IINo.1 Argoed Cottages Set back from the road opposite Argoed Mill Gallery. No 1 is the SE end of the row.
IINo.2 Argoed Cottages Set back from the road opposite Argoed Mill Gallery. No 2 is the middle cottage of the row.
IINo.3 Argoed Cottages Set back from the road opposite Argoed Mill Gallery. No 3 is the NW end of the row.
IIOld house at Bwlch Mawr Reached by farm road on the W side of a minor road N of the A44, approximately 1.2km NE of Nantmel. The old house stands within a steel shed on the W side of the modern house.
IITy Seren On the N side of the road through the village, approximately 250m SW of the parish church.
IIUpper Bwlch, including attached farm ranges Approximately 0.75km NNE of Gaufron hamlet, reached from the N side by a farm road S of a minor road between Rhayader and Abbey Cwmhir.
IIWater conduit at Maes-y-gelli Farm Set across a small dingle to N of Maesygelli Farmhouse and close to farmbuildings which lie beyond the conduit.
IIWye Siphon Outlet House In a field N of Gigrin Farmhouse, approximately 0.9km ESE of Rhayader town centre.
IIWyeside Approximately 300m E of Llanwrthwl, opposite the road to Cornel Farm.