64 and 66, Harley Street W1

These are a pair of terraced town houses located on Harley Street, dating from around 1773 as part of the Portland Estate development. They were likely designed by John White, in collaboration with the plasterer Thomas Collins, who were associates of Sir William Chambers. The houses are constructed of stock brick with a channelled stucco ground floor, and have slate roofs. Number 64 is five storeys high, while Number 66 is four storeys with a dormered mansard roof, both standing on basements. Each house has a three-window front.

The doorways are semicircular and arched, one on the left and one on the right, respectively. Number 66’s doorway has a vermiculated Coade stone rustic surround, a head keystone, and an added early 20th-century Neo-Adam cast iron porch with glazed panels. The doorways have panelled doors with sidelights and fanlights. The upper floors have recessed sash windows, each set under a flat, gauged arch. There are plat bands on the first floor; a stucco cornice over the third floor of Number 64; and parapets with copings. Mid-19th century cast iron balconies are present on the first floor. Cast iron area railings are also present, with Number 64 having flambe urn finials.

The interior spaces have undergone alterations around 1900, but retain noteworthy features including geometrical stone staircases with elegant wrought iron balustrades. Number 66’s staircase has a swagged husk ornament surrounding its oval skylight drum. Frieze mouldings of simple flute and patera designs, along with good stucco mythological relief medallions over the chimney pieces—framed with swags and ribbons, and reflecting the style of Sir William Chambers—are also present. These features are consistent with high-quality speculative houses built in Harley Street during the 1770s.