Shortly after this the church became collegiate, with the head of the college the canon who held the prebend at the cathedral.

Their income included tithes from Tytherington, where there was a chapel, and from Horningsham; the churches of Hill Deverill and Swallowcliffe; and land at Wilton.

[5] Most collegiate churches were abolished in 1547 as part of the Reformation but Heytesbury continued until it was suppressed, along with the other remaining non-residential deaneries, by the Ecclesiastical Commissioners Act 1840.

Restoration in 1864-7 was by William Butterfield and included rebuilding of the north and south aisles; interior work included the addition of a coloured marble font in the south aisle, new pews, a polychrome tiled floor, and stained glass by Alexander Gibbs.

[3] Pevsner criticised the restoration, describing the buildings as "A large and impressive church, but an over-restored one [...] which makes it externally more rewarding from a distance than from near by and internally disappointing in spite of its undeniable grandeur".

[16] Parish registers survive from 1653 and are held by the Wiltshire and Swindon History Centre at Chippenham.

[17] The current A Church Near You page suggests that Communion is celebrated in Heytesbury on the first Sunday of the month.