C15 chancel and west tower.
Nave has north arcade rebuilt in C16.
East window, C15, of 3 cinquefoiled lights with vertical tracery in a two centred head with a label.
The north and south walls each have 2 C15 windows, similar to the east window but of two lights only.
The north aisle, has a mid C17 east window of 3 square headed lights North wall has 3 windows, eastern is similar to east window.
C15 restored middle window is of 3 trefoiled lights in a segmental pointed head.
Stair turret built against the north side later in C15.
North arcade of 3 bays with octagonal piers and semi octagonal responds with moulded caps and bases standing on early C13 sub bases.
Caps support roughly carved abaci from which spring round arches of one stop chamfered order.
Nave roof, C15 trussed rafter with curved braces with moulded ribs and bosses.
North aisle has a C16 lean to roof.
Pulpit: oak, 5 sided with moulded cornice and panelled base, early C17.
SY6489 : Winterborne St. Martin: pulpit
Communion rails and table, both C17.
Monuments: C18 and C19 stone and marble tablets in nave, to T Masterman and Mary his wife 1763- 1757.
Also Richards, Guppy and Hawkins monuments, signed Raggett, Weymouth. (R.C.H.M. Dorset II, p.391 (1)).