Maclean's extensive description of the church prior to restoration records a cruciform plan with Norman nave, chancel and south transept and Early English north transept.
In circa C15 the west tower was probably erected.
Gabled early C16 south porch roofed with two large granite slabs which include the coping
C19 furnishings replace the elaborate carved bench ends and rood-screen described by Maclean prior to restoration.
C17 altar table is north aisle.
The stripfields on Forrabury Common directly to the north of the church are probably post medieval covering 80 acres.
Sedding, E. H. Norman Architecture in Cornwall, a handbook of Old Cornish Ecclesiastical Architecture, 1909.
Church Guide Sites and Monuments Register, Truro, Cornwall.