The massive Norman tower dominates the site. The Norman arch above the west door exhibits the characteristic Norman zig-zag decoration. The top stage of the tower with battlements was added in the 15th century, while the single brick buttress supporting the base was a 19th century addition. The church is Grade I listed
The church is at the top of a hill and so the tower would have had a role in defence of the settlement. A former spire was blown down during a gale in 1702 and never rebuilt. All that survives of it is the 15th century angelus bell, which is now in the cupola built in the 18th century in place of the spire.