Gayton is a scattered village in central Staffordshire, some 5 miles NE of the centre of Stafford. It stands on a rise above the Trent, a mile away to the SW, and Gayton Brook, a tributary of the Trent, runs to the N of the village centre. The church is on the W side of the village with a moated site alongside it.
St Peter's has a nave, now with a 19thc. S aisle but previously with a N aisle. This has been removed, the arcade blocked, and the wall rebuilt in brick of the same type found on the tower, and presumably at the same time (1732). The 15thc. N arcade remains visible on the interior, and both this and the 19thc. S arcade are of four bays. The nave has a S doorway only, under a 19thc. porch. The chancel arch is 12thc. but heavily restored, and the chancel was rebuilt in 1870 by Habershon and Pite of London (who were apparently responsible for the S nave aisle too), the work paid for by John Purcell Fitzgerald the Lay Impropriator. It contains a 13thc. wall tomb with an effigy and has a N vestry. The battlemented W tower is of brick and dates from 1732. From the exterior the church appears entirely post-medieval; the tower and N nave wall in industrial-looking red and blue brick and the rest in Habershon and Pite's rusticated yellowish ashlar. The William Salt Library holds two views of the church from the SE, dating from 1838 and 1841, before the S aisle was added (SV-IV.215a and SV-IV.214a). The only Romanesque feature is the over-restored chancel arch.