IITy'n Twll Situated on the west side of a track running north-eastwards off the west end of the road from Croesywaun to Groeslon.
IITyntyla Farmhouse Sited high above mountain road from Ystrad to Rhondda Fach. Platform site set into hillside with agricultural range attached to downhill gable of farmhouse.
IITy'n-y-bryn The house stands on the road from Llanfihangel to Bryncrug, facing N, approximately 200m N of Pont Ystumanner.
IITy'n y Bryn Farmhouse On the E side of a minor road between Tregynon and Newtown, approximately 1km S of parish church, and reached by a short farm road.
IITyn-y-Cablyd At end of minor road which leads from Llangynog to Pennant Melangell. About 800m north-west of the church of St Melangell, across stream south-west of the modern farmhouse.
IITy'n-y-Coed Farmhouse Above the road leading from Berriew to Bettws Cedewain 2.5km approx. SW of Berriew.
IITyn-y-Coed Farmhouse Located at the end of a short unmetalled drive with farm buildings to L, to the S of the A 496, and about 200m SE of Caerdeon church.
IITyn-y-coed Isaf Situated some 1.1 km NW of the B4415 road, off lane to Madryn, NW of Bodgadle.
IITy'n-y-Corn Situated on steep wooded N slope of the Twrch Valley, reached by track off Ffarmers-Llandewi Brefi by-road.
IITy'n y Cornel The farmstead is located to the NE of the Peniarth-uchaf estate, reached by a roadway off the N side of the road from Llanegryn to Abergynolwyn, immediately before Pont-y-garth.
IITy'n-y-Ddol Set back from the road to the S of Llandderfel; accessed via a farm track running W from the road.
IITy'n-y-Ffrith Located on a commanding and elevated site approximately 1.2km NW of and above Llanfair Talhairn; accessed via a long and winding unmetalled track leading W from the main road.
IITy'n-y-ffynnon High on the S slope of the Sirhowy Valley above Wattsville, reached by the mountain road running below the crest of Mynydd Grug and then down a farm track.
IITyn-y-Graig Situated high up a side valley of the Dee in the Berwyn range, and at the top of a lane which leaves the A5 1km approx. E of the village.
IITyn-y-Llwyn Situated approximately 2.5km N of Llanelltyd village on a high sloping site to the W of the Cwm-yr-Wnin; accessed via a long, rough track leading from the termination point off a metalled road running
IITyn-y-maen Located 1.5 km ENE of the church of St Machraeth, on the S side of a minor road, near Tyn-y-maen Chapel.
IITy'n-y-mynydd The building is located at the foot of the southern peak of Carreglefain, on the col between Carreglefain and Moel Ty-gwyn. It is reached by a farm road from Bwlch Gwynt.
IITy'n-yr-hendre Located off east side of minor road climbing south-eastwards off the A 55 towards Bronydd Isaf; the former farmhouse is situated on rising ground approximately 70m from the nearest part of the farmbui
IITyn-y-rhos Farmhouse To east side of a minor road about 1 km south of the village of Llanfechain.
IITy'n y Twll The house stands in a slightly elevated position near the head of the Cwm Cywarch, facing over to the W.
IITy'n-y-waun farmhouse The farm lies immediately to the S of the housing estate on the W side of the A4063 Bridgend Road at Pont-rhyd-y-cyff. The access drive lies close to and parallel to Heol Ty'n'y'waun. The house stands
IITyn y Waun Farmhouse To N of minor road to Rhydoldog, approx 1km from its junction with Elan Valley Road.
IITy Obry Farmhouse Located approximately 1.5km NW of Penrhyndeudraeth on a commanding hillside site opposite the Hir Ynys; immediately S of a lane running NW from the A 487 at Penrhyndeudraeth.
IITy Pellaf and Rhedynog Goch The southernmost of the farms on the island, on the E side of the track some 500m NE of the slipway.
IITy-Perrot Reached from by road approx one kilometre SE from Coed-y-Paen on way to Llangybi. Ty Perrot is sited uphill on E side of minor road to The Forest.
IITy'r Allt Located on the SE side of the B4545, c100m from the SW end of Pont Rhydbont, in the village of Four Mile Bridge.
IITy'rberllan Situated on E of lane running N off road on E side of the Nant Bran, about 400m N of church.
IITy'r Felin Reached by private trackway and set back from the N side of a country road leading W from the village of Llanddeusant. The house is located c50m NNW of Llynon mill and c500m W of the Church of St Mar
IITy'r Pentre On the S side of the road through Battle village some 150m E of the Church of Saint Cynog.
IITy Wian with attached servants quarters In an isolated rural location set well back from the E side of a country road leading NW from the village of Llanfairynghornwy; c70m NNW of the Church of St Mary.