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Tyddyn-Difyr and associated field walls

A Grade II Listed Building in Llanwnda, Gwynedd

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Latitude: 53.0877 / 53°5'15"N

Longitude: -4.2208 / 4°13'14"W

OS Eastings: 251365

OS Northings: 356807

OS Grid: SH513568

Mapcode National: GBR 5L.9F62

Mapcode Global: WH54S.4NC7

Entry Name: Tyddyn-Difyr and associated field walls

Listing Date: 28 May 1999

Last Amended: 28 May 1999

Grade: II

Source: Cadw

Source ID: 21819

Building Class: Domestic

Location: Situated in isolated location above and to the north-east of Rhosgadfan on moorland edge within its own drystone-walled small field system, reached by a rough track from the road.

County: Gwynedd

Town: Caernarfon

Community: Llanwnda

Community: Llanwnda

Locality: Rhosgadfan

Traditional County: Caernarfonshire

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Shown on the 1839 Tithe Map with its existing small field system already intact, the smallholding is likely to have been established in the C19, its occupants probably supplementing their agricultural income by working in one of the local slate quarries. The attached cowhouse now forms part of the domestic accommodation.


Cottage and attached cowhouse. Single-storey 2-room cottage, aligned roughly north-east to south-west with cowhouse attached to left gable end. Painted rubblestone, rendered to right gable end; slate roof with integral end stacks to cottage, left at junction with former cowhouse. Cottage has C20 windows in original openings to either side of central entrance under large C20 gabled porch. The former cowhouse has a boarded door to the front with a small rooflight directly above.


Interior not available for inspection at time of Survey.

Reasons for Listing

Included, notwithstanding a degree of alteration, as a remarkably well-preserved example of a typical early C19 encroachment surrounded by moorland, characteristic of the area. Built in the local vernacular tradition, the cottage, with its associated well-preserved small field system, forms a highly distinctive and prominent component of the settlement/encroachment landscape associated with the early exploitation of slate quarries in this area.

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Other nearby listed buildings

  • II Tyddyn Engan
    Situated in edge-of-moorland location directly adjacent to track leading to Tan Foel Bach; small rubblestone-walled enclosure and slate path to front.
  • II Glan Gors
    Located approximately 0.5km north-east of Rhosgadfan close to and below the no-through road from Tyn Lwyn to Hafod Owen; rubblestone wall to road with slate path leading to cottage.
  • II Tyn Twll
    Situated within its own irregular rubble-walled enclosure on moorland off the track running south-eastwards from Rhosgadfan towards the former Moel Tryfan Quarry.
  • II Tegfan and adjoining cottage to right
    Situated on south-east side of road in Rhosgadfan; rubblestone wall in front to pavement, original stone-on-edge coping mostly replaced with concrete finials and horizontal steel railing; iron gate to
  • II Pen-y-braich
    Situated in an edge-of-moorland location within its own stone-walled small field system at the end of a track running south from Rhosgadfan.
  • II Cae'r Gors
    Located on the left side of the road from Rhostryfan to the crossroads in Rhosgadfan, the cottage has a low rubblestone wall to the front and a high rubblestone wall with iron gate to the road.
  • II Gorphwysfa
    Situated on the east side of the road between Rhosgadfan and Y Fron, the cottage is set in the rear right corner of a roughly rectangular enclosure with rubblestone walls, lower and topped with spear-
  • II Tyn Llwyn
    Situated approximately 0.5km north of Rhosgadfan on its own in pasture fields at the head of the no-through road to Bod Owen; low rubblestone wall in front.

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