IIBarn to the W of Cwmannog Located immediately W of the farmhouse and sited with its NW gable into the slope of the hill.
IIBron Edda Located at the SE edge of the town on a hillside, backing onto the Coed y Wern; at the end of a short lane leading S from the Pont-y-Pandy.
IICwmannog Farmhouse AKA Gymmannog Located 1.5 km W of Trefriw immediately to the N of the Trefriw-Llyn Geirionydd road, where it bridges the Afon Crafnant; set against the slope of a hill facing a random-cobbled enclosure.
IIFfynnon Gowper Located on the W side of the B 5106 (Gwydir Road), approximately 750m SE of Gwydir Castle.
IIGwydir Cottage Set back and raised up slightly on the W side of the B 5106 (Gwydir Road), some 200m SE of Gwydir Castle.
IIGwydir Uchaf Strikingly located on an elevated plateau immediately above Gwydir Castle and NW of the Carreg-y-Gwalch; adjacent to Gwydir Uchaf Chapel.
IGwydir Uchaf Chapel Strikingly located on an elevated plateau immediately above Gwydir Castle and NW of the Carreg-y-Gwalch; adjacent to Gwydir Uchaf.
ILlanrhychwyn Church Situated on an upland plateau approximately 1.2km S of Trefriw and 0.3km E of Lake Geirionydd; set back slightly to the SE of the road between the two.
IILlys Llewelyn Prominently sited in the town centre just S of the church of St. Mary; set back slightly from the road behind a low garden wall with simple spear-headed gates and railings.
IIMilestone Located on the roadside, approximately 500m S of Trefriw between Pant-y-Carw cottage and Ysgubor Gerrig; in front of a low rubble wall.
IIMilestone Located on the W side of the B 5106 (Gwydir Road), some 2km N of Trefriw; set in front of a rubble retaining wall.
IINant Cottage On an elevated, wooded site immediately above the `Grey Mare's Tail' waterfall and to the E of the unclassified road running NW-wards from Gwydir Castle to Tai Isaf.
IIOld Bath House at Trefriw Wells Located off the B 5106 (Gwydir Road) on the W side, some 2km N of Trefriw; set into the hillside behind the pumphouse and spa centre.
II*Parish Church of St. Mary Prominently sited in the town centre within a raised, rubble-walled churchyard; on sloping ground, the W end set into a hill.
IIPeniel Welsh Presbyterian Chapel Strikingly located in the centre of the town, set against the hillside above and to the SW of the parish church; raised up on a revetted and railed terrace with simple gates and gatepiers.
IIPlas Coch On the street line in the town centre, just S of Llys Llewelyn and opposite the Trefriw Hall; set back slightly behind a low wall with simple C19 gates and iron railings.
IIPont -y- Pandy Spanning the Afon Crafnant immediately above the Fairy Falls at the western extremity of the town.
IIPont Hafod Arthen Spanning the Afon Crafnant 0.5km NE of lake Crafnant on the lake road to Trefriw. Also called Pont Nant-Uchaf.
IIPont Trefriw Road bridge in the town centre, spanning the Afon Crafnant.
II*Raised walk at Gwydir Castle Listed as a mid-Tudor carved courtyard or garden arch, with associated walls. Additional NG Ref's 27970 36097 to 27988 to 36107
Group value with other listed items at Gwydir Castle.
IITaliesin Monument Located on a natural mount at the N end of Lake Geirionydd.
IITan-y-Celyn Located at right-angles with the road at the southern approach of the town.
IITan-yr-Yw On the street line, opposite the church of St. Mary.
IIThe Old Rectory Located towards the SE edge of the town; occupying a commanding hillside position S of the Afon Crafnant, close to the old Trefriw woollen mills.
IITrefriw Hall Set back from the main street in the town centre, partly obscured by later housing on the street-line in front.
IITu-Hwnt-y'r-Bont Located at right-angles with the B 5106 immediately at the SW approach of the Pont Fawr spanning the River Conwy at Llanrwst.
IITyn-y-Coed Set back and raised up on a revetted bank on the W side of the B 5106 (Gwydir Road), some 220m SE of Gwydir Castle.
IITyn-y-Coed Set back and raised up on a revetted bank on the W side of the B 5106 (Gwydir Road), some 220m SE of Gwydir Castle.