50 To 60, Grosvenor Street

This is a terrace of six houses, now flats, built around 1820 to 1834. The houses are constructed of stucco over brick, with ashlar detailing to the left end, and have a concealed roof. They are arranged with three storeys over basements and originally had 12 first-floor windows. A two-storey, single-bay section is set back on the left. The houses were designed with a double-depth plan, with stairwells on the left side. The second and right-hand houses project forward and have pediments with Doric pilasters extending through the first and second floors. The ground floor, except for the house on the left, also projects forward, featuring Doric pilasters between the windows; these are now largely missing. The ground floor creates a 'loggia' effect. Windows are 6/6 sashes to the left-hand house, with 3/6 sashes to the second floor of the other houses. First-floor windows are mostly 6-pane French windows with overlights featuring margin lights in tooled surrounds. The second floor has 3/3 sashes within architraves and sills. Original 6/6 sashes remain in the ground floor where present. The basement windows are 6/6 sashes where original. A crowning frieze and cornice tops the facade.

The entrances to the left of each house originally led to flights of roll-edged steps and 6-panel doors with fanlights, some with batwing-type glazing bars and margin lights. The entrance to the left-hand house has a distyle Ionic porch with an architrave, a pulvinated frieze, and a dentil cornice.

Interior photographs from 1991 show that No. 52 has double 10-panel doors with a divided overlight, all featuring margin lights, within panelled reveals. It also contains a Regency-style marble fireplace and an egg-and-dart cornice with a ball-patterned ceiling frieze.

The terrace has renewed first-floor balustrades and footscrapers to the top of the steps of No. 50. According to historical records, Grosvenor Street, originally called Gyde Terrace, appears on Merrett's Map of 1834.