Bryn Glas is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 23 May 2003. Farmhouse.
Bryn Glas
- WRENN ID
- muted-parapet-dew
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Montgomeryshire and Glyndwr MP: Steve Witherden (Lab)
- Country
- Wales
- Date first listed
- 23 May 2003
- Type
- Farmhouse
- Address
- Bryn Glas, Tanat Valley, Llangynog
- OS grid reference
- SJ 061 259
- Coordinates
- 52.82279, -3.39353
- Source
- Cadw listing
Description
Bryn Glas is a two-storey farmhouse with three windows, built from uncoursed local slate masonry. It features a slate roof with a tile ridge and brick end-chimneys.
The front elevation is asymmetrical, showcasing timber mullion and transom windows with leaded glazing. There is a boarded door with an overlight, a blank gable on the left side, and two small windows on the right. The rear elevation includes three windows with replaced frames above, a door, and three similar windows below, with one window opening in a former doorway.
Local climate
Bryn Glas sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 72% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 30 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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