tower added circa 1300
additions of circa mid C15.
Slate roofs with ridge tiles and gable ends
the south transept retains some hand-made crested ridge tiles.
Circa 1300, the west tower was added.
Circa mid C15, the south aisle was added, with south transept and south porch.
2- light north window, probably C14, with trefoil lights and upper hexfoil, with 2- centred arch, hood mould and relieving arch.
To south, at the east end there is a C15 3-light window with 4-centred arch and hood mould, cusped lights and C19 mullions.
Granite inner doorway with triple roll- mouldings, 4-centred arch with recessed spandrels with quatrefoils, C17 plank door with studs and fleur-de-lys strap hinges on the inside.
The north transept has unceiled wagon roof of C15, with moulded collar purlin and chamfered wall-plate.
The south transept has 4-centred arch with wave and hollow mouldings, Pevsner A-type piers with carved capitals as in the south arcade.
The south wall of the nave has Royal Arms of George IV, dated 1820, oil on board in moulded frame, signed John Blee, painter, Truro.
Monuments in nave: warble tablet on slate ground, to Joseph Hosken, 1780
In south aisle: a fragment of an C18 slate with verses and carved border.
In chancel: Gothic style marble monument on slate ground, to James Hosken, 1839, by Pearce of Truro
marble monument with sarcophagus, on slate ground, by Pearce of Truro, to Joseph Hosken, 1833
marble monument with pilasters and draped urn, with apron, on slate ground, by Isbell of Truro, to John Hosken, 1810
a group of marble monuments on slate ground, to Richard and Frances Hosken, 1872 and 1858, to Jean Logan, 1838, Alicia Findlay, 1907 and Constantia Hosken, 1916.
Late C19 stained glass in chancel and south aisle.