The north chapel has an ashlar stone plinth and a battlemented parapet. A moulded string course with gargoyles is topped by a battlemented parapet. The porch is in two storeys, with angle buttresses and a battlemented parapet with gargoyles. The walls are topped with battlemented parapets along with regularly spaced box shaped guardrooms. Roof to tower is a flat membrane, with battlemented parapet. The entire building has a battlemented parapet. The tower is topped with a spire, rising "from behind a battlemented parapet". The parapets are battlemented, with the usual walk along the top of the walls. The tower is in three stages with a battlemented parapet, and a small north window. On the east side is a gatehouse with battlemented towers. The building is mainly in two storeys, and much of it has a battlemented parapet. Originally a semi-fortified and battlemented structure it underwent extensive alterations in the 18th century. Each tower had a battlemented terrace on the top. It has a two-storey porch, battlemented like the tower. The church has a three-stage battlemented tower housing a ring of three bells.