There are two churches on the same site: S of St Mary's is the redundant later church of SS Cyriac and Julitta. St Mary's has a four bay Perpendicular aisled nave with a clerestorey and an aisleless chancel, largely dating to Sir Arthur Blomfield's restoration of 1878 but with blocked round-headed windows to N and S. All of this is attached to a spectacular 12thc. W tower with a later doorway under a porch. The tower has a square lower storey with plain windows to N and S; an octagonal second storey on squinches with more elaborate 12thc. windows to N, S and W; a 16-sided third storey with pointed lancets; and a 16-sided later fourth storey with a modern parapet, all surmounted by a lead spike. There are string courses between storeys. Inside, the tower is open for the first three storeys, but the lowest has been vaulted at some point and the W side of the tower arch cut away. Construction is of flint and pebble rubble.
