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Cof Cymru: National Historic Assets of Wales · Wales

Barn at Gwanas Fawr

Brithdir and Llanfachreth, Gwynedd, Wales

A Grade II listed building in Gwanas, Brithdir and Llanfachreth, Gwynedd, designated on 17 June 1966.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Barn at Gwanas Fawr, Brithdir and Llanfachreth, 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
17 June 1966
Locality
Gwanas
Community
Brithdir and Llanfachreth
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.73323, -3.82159
Cadw reference
4716

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)
  • 1899 · 149 Barmouth (Hills) (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

Immediately to the E of Gwanas Fawr, facing the house.

Long post Medieval rubble barn of cyclopean boulder construction; perhaps second half C16. Inappropriate modern slate roof with skylights to both pitches. Off-centre entrance (to L) with opposing entrance to rear; stable and boarded doors respectively. Ventilation slits to bays 1-3, splayed inwardly. Square window to rear (bay 4) with plain glazing. Gable entrance to N with further ventilation slit above. Later 2-bay extension to L, set-back slightly. C19 roof; rear pitch with old slates. Entrance off-centre to R with modern door.

6 bays with original trusses; these are pegged upper crucks with tie beams and curved, all roughly chamfered. 2 tiers of trenched purlins, mostly original; modern rafters and ridge-piece. The 2 northern-most bays are stepped-down and a rubble wall has been inserted between bays 3 and 4 to tie beam level; this is cut in the centre.

Included notwithstanding its modern roof covering as an otherwise complete and unusually long post-Medieval barn.

Group value with Gwanas Fawr.

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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