 The chapel originally had an apsoidal chancel and a square window in its north wall, at a later date the apse had been pulled down and the chancel slightly lengthened, and a square wall erected with an early English window.The English window contained a variety of stones with most of them being Sutton stone, the window also contained three Bridgend sandstone and several Bath oolite stones.The walls of the chapel were 2 feet 2 inches thick.