Though a small church, it is a palimpsest of varied medieval and post-medieval work. The nave has a 13thc S arcade, a 14thc N wall, and a late 14th or 15thc S wall and clerestory. The W tower was rebuilt in the 18thc and the chancel windows thoroughly renewed during Fowler’s restoration of the church in 1876. The chancel arch is 12thc.

Domesday Book records a church and a priest at Old Somerby in 1086 on land held by Walter of Aincourt. In 1250, the advowson of the church belonged to William of Paris, a citizen of Lincoln.

On the E side of the chancel arch, some of the arches on the sunk-relief arcade of the label are not aligned with the arches adjacent to them. This is likely due to resetting.