[4] The church was restored in 1878–80 to designs by CE Powell[4] and is a Grade II* listed building.

All that remains of the original Norman church are a door in the north wall, the arched pillars and possibly the baptismal font.

In about 1320 the chancel was built, part of the north wall was widened and the south aisle was added to form chantry chapels.

The ceiling is Victorian and bears the coats of arms of five successive families of the Manor of Chastleton: Trillowe, Catesby, Jones, Whitmore and Whitmore-Jones.

The altar was designed in 1993 by Mr Poole from the nearby village of Oddington, Gloucestershire and matches the adjoining 14th-century pillars.

[3] The carved woodwork behind the altar may well be the remains of the rood screen which once stood above the chancel arch.

These replaced Jacobean oak benches and pews with high backs, of which three remain in the South aisle chapel.

[citation needed] The organ now hides a stone piscina,[5] which is the only sign of a former chantry chapel.

[citation needed] Henry III Bagley, who had a bell-foundry at Witney, cast the fourth and fifth bells in 1731.

[citation needed] The Whitechapel Bell Foundry re-tuned them and Whites of Appleton re-hung them in a new steel frame.

[citation needed] The bells are rung regularly by a team from the village, supported by ringers from the nearby parish church at Salford.

[7] On the north side of the church yard, adjoining Chastleton House and near the north door of the church, lies the tomb of Sir Richard Westmacott (1775–1855), perhaps the greatest monumental sculptor of the Victorian era.

[8] In 1602, after a heavy fine imposed for his involvement in the Essex Rebellion, Catesby was forced to sell Chastleton House to Walter Jones.

Their nine children were John, Thomas, George, Robert, Mary, Katherine, Elizabeth, Anne and Margaret.

Of his four sons, who all remained unmarried, the last died in 1874 and the house passed to the eldest of six daughters, Mary who became its first female heir.

Alan, who was a fellow of King's College, Cambridge died in 1976, but Barbara remained until 1992, when the house was sold to the National Trust.

Mr and Mrs CT Richardson were tenants at Chastleton House between 1896 and 1933 and made many important restorations to the layout of the gardens.