Dry Delabole slate roofs with coped gable ends, shaped clay ridge tiles and cross finials over cruciform gablets.
North wall of nave incoporates circa C16 flat-headed window with trefoils, to right (west).
North aisle has reused C15 Perpendicular window to far left, otherwise C19 windows in Perpendicular style.
South aisle and porch are rebuilt almost to the same design as the pre 1875 building incorporating C15 Perpendicular 3-light windows, 1 to left of porch, 3 to right of porch and 1 to east end.
West windows, 3-light to south aisle and 4-light to nave are C19 copies in granite of original C15 Perpendicular windows.
Porch has C15 4-centred arched moulded granite doorframe.
Interior has C15 standard A (Pevsner) granite arcade of 5-bays between nave and south aisle with 4-centred arches with cavetto and ovolo intrados mouldings over coved capitals.
Several memorial windows of coloured glass.
painted coat of arms of Charles I 1638
Monument of marble with vase and torches to William Penrose of Tregie d. 1838.