Front elevation of houses at 26-35 Trevor Place, Knightsbridge, looking north. Trevor Place and adjoining streets were laid out on the site of Powis House, the late seventeenth-century mansion of the Trevor family. The architect William Fuller Pocock developed the estate, and laid out Hill Street c1827 (renamed Trevor Place in 1936). 25-36 Trevor Place was built 1847-52, completed after William F. Pocock's death in 1849 by his son, William Willmer Pocock. Number 36, the corner house, was originally 36 Trevor Place but was re-numbered to 45 Montpelier Square. 25-35 Trevor Place is a terrace of three-storey houses with basements, iron railings at ground level, first-floor balconies and decorative stucco to windows and parapet. Some houses have had roof extensions added. A number of cars are parked on the street and there a skip in the foreground. Hyde Park Barracks Tower, a 33-storey residential tower block, is visible across Knightsbridge, designed by Sir Basil Spence and built in 1967-1970 by Sir Robert McAlpine. The houses of 26-35 Trevor Place are named as unlisted buildings of merit by Westminster Council and lie within the Knightsbridge conservation area designated in 1968, and are still extant, as is Hyde Park Barracks Tower.