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Cof Cymru: National Historic Assets of Wales · Wales

Barn at Llwyn Onn Bach

Barmouth, Gwynedd, Wales

A Grade II listed building in LLwyn Onn, Barmouth, Gwynedd, designated on 31 January 1995.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Barn at Llwyn Onn Bach, Barmouth, 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
Agriculture and Subsistence
Date of designation
31 January 1995
Locality
LLwyn Onn
Community
Barmouth
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.74045, -4.03385
Cadw reference
15506

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)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 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)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Situated on a hillside sloping down towards the mouth of the Afon Dwynant. Approximately 3km NE of Barmouth, approached from a mountain road which continues from Panorama road; Llwyn Onn Bach is situated immediately to the E, and below the road. The barn

A rubble barn with part boulder foundations, rubble gable parapets and slate roof; partly built onto rock. Probably contemporary with the cottage, late C17. Central raised entrance to farmyard side; ventilation slits to both gable apexes. Further plain entrance to S gable with a loading bay to the N; modern boarded doors. 3-bay interior with crude collar trusses.

Included for group value with Llwyn Onn Bach farmhouse.

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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