C16 additions.
Stair turret at north-west corner corbelled out in angles between wall and buttress with a trefoil arch over carved heads.
Top stage defined by row of corbels, with a small single-light window with two-centred head on south and east walls, the parapet has carved gargoyles.
South porch is C15 and timber-framed with cambered tie-beam bearing a central grotesque, king-post roof and decorative bargeboards.
Stained glass of C14 in east window containing numerous figures including Christ in Glory, Coronation of the Virgin in two lights, various coats of arms and Tobias and the Angel Raphael.
Placed over altar in south aisle is a framed cartoon by Sir Frank Brangwyn for a stained glass window of the Crucifixion. (RCHM, 3, pp 80 - 82