Nave and chancel, largely rebuilt by J. C. Buckler in 1854 but preserving their basic original lines. The papers relating to the restoration specify the retention of the Romanesque features (VCH, Oxon. viii, 172). The N and S chancel walls each contains a round-headed window decorated internally with a large continuous nook-roll springing from tall attic bases with a hollow scotia (Rigold's type 59); the N window is largely genuine internally (but 19thc. externally), but the S window is Victorian.

Pyrton (formerly Readenoran) was a minster church founded in the late 9thc. In the early 12thc. the church was given by William fitz Nigel to Runcorn (later Norton) Priory in Cheshire (VCH, Oxon. viii, 168).

The canons of Norton were presumably responsible for the Romanesque work at Pyrton, but there is no evident similarity with anything now remaining at Norton.