Plain tile roof.
Chequered red and grey brick, with plain tile roof.
Interior: structure: pointed C13 chancel arch, plain-chamfered to east and with hollow-chamfered imposts.
Low pointed-arched C13 west doorway with continuous double-quirked roll moulding to its west face, visible from within C19 west lean-to.
Fittings: octagonal stone font with panelled sides and octagonal stem with moulded capital and base.
TR1942 : St Martin, Acrise - Font
Monuments: monument on south wall of nave, to William Turner, d.1729.
Monument to Lionel Mackinnon, d.1854, on north wall of nave
parchment scroll with chamfered cornice, and triangular pediment carved with military trophies, with antefixae and black marble back plate, signed T. Gaffin.
Monument on north wall of nave, to Thomas Papillon, d.1838.