History in Structure

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Tyn Twll

A Grade II Listed Building in Llanwnda, Gwynedd

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Latitude: 53.0847 / 53°5'5"N

Longitude: -4.2304 / 4°13'49"W

OS Eastings: 250711

OS Northings: 356495

OS Grid: SH507564

Mapcode National: GBR 5K.9QTS

Mapcode Global: WH43M.ZQPJ

Entry Name: Tyn Twll

Listing Date: 28 May 1999

Last Amended: 28 May 1999

Grade: II

Source: Cadw

Source ID: 21809

Building Class: Domestic

Location: Situated within its own irregular rubble-walled enclosure on moorland off the track running south-eastwards from Rhosgadfan towards the former Moel Tryfan Quarry.

County: Gwynedd

Town: Caernarfon

Community: Llanwnda

Community: Llanwnda

Locality: Moel Tryfan

Traditional County: Caernarfonshire

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Shown on the 1839 Tithe Map, with its existing enclosure from the moorland already established, the cottage is likely to have been built in the early C19, its occupants living from agriculture and probably also from work in the nearby Moel Tryfan Quarry, operational by 1800. The section of the cottage to the left of the ridge stack may be an addition to a 2-room plan and could have served as a cowhouse, but there is no clear evidence for this and the cottage may always have been of 3-room plan.


Cottage. Single-storey, probable 3-room plan, aligned roughly east-west with a virtually full-length lean-to to the rear. Limewashed rubblestone; slate roof with integral end stack to right and more substantial ridge stack to left of centre. Front has 6-paned sash windows to either side of slightly offset plank door to right of ridge stack with 2 further 6-paned sashes to left, all windows with slate cills.


Interior not accessible at time of Survey.

Reasons for Listing

Listed as a good example of a well-restored and exceptionally well-preserved early C19 smallholder's cottage, built in the local vernacular tradition and forming a distinctive component in a particularly important landscape of settlement/encroachment on Cilgwyn Common, associated with the early exploitation of slate quarries in this area.

Other nearby listed buildings

  • II Pen-y-braich
    Situated in an edge-of-moorland location within its own stone-walled small field system at the end o
  • II Gorphwysfa
    Situated on the east side of the road between Rhosgadfan and Y Fron, the cottage is set in the rear
  • II Tyddyn Engan
    Situated in edge-of-moorland location directly adjacent to track leading to Tan Foel Bach; small rub
  • II Tegfan and adjoining cottage to right
    Situated on south-east side of road in Rhosgadfan; rubblestone wall in front to pavement, original s
  • II Tyddyn-Difyr and associated field walls
    Situated in isolated location above and to the north-east of Rhosgadfan on moorland edge within its
  • II Cae'r Gors
    Located on the left side of the road from Rhostryfan to the crossroads in Rhosgadfan, the cottage ha
  • II Rhosgadfan House
    Located at the end of a short driveway by sharp bend on the road between Rhosgadfan and Rhostryfan;
  • II Glan Gors
    Located approximately 0.5km north-east of Rhosgadfan close to and below the no-through road from Tyn

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