Field Barn at Bryn Mawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 19 June 1990. Barn.
Field Barn at Bryn Mawr
- WRENN ID
- drifting-brass-moth
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 June 1990
- Type
- Barn
- Address
- Field Barn at Bryn Mawr, Dolgellau, Gwynedd
- OS grid reference
- SH 729 165
- Coordinates
- 52.73135, -3.88275
- Source
- Cadw listing
Description
The Field Barn at Bryn Mawr is a 19th-century structure built from drystone rubble masonry. It features a steeply pitched quarry slate roof with plain eaves and raking gable parapets. The barn has central opposed doorways with stone lintels and split plank doors, along with an additional door to the extreme left on the front, which also has a stone lintel and a plank door. There is a pitching door located at the uphill gable end. Inside, the barn is supported by two through purlin collar and tie beam trusses. A 20th-century rubble lean-to has been added to the downhill gable end, topped with a corrugated iron roof.
Local climate
Field Barn at Bryn Mawr sits in one of the wettest parts of the UK, with an average of 1,340 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 93% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, more than 52% of listed buildings. Of these, 17 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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