Barn/Cowhouse at Plas Glan-yr-Afon is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 29 May 1968. Barn/cowhouse.
Barn/Cowhouse at Plas Glan-yr-Afon
- WRENN ID
- night-bastion-spindle
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 29 May 1968
- Type
- Barn/cowhouse
- Address
- Barn/Cowhouse at Plas Glan-yr-Afon, Waunfawr
- OS grid reference
- SH 503 597
- Coordinates
- 53.11423, -4.23674
- Source
- Cadw listing
Description
The building is a 3-bay barn and cowhouse at Plas Glan-yr-Afon, dating from the 19th century. The barn is aligned roughly north-south and features a lean-to attached to the west long wall, with a lower cowhouse that is flush with the north gable end and projects to the east. The structure is built of roughly coursed rubblestone, with tighter joints in the barn, and has slate roofs.
The north gable end of the barn includes a central doorway flanked by tall rectangular window openings, as well as a central pitching door for access to the upper level. The cowhouse has two stable doors at the front and a small window located in the corner next to the barn.
Inside, the barn features two large pegged A-frame trusses, with ties that appear to have been cut off near the ends. There is a doorway in the back wall and another in the left wall leading to the cowhouse, which has a 19th-century A-frame truss roof.
Local climate
Barn/Cowhouse at Plas Glan-yr-Afon sits in one of the wettest parts of the UK, with an average of 1,380 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 12 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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