Austrey had a parish church by 1155. The oldest part of the present Church of England parish church of Saint Nicholas is the Early English Gothic tower, which was built in the middle of the 13th century. The remainder of the church was rebuilt early in the 14th century in the Decorated Gothic style. The nave has a clerestory and is flanked by north and south aisles, each of four bays. The Gothic Revival architect Ewan Christian restored the chancel with new windows in 1844–45.