Constructed of limestone rubble with grit dressings and slate roofs. The N and S walls of the nave are C12, those of the chancel later but medieval. The N chapel and W tower were added in the C19 and the whole church restored early C20. The roof of the nave is medieval, and of the arch-braced type.
(Source: Anglesey Inventory, 1937 [1960 reprint], p. 91)
J Hill 02.02.2004