11, Buckingham Street WC2

No. 11 Buckingham Street is a terraced town house built around 1675, with some early 19th-century alterations. It is part of Barbon's development of the York House estate. The building has a stucco facade, with the original brown brick exposed at the rear, and features a slate roof. It stands three storeys high, with a basement and a dormered attic, and has six windows across its front.

The entrance is located in the third bay from the left and features a recessed panelled door with a fanlight, framed by an early 19th-century stucco pilaster surround that includes an entablature and blocking course. The windows are slightly recessed sashes with exposed box frames, and the flat arches above them are adorned with carved head and lion mask key blocks. The building also has rusticated quoin pilasters and plat bands over each floor that run across the key blocks. A parapet, which is panelled in line with the windows, is topped with moulded coping. At the rear, there are flush framed glazing bar sashes set under flat gauged brick arches. The property is enclosed by wrought iron area railings topped with urn finials.

Inside, the house retains several original and late 18th-century features. The hall and the front and rear rooms on the first floor have bolection panelling. The two front rooms feature shallow, geometrically patterned plasterwork ceilings and friezes in the Adam style, with the north room showcasing a carved wood chimneypiece set in a coved recess between a small secondary staircase and a cupboard. The south first-floor rear room has an overmantel that is carved in light relief. The main staircase has a narrow open well, with turned balusters and carved cut strings on the lower flights, and closed moulded strings on the upper flights, along with a panelled dado.