A cruciform church of impressive size. The 2-bay chancel is 13thc and rib-vaulted. The crossing tower is Romanesque, much rebuilt in the 19thc, and on the exterior its bell openings are late 12thc in style but apparently Victorian. Some of the crossing piers have surviving genuine 12thc sculptural detail. The transepts have later W aisles. The nave is also 19thc recreation, but the responds of the nave are genuine. 

The manor was held by the Bishop of Winchester and Havant was worth £8 to him in 1066 and 1086. He also retained the advowson of the rectory through the Middle Ages. The rectory was worth £28, 13s, 4d in 1291.