The pagoda rises up in a series of crenellated semi-circular terraces overlooking the river.
Interior fittings include a rustic altar rail with a crenellated upper surface, dating from the 17th century.
The crenellated wall stands for the fortress church estate, which has the parish churchs quire tower rising above it.
In the early 19th century the east and west sides of the hall were crenellated, and the roof was re-slated.
In 1842-43 the uppermost crenellated parts were replaced with the present lantern.
The summit is crowned by crenellated battlements on three sides only, the inner side facing the gate being left open and free.
At each end of the crenellated curtain wall was a rectangular tower.
The central steeple has two-light belfry louvres and a crenellated parapet.
