Cow-byre on E side of yard at Blaenglyn is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 22 June 2005. Cow-shed.
Cow-byre on E side of yard at Blaenglyn
- WRENN ID
- pale-floor-finch
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 22 June 2005
- Type
- Cow-shed
- Address
- Cow-byre on E side of yard at Blaenglyn, Glyn Tarell, Powys
- OS grid reference
- SN 977 227
- Coordinates
- 51.89417, -3.48676
- Source
- Cadw listing
Description
The building is a cow-byre located on the east side of the yard at Blaenglyn. It dates back to the 19th century and is constructed from whitewashed rubble stone with a slate roof. The structure is one storey high with a loft. The front of the building features the ends of four loft beams that are visible in the wall above five doors. These doors are arranged in a pattern of three, one, and one, and each has timber lintels, although the leftmost door is blocked.
Local climate
Cow-byre on E side of yard at Blaenglyn sits in one of the wettest parts of the UK, with an average of 1,330 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 86% of listed buildings.
It experiences an average of 55 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 32 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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