20 and 21, Old Bond Street

20 and 21 Old Bond Street are two end-of-terrace houses that also serve as shops and offices, dating from around 1760. They are constructed from limestone ashlar and feature slate roofs. The properties are deep, double-depth buildings with mansard roofs, designed in the style typical of John Wood's domestic terraces.

The exterior consists of three storeys, an attic, and a basement, with each house having three windows on the main floors. The windows are all sash types, framed in moulded architraves, and feature cornice hoods above the first floor. The second and fifth bays have triangular pediments. Each house has two dormers; No. 20 has plain dormers, while No. 21's dormers have bars. The second floor windows are twelve-pane, and the first floor windows are plain.

No. 20 has a mid-19th century, altered projecting shopfront beneath a deep projecting entablature with a modillion cornice. To the right, there is a three-panel door with a deep transom light. No. 21, which is indicated as a bank on the Ordnance Survey map, features an early 20th-century triple-arched ground floor made of polished grey granite, with a central door. The channelling of the granite continues to the voussoirs, and the detail extends to five bays on the return side, all under a cornice and a deep band below the first-floor sill band. The modillion cornice and blocking course extend from the adjacent No. 19 and continue around the return to Quiet Street, where there are five bays. The high attic has a central four-pane sash and two blind lights on each side, above two twelve-pane windows and three painted-in windows. The first floor has three plain windows and two blind windows, matching the detail of the main front but without pediments. The granite ground floor has an additional arched bay to the right. Coped party divisions are present to the left of each house, along with deep ashlar stacks. The interiors have not been inspected.