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Cof Cymru: National Historic Assets of Wales · Wales

Corn barn at Trefarthen (S side of yard)

Llanidan, Isle of Anglesey, Wales

A Grade II listed building in Trefarthen, Llanidan, Isle of Anglesey, designated on 20 May 1998.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Corn barn at Trefarthen (S side of yard), Llanidan, Isle of Anglesey, 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
20 May 1998
Locality
Trefarthen
Community
Llanidan
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates
53.17032, -4.27140
Cadw reference
19873

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 1883 map "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 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)
  • 1919 · Sheet 41. Anglesey. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Located on the S side of the farmyard of Trefarthen.

Built probably early C18. The building appears to be shown on a Vaynol estate map dated 1777.

A five bay corn barn with wide opposed doors to centre. Rubble walls with two tiers of slit vents in the lateral walls, 7 either side of the doors. Three levels of slits vents to gable walls, partly blocked. Pitched slate roof with slate slab copings, tapered finial with weather-vane to E end. Central tall doors with stone voussoir basket arch, pitching door over door on N side, and blocked door to E gable.

Roof has four queen-post trusses. Beam to support loft formerly running on either side of door, but one only remains ('1833' painted on). Vents have small timber struts across, formerly holding wire bars. Area of threshing floor beteween doors has stone slabs.

Listed as a good and unaltered example of an early C18 corn barn,which forms part of an exceptionally complete farmstead group at Trefarthen.

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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