Upper Barn at Cefndeuddwr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 13 February 1995. House.
Upper Barn at Cefndeuddwr
- WRENN ID
- sunken-vault-weasel
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 13 February 1995
- Type
- House
- Address
- Upper Barn at Cefndeuddwr, Ganllwyd, Gwynedd
- OS grid reference
- SH 729 260
- Coordinates
- 52.81734, -3.88609
- Source
- Cadw listing
Description
Upper Barn at Cefndeuddwr is a mid to late 17th century rubble barn, partly built onto rock and topped with a corrugated iron roof. It features wide opposing entrances on the long north and south sides. The entrance on the south side has a timber lintel and a part-contemporary stopped-chamfered pegged oak doorcase, complete with tongue-stops to the lintel beam, and modern stable doors. There are two tiers of blocked ventilation slits. The upper loading bays are located at the gable ends, with the eastern bay having 19th century external stone-stepped access.
The barn has four bays and a slate-flagged floor. It retains largely original pegged collar trusses with tie beams, although the tie beam from the first truss on the left is cut off at the wall.
Local climate
Upper Barn at Cefndeuddwr sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 39 freeze-thaw cycles a year, more than 74% of listed buildings. Of these, 21 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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