North wall mostly rebuilt 1828 but earlier walling survives to left of transept with blocked 4 centred arched opening probably C15, also short length to right of transept.
South aisle walling is C15 interfered with in 1828 and 1899.
Barrel vault is rebuilt slightly pointed to fit 2 centred granite inner doorframe probably C14 and partly obscures niche over thus showing that porch stonework altered.
2 stage west tower is probably late C14 and has north west and south west diagonal buttresses with offsets, stair turret to north at east end, plinth and strings with ashlar battlements and slender corner crested pinnacles.
Interior of nave has 4 centred arch with standard A type (Pevsner) responds to north transept, recess of blocked opening to east of transept and 6 bay arcade between nave/chancel and south aisle with octagonal piers and 4 centred arches of 1899 rebuild but including 2 reused C15 pier shafts at east end.
James II painted coat of arms (one of only 4 in Cornwall), painted coat of arms of 1831 small C17 oak panel with guilloche moulding in chancel.
a tablet with draped urn on south wall to Flag Lieutenant Frank Woodridge 1833 and a small stone tablet on arcade respond by tower arch inscribed P C 1712 with pierced hearts carving under.