9-12 Vincent Square at Former Raf Biggin Hill

This is a terrace of four houses, built in 1929 as part of a larger group of 26, by the Air Ministry's Directorate of Works and Buildings. The terrace is located on the west side of Vincent Square, near the northern end, and forms part of a well-preserved group of married quarters that predate the RAF’s expansion period after 1934. The area is historically significant due to its connection with a nationally important aviation site. Land for the married quarters was purchased between 1923 and 1925.

The terrace is two storeys high and arranged in a short, straight line. It has a hipped roof to the right and a gable to the left. Each house has a right-hand entrance, leading to a living room, dining room, and kitchen on the ground floor, and three bedrooms above. Originally, each dwelling had four open fireplaces, with two fireplaces on each floor shared with the adjacent house.

The exterior features painted brickwork, cavity brick walls, a slate roof, and leaded bay windows. The windows are generally plain wooden sash windows, set within half-brick reveals, with concrete sills. At the first floor, four windows are separated by narrow brick piers, with the outer windows narrower than the central ones. Below these, a flat-roofed, canted bay window features brick mullions, a large central window, and smaller side-lights. A flush-panelled door, with a square glazed top panel, is recessed behind two steps, sheltered by a flat concrete hood with a roll-moulded edge, supported on concrete brackets. Large ridge stacks are positioned to the left of each house, with an additional end stack to the left, all featuring deep, stepped cappings.

The end returns are plain, and the rear elevation includes a double sash window with a brick mullion on the first floor, above a replacement casement window, a door to the left, and a small side light. A datestone bearing the carved date '1929' is present. The eaves are simple, with a clipped gable verge to the left.

The interiors were not inspected, but the houses have been restored by a Housing Association as part of the wider renovation of Vincent Square.