The only Romanesque sculpture in the church is the S doorway.

East Wittering, but not its church, is mentioned in 1086. The church is thought to have originated as the private chapel of Oliver de Wystringes, who held the manor of the bishops of Chichester. Oliver held part of a knight's fee of the Bishop in 1166, and towards the end of the century he gave the church and the house and croft of the chaplain to Chichester Cathedral.

At the time of visiting the Chapel was undergoing conversion into a museum of 20thc. paraphernalia (1990).

The chevron on the S doorway archivolt is similar to that on the Canon Lane doorway in Chichester, and on the S doorway of North Marden. It is, however, much flatter and is centripetal while these other examples are centifugal. At East Wittering the discs are on the inner points of the chevrons; at Chichester and North Marden they are between the inner points. The segmental arch of the inner order may be post 12thc. The voussoir in the facing of the S nave wall is probably one of those replaced by a modern copy.