[1] Wennington Church is recorded as being in the possession of Westminster Abbey during Richard de Belmeis' term as bishop of London early in the 12th century – this may be one said to have been given to the Abbey by Ætsere the Swarthy and his wife Ælfgyth before the Norman Conquest.

The south aisle was knocked down around 1600, and extensive repairs occurred early in the 18th century.

The church had fallen into disrepair by 1874 but was restored and expanded to meet a growing local population in 1885 and 1886, by rebuilding the south aisle, adding new chancel windows and an organ chamber, converting the base of the west tower into a vestry, and removing a west gallery.

On 19 July 2022, the church survived a wildfire which destroyed much of Wennington village.

[4][5] The present building is medieval with a 12th-century doorway reset in the vestry,[6] early 13th-century font, parish chest, chancel piscina, chancel, nave and south aisle, and early 14th-century north aisle.