Osterley Mansions

Osterley Mansions is a pair of almshouses built in 1860 for the Saddlers' Company, originally known as the Honnor Almshouses, and later converted into flats in the late 20th century. The building features a red brick facade laid in Flemish bond with stuccoed details, while the rear is constructed of London stock brick, topped with a slate roof. It is designed in the Neo-Jacobean style.

The exterior consists of two storeys with a ten-window range on the east front. This front is divided by five full-height window bays that end in shaped gables with obelisk pinnacles, except for the wider central bay which lacks a pinnacle. The gable heads contain shallow rectangular niches in the center bay and arched niches in the other bays. Each bay features paired 2/2 horned sash windows on both floors, with the central bay having double the number of sashes. Each sash is separated by an ovolo-moulded king mullion, and smaller side sashes are present in each bay. Above the two symmetrically placed doorways, there is one similar window in each bay. The door surrounds have semi-circular arches on pilasters with acanthus capitals and pediments. An ovolo stringcourse runs at first-floor level into the north and south returns. The main gables on the north and south sides are shaped and have internal stacks at their apexes, with three additional ridge stacks.

Recessed against the north and south returns are two-storey, single-window ranges with sashes as previously described, featuring hipped roofs. Each internal porch has two doors, each with three panels and three square stained glass upper lights, along with rectangular leaded overlights that include stained glass. The northern pair of doors has the upper two panels glazed.

The rear elevation displays a mix of fenestration with 2/2 and 10/10 unhorned sashes under gauged skewback arches. There are two central doorways accessed by steel staircases with balustrades, and one doorway on the first floor to the north and south, also with steel staircase access. The interior was not inspected.