The church consists of a 12thc. nave with a later medieval N aisle, a chancel of 1624, a S porch and a 13thc.-15thc. W tower. There is Romanesque sculpture in the S doorway of the nave and on fragments set into the interior S chancel wall.

In 991 land at Ashton belonged to the Bishopric of Worcester, but it seems later to have passed to the crown. Until 1931, the parish lay within Gloucestershire. In 1066 Turbert, a royal thegn, held eight hides, which by 1071 had been joined to Beckford manor. In 1086, Girard held four hides at Ashton. The estate may then have passed to the lords of Tewkesbury manor. In 1071 the church of Ashton was granted, with that of Beckford, to Cormeilles abbey.

The capitals of the S doorway, which are less refined than those of nearby Beckford, may be of the late 12thc. The weathered condition of the doorway indicates that it was exposed for a long period before a porch was built.