The 12thc. features of the church are the nave, the S nave arcade and the W part of the chancel. In the later 12thc. or the early 13thc. the S aisle was widened and lengthened, and an arched entrance made into the chancel. There is a 14thc. W tower of sandstone ashlar, and a timber porch. The church is otherwise mainly built of red sandstone rubble, but the 12thc. work inside is of a pale grey stone. Romanesque sculpture is found in the niche or blocked window in the exterior N nave wall, which until 1970 contained a carved relief of Christ, now inside the church, in the chancel and S chapel arches and in the S nave arcade. The font is probably 19thc., but shows Romanesque features.

Before the Conquest and in 1086 the manor of Leigh was held by Pershore Abbey; Pershore possessed relics of St Eadburga, and there was a chapel dedicated to her there.

Pevsner proposed that the carved panel of Christ was in fact a reused coffin lid, ofc.1220, but the Victoria and Albert Museum supported the VCH's dating ofc.1100. Tudor-Craig (1989) suggests a mid-11th century date for the panel and points out that it is unlikely to have been a coffin lid, given its subject. The blocked window or niche on the N nave wall is set at a similar height to windows and blank windows at Rock (Pevsner), but that at Leigh may be earlier; like the chancel arch, it probably dates from the early 12thc. The motifs on the top band of the font are related to decoration on the font at Suckley; Stratford in Pevsner 1968 (211, fn.) questions the authenticity of the Leigh font, however. The S chapel trumpet capitals with recessed circular shields resemble sculpture at Dodderhill, and there are also affinities with capitals in the S chapel arch at Stoke Prior. Those at Leigh appear to be later than these others, and may date from the very early 13thc.