The parish church, with its two lofty towers, is substantially a Romanesque building of the 13th century, but the choir and transepts are Gothic additions of a later date.
Nowadays, not even the models looked alike, altered by porches and additions and a variety of landscaping tastes.
The cruciform church of St Mary, with a central tower and short spire, is in great part Early English, with Perpendicular additions; but considerable traces of a Norman building were revealed during a modern restoration.
Among later additions were gunmounting stores, boiler shop, boat sheds, canteen, coal stores, &c., together with a double dock 750 ft.
Their restoration was somewhat drastic, the ancient parts being cut away to allow of additions in marble, and the new parts treated in imitation of the ancient weathering.