Survived Chantry Act 1545 and is sole survival of collegiate church in Cornwall.
Circa early C15 with west tower added in circa later C15, restored in mid C19 and in 1937-8.
North and south aisles with 4 C15 Perpendicular windows in 4-centred arches with hoodmoulds and partly renewed mullions.
Fine circa C15 waggon roofs to nave, chancel, north and south aisles and porch.
Principal rafter dated 1675 found during restoration, suggesting previous C17 repairs.
Nave with carved ribs with 2 plain ribs between, 5 carved longitudinal ribs and partly restored carved wall plates
chancel with moulded ribs and carved wall plates
north aisle with carved ribs with 3 plain ribs between and 3 carved longitudinal ribs and south aisle with moulded longitudinal and transverse ribs.
Both with carved wall and arcade plates.
The carved bosses in the waggon roofs have been partly restored with 3 in nave, 5 in north aisle and most of those in south aisle remaining intact.
5 ancient carved angels at base of ribs with remainder carved in Exeter and by local joiner circa 1900 to 1930s.
North and south aisles with 5-bay arcades with type A (Pevsner) granite piers, moulded bases, carved capitals of differing patterns, partly replaced in south aisles and 4-centred moulded arcade arches.
North and south aisles with C20 benches and bench ends carved locally by Trelights.
South aisle with altar tombs or lower part of shrine to St Endelienta comprising circa 1400 altar of Catacleuse stone attributed to the Master of St Endellion.
Holy water stoup by south door also attributed to the same hand, of Catacleuse stone with carved arms of Roscarrock, Chenduit or Cheney and Pentire.
Font cover memorial 1914-1919.
Memorial
North aisle C16 ledger stone of Joh'is Roskarrock with marginal inscription and cross in relief.
On north wall memorials to Samuel Billing of Port Isaac, 1839
South aisle with C19 memorials to the Gray family on the south wall and several good ledger stones on floor including those to Thomas and Mary Broad, 1753 and 1758
At west end, ledger stone with indents for brasses.
Chancel with memorial to the Philip family by Caffin and Co, 1876 and also C19 memorials to the Trevan family.
Fragment of wall painting at west end of north aisle.
1974 Sites and Monuments Register, Truro, Cornwall.