windows are sashes set within pulvinated architraves, with a continuous cornice that breaks forward above them. The second and third floor windows are vertically linked by apron panels, set in architraves, with eared detailing on the second floor and linking swags between console brackets on the third floor. A plat band runs over the ground floor. The building has a cornice with a fluted frieze and a balustraded parapet. Quoins are present on the Weymouth Street return, along with a blind-arched chimney stack and three closely spaced windows. The cornices and decorative details are returned from the front facade.

The two-storey wing has a colonnaded first floor, and connects with the contemporary number 90A, also designed by Tatchell. A wrought iron balustrade is above the entrance “pavilion”, matching the design of the balconettes on the other first-floor windows. Cast iron ornamental area railings are also present.