IILock House On the S side of the Neath Canal facing the lock. The house backs on to and stands at the foot of Lock Hill on the N side of Henfaes Road.
IIMosshouse Wood Cascade On the NE side of the Gnoll Estate E of Mosshouse Wood reservoir.
IINazareth Chapel On the S side of the main B4434 through the village on the E side of the junction with School Road, and set back from the main road behind a railed forecourt.
IIPenlan-fach bridge On an unclassified road to Wenallt Farm approximately 1km ESE of Tonna church spanning a stream and the former Glyncorrwg Mineral Railway.
IIPont Gam On the E side of the Aberdulais Basin at the junction of the Neath and Tennant Canals.
IIStable at Neath Canal Depot On the E side and in the garden of Lock House on the S side of the Neath Canal.
IITyn yr Heol Set back from the main B4434 through the village 0.7km SW of Tonna church. In its own grounds with rubble boundary wall and stone gate-piers to the drive.