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Corn barn at Trefarthen (S side of yard)

A Grade II Listed Building in Llanidan, Isle of Anglesey

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Latitude: 53.1703 / 53°10'13"N

Longitude: -4.2714 / 4°16'16"W

OS Eastings: 248270

OS Northings: 366100

OS Grid: SH482661

Mapcode National: GBR 5J.46VT

Mapcode Global: WH437.CK7X

Entry Name: Corn barn at Trefarthen (S side of yard)

Listing Date: 20 May 1998

Last Amended: 20 May 1998

Grade: II

Source: Cadw

Source ID: 19873

Building Class: Agriculture and Subsistence

Location: Located on the S side of the farmyard of Trefarthen.

County: Isle of Anglesey

Community: Llanidan

Community: Llanidan

Locality: Trefarthen

Traditional County: Anglesey

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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.

Reasons for Listing

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

Other nearby listed buildings

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