Originally a Catholic church in the form of a simple barn-like structure erected in 1135, the Anglican church of St. Mary the Virgin is the most charming in the area. The current structure is from c. 1250 and there is a Tudor font dating from 1495.
My Open House. St Mary’s Perivale by Mike Paterson (via London Historians' Blog):
Surrounded by swanky Ealing Golf Course and a less-swanky Premier Inn, it sits south west of the Hoover Building, separated from the Art Deco masterpiece by the Western Avenue. Before reaching the church you see its pretty lych gate (sponsored by the widow of John Boosey of Boosey & Hawkes, who is buried outside the church).
Unless you knew it were here, you would never see it. I was unaware it existed until someone told me a few months ago. Although used for classical music concerts, it has not held services since the early 1970s, although it remains consecrated.