Some remains of the mediaeval building can still be seen, for example the stone blocks incorporated into the walls on each side of the organ. In the crypt, parts of the old church walls of chalk and flint are visible, and some later Tudor brickwork. A drawing made of this building in 1623 has survived. Although the artist had difficulty representing the perspective of the old church, this drawing is the only remaining evidence of its appearance. A few memorials from the old church have survived.