1, Duke Street W1

No. 1 Duke Street is a terraced house built between 1776 and 1788 as part of the Duke of Manchester's development of Manchester Square on Portman land. The building is constructed of stock brick with a channelled stucco ground floor and has a concealed slate roof. It stands four storeys tall with a basement and features two windows across its front. The doorway is located to the left and is framed by composite pilasters that support an entablature, leading to a panelled door and fanlight. The windows are recessed sashes set beneath flat gauged red brick arches. The stuccowork on the ground floor is finished with a plat band at the level of the first-floor sill. The building is topped with a parapet that has stone coping, and it is enclosed by cast iron area railings with urn finials.