IIBoundary wall, gateways & turrets at Bryn Bras Castle On the north-east side of the Llanrug-Llanberis 'Mountain' road, the boundary wall runs alongside the castle gardens and continues north-westwards underneath and past the arch-way linking the 2 parts
II*Bryn Bras Castle The castle occupies a triangular site at the junction of the road between Cwm-y-glo and Llanrug and the mountain route from Llanrug to Llanberis; the drive and parking area on the north represent the
IICae'r-maen Between Llanrug and Ceunant; on north-west side of track off lane which leads to Pant Afon.
IICapel Tan-y-coed Located on the east side of the road between Llanrug and Ceunant immediately to the north-east of the former Post Office; low rubblestone wall with stone-on-edge coping to roadside; square piers, spea
II*Church of St Michael Situated on its own in originally rectangular churchyard, now extended to north-east and south-east, on track between Bryn-llan and Plas Tirion approximately 0.75km south-west of Llanrug.
IIDirection indicator Located on the south side of the A4086 at Pont-rug at its junction with the road to Caeathro; the direction indicator is set in a rubblestone boundary wall.
IIFormer Post Office & Nos 1-3 Maes Gerddi Located on the east side of the road between Llanrug and Ceunant immediately to the south-west of the chapel and Sunday School at Tan-y-coed; the cottages behind a low stone wall with railings, the po
IIGlan Seiont Located on the edge of pasture fields at the end of a track off the A 4086 approximately 1.2 km north-west of Llanrug; the building is situated about 300m south-west of the point where the former Caer
IIHafod-rhug-isaf Located at the end of a farm track off the minor road running south-westwards from Llanrug to join the A 4085 between Caeathro and Waunfawr; the house has roofless outbuildings attached to both ends.
IILlwyn Coed Situated at the end of a farm track off the A 4086 in level fields with wooded rising ground behind.
IILych-gate at Church of St Michael Lych-gate located immediately to the north-west of the Church of St Michael in the north-west corner of the churchyard.
IIPant Afon Located off the east side of the minor road running south-westwards from Llanrug to join the A 4085 between Caeathro and Waunfawr; Llyn Pant Afon lies approximately 50m to the south-east of the house.
IIPant-y-Celyn Located on the east side of the main village street at Cwm-y-glo towards its northern end; low rubblestone wall in front with stone-on-edge coping and decorated iron gate aligned on front door.
IIPen Rallt Located at the end of a track running downslope from the minor road between Cwm-y-glo and Bryn Bras Castle.
IIPlas Bach Located on the road between Caeathro and Pont-rug at the former north-eastern entrance to Glan Gwna Hall; iron gates with fluted iron gate posts stand at the entrance to the former driveway.
IIPlas Gwyn Located in pasture fields at the end of a track on the south side of the A 4086 approximately 1km west of Llanrug.
IIPlas Tirion Located towards the end of a track running south-westwards past the Church of St Michael towards Plastirion Farm; a pool and various ruined outbuildings stand immediately north of the house.
IIPont-Rhythallt Located on the minor road between Llanrug and Penisa'r Waun, where it crosses the Afon Rhythallt.
IIPont-rug Located on the A 4086 between Caernarfon and Llanrug at the point where it crosses the Afon Seiont.
IIPrysgol Located at the end of a long farm track reached off the minor road running south-westwards from Llanrug to join the A 4085 between Caeathro and Waunfawr; the farmhouse is situated to the south of the
IISeiont Manor (also known as Llwyn y Brain) Located off the driveway leading to Seiont Manor Country House Hotel on the north side of the A 4086 approximately 0.7km north-west of Llanrug; the house occupies a raised site with lawned grounds to
IIStables at Plas Tirion Situated on the north-east side of the yard on the other side of the track to the east of the house at Plas Tirion.
IIStables/coach house at Plas Tirion Situated on the south-west side of the yard on the other side of the track to the east of the house at Plas Tirion.
IISunday School/Vestry at Capel Tan-y-coed Located directly to the south-west of the chapel with gable end to road, in the same low rubble-walled enclosure, returning at right-angles to follow track running off road; rough square piers with de
IIWalled 'knot' garden at Bryn Bras Castle Located immediately adjoining the summer house on slightly rising ground with the 'Woodland Garden' behind to the east of Bryn Bras Castle.