IICeiswyn The farm is the last dwelling in Cwm Ratgoed. It is sited uphill on a bank raised above the Afon Ceiswyn, and NW of Dugoed.
IICorris Institute The Institute is built at the lowest point of the main street, on the W side of the road and near the S bank of the Afon Deri, at the centre of the village,
IICrud-y-gwyn The row of 10 cotttages lies at the foot of the hill, set back on a bank from the main road, at the N end of the village.
IICymerau Cottages The row of 4 cottages is set back from the track at the S end of the road running up Cwm Ratcoed, and backs on to Cymerau Quarry.
IICymerau Cottages The row of four cottages is set back from the track at the S end of the road running up Cwm Ratgoed, and backs on to Cymerau Quarry.
IICymerau Cottages The row of four cottages is set back from the track at the S end of the road running up Cwm Ratgoed, and backs on to Cymerau Quarry.
IICymerau Cottages The row of four cottages is set back fromt he track, near the S end of the road running up Cwm Ratgoed, and backs on to Cymerau Quarry.
IIDol-y-dderwin The house stands back from the main road to Machynlleth, 1.609 km N of Pont ar Ddyfi.
IIDolgoed The house stands at the head of Cwm Ratgoed, near the left bank of Afon Ceiswyn.
IIDylluan-y-Deri The row of 10 cottages lies at the foot of the hill, set back on a bank above the main road, at the N end of the village.
IIFarm building at Llwydiarth Llwydiarth farmstead lies in an enclave in forestry, NE of Aberllefenni. The farm building is immediately S and parallel to the farmhouse.
IIGwyn Hafod The row of 10 cottages lies at the foot of the hill and on a bank set back from the main road at the N end of the village.
IIGwynfa Bach The row of 10 cottages lies at the foot of the hill and on a bank set back from the main road at the N end of the village.
IIHen-gau The farmhouse is located on the W side of the valley under Fron-fawr, facing E with farm buildings set apart to the N and S. It is reached by a farm track leading off the main valley road running NW
IIIdris House The building stands in a conspicuous position in the main street of the village, adjoining Capel Salem on the right.
IILliwdy The house stands beside the driveway to the Esgair Estate, approximately 50m from the main road.
IILlwydiarth The farm stands on an eminence overlooking the Nant Llwydiarth to the E, now largely within forestry, and is reached by a winding farm road leading off the minor road from Aberllefenni to Aberangell.
IIMilestone The milestone stands in the road verge, near Melin Pantperthog.
IIMilestone The milestone stands in the W verge of the main road near Esgairgeiliog.
IINeuadd Bentref The building stands back behind the former playground, in the centre of the hamlet of Pantperthog.
IIPant-y-celyn Nos 1 and 2 Pant-y-celyn are two cottages in a row off Minffordd Street, behind the properties fronting Bridge Street in the centre of the village.
IIPant-y-celyn The building forms a short row with No 1, at right angles to Minffordd Street, at the centre of Corris, and facing E across a small garden to a roadway running down to the river.
IIPen-y-bont Cottages On the N bridgehead of the Pont-ar-Ddyfi facing S across the river towards Machynlleth.
IIPen-y-bont Cottages On the N bridgehead of the Pont-ar-Ddyfi facing S across the river towards Machynlleth.
IIPen-y-bont Cottages On the N bridgehead of the Pont-ar-Ddyfi facing S across the river towards Machynlleth.
IIPen-y-bont Cottages On the N bridgehead of the Pont-ar-Ddyfi facing S across the river towards Machynlleth.
IIPen-y-bont Cottages On the N bridgehead of the Pont-ar-Ddyfi facing S across the river towards Machynlleth.
II*Plas Aberllefenni The house stands at the N end of Aberllefenni, in a loop of the road running to the E to Aberangell.
IIPlas Ty'n-y-berth The house lies in its own grounds, approached by a curving driveway off the main A487 to Dolgellau.
IIPreswylfa The row of 10 cottages lies at the foot of the hill, set back from the main road on a bank, at the N end of the village,
IIRailway Overbridge The overbridge carried the former Corris Railway over the Nant Deri, in the centre of Corris village.
IIRatgoed Hall The house stands in its own well-planted grounds in the middle Ratgoed valley, and on a platform above the river, and was formerly the centre of a small slate-quarrying community. The stables lie to
IITan-y-bryn The house is built across the slope, end on to the street, facing NW towards Nos 1 and 2 Pant-y-celyn.
IIThe Bell House The building stands isolated but close to the road at the N end of the village.
IIThe Slater's Arms The inn is on the corner of Bridge Street and the road running up from the bridge over the Afon Dulas crossing Bridge Street and continuing to the NW.
IITurnpike Cottage The building stands in the junction of the A487 Machynlleth to Barmouth Road with the B4404 running E to Llanwrin, E of Pont ar Ddyfi.
IIWater Balanced Incline and Drumhouse Aberllefenni quarry lies on the NW branch road leading off the Aberllefenni to Aberangell road. The incline lies back c150m SW of the road.
IIYr Efail The house is built gable on to the road rising up from the crossing of the Afon Dulas to the centre of Corris.