The church is constructed of local shale rubble with granite quoins and copings, and Caen stone dressings. The roofs are of scantle slate with coped gable ends. The west front retains a Norman round-headed doorway incorporating original 12th-century bases, roll mouldings, nook shafts, and a carved tympanum. Above it is a 15th-century three-light Perpendicular window, and the gable is topped by a large embattled bell turret with two-light openings.[2]
On the north wall is a well-preserved Norman doorway with chevron ornament and carved tympanum. The north transept, largely rebuilt in the 15th century, has a three-light Perpendicular window. The chancel and aisle windows are largely 15th-century Perpendicular, though some were replaced or restored in the 19th century.[2] The south porch doorway, dating from the late 15th or early 16th century, is a notable example of late Perpendicular work, with panelled jambs and moulded arch.[2][3]
The interior follows the typical Cornish plan of a nave with a single aisle to the south. A six-bay Perpendicular Caen stone arcade separates the nave from the south aisle and chapel and continues into the chancel, with granite responds and moulded arches. Two rood doorways survive in the north wall and in the adjacent pier between the nave and chancel. At the east end of the arcade is a squint with a piscina, and an aumbry in set in the east wall of the aisle chapel. Norman fragments are incorporated into niches in the north transept.[2][3]
The present arch-braced pitch pine roofs date from circa 1870 and replaced earlier oak wagon roofs. Several windows contain 19th-century coloured glass.[2]
The church retains a medieval font with an octagonal granite bowl, possibly of the 15th century, set on a 13th-century turned base. The base of the rood screen, dating from the late 15th or early 16th century, survives in reassembled form and includes a screen dado of coloured panels with floral decoration; it is carved in an early Renaissance style and retains traces of original paint.[3] Two 16th-century oak bench ends are incorporated into the fronts of the choir stalls.[2]
The oak pulpit dates from the 16th century and has carved rails, stiles, muntins, panels, and a moulded cornice.[3] Other fittings include a priest's chair assembled from reused medieval fragments, painted Royal Arms of Queen Anne in the south transept, a painted letter of Charles I formerly at Sudeley Castle near the south door, and old oak parish stocks in the porch. The pews are 19th-century pitch pine.[2] A later addition is a screen between the sanctuary and the Lady Chapel commemorating the thirty-one people who died in the MV Darlwyne disaster of 1966.[1]
The south chapel contains a monument commemorating Francis Trefusis (d. 1680) and includes a Latin inscription.[3] Further wall monuments in the south transept include a 1695 monument to Richard Bonython of Carclew and his wife Honor.[2]
