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Cof Cymru: National Historic Assets of Wales · Wales

Tyn Twll

Llanwnda, Gwynedd, Wales

A Grade II listed building in Moel Tryfan, Caernarfon, Llanwnda, Gwynedd, designated on 28 May 1999.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Tyn Twll, Llanwnda, Gwynedd, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Domestic
Date of designation
28 May 1999
Locality
Moel Tryfan
Town
Caernarfon
Community
Llanwnda
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.08474, -4.23044
Cadw reference
21809

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 105 Carnarvon (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

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

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.

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.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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