The nave and chancel of the Church of England parish church of Saint Mary were built shortly after the Norman Conquest of England. The building was damaged by fire in the 13th century. During the 14th century the chancel was enlarged and the north and south aisles were added. At this time the church served a parish including the villages of Chilworth Valery and Chilworth Muzzard, the hamlets of Combe and Little Milton, and the manor of Ascot. In 1850 St Mary's was restored at a cost of £2,000.