Church of the Holy Ghost

This is a Roman Catholic church, likely dating to the 15th century, originally a tithe barn that was restored and converted by Giles Gilbert Scott between 1907 and 1913. The building is constructed from red sandstone rubble with limestone dressings and buttresses, and has an old pantile roof with coped verges.

The exterior has a six-bay design, divided by two-stage, weathered buttresses. A projecting gabled porch is situated in the third bay from the north side, containing a Grangers' room above. The porch features a wide, three-centred elliptical archway, rebuilt with a chamfered moulding. Above the archway is a two-light window in the Perpendicular style, with a square head, single transoms, original head tracery, and a replaced rectangular drip-mould. The front elevation of the porch is faced with limestone ashlar. A pointed-arch, chamfered doorway is on the right-hand side wall, with modern exterior wooden steps leading to the room above, and a four-centred arch doorway. The wide inner doorway of the porch has been blocked, pierced by a modern Gothic doorway with an ogee hood mould, and retains the original iron door staples. A corresponding blocked doorway on the rear (north-east) elevation retains its original oak lintel and iron door staples. Loop windows are positioned between the buttresses, with three similar loops in the left-hand (northern) gable. The right-hand (southern) gable has two modern, square-headed Perpendicular windows and three buttresses. Stone cross finials are on the end gables and porch gable.

Inside, the church has an open timber roof with arch braces and collar beams, and two purlins with curved wind-braces between. The loop windows have wide internal splays. The Grangers' room has an upper cruck truss and enriched wall plates, which are currently concealed.

Historically, the building was a tithe barn, belonging to a grange for the Augustinian Priors based in Merton Priory, Surrey. It was converted into a Roman Catholic Church between 1907 and 1913 as a mission of Downside Abbey. A gilt tabernacle dating to 1794, originally from the Bavarian Embassy Chapel on Warwick Street, Soho, is also present.