Barn at Upper Penllanafal is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 August 1998. Barn.
Barn at Upper Penllanafal
- WRENN ID
- hushed-stone-lark
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 21 August 1998
- Type
- Barn
- Address
- Barn at Upper Penllanafal, Llangors, Powys
- OS grid reference
- SO 155 295
- Coordinates
- 51.95813, -3.22977
- Source
- Cadw listing
Description
The barn at Upper Penllanafal is a large structure that faces a separate byre to the south. It is constructed from limewashed rubble and topped with a corrugated roof. The barn features two tiers of ventilation slits at different heights on either side of the double doors, with a door to the left at the lower level that has a timber lintel. Adjacent stone steps provide access to the loft through a lean-to on the west side. The gable end facing the mountain has two ventilation slits and a pitching door, with a cobbled surround.
Inside, the barn has collar and tie trusses along with three rows of trenched staggered purlins. The threshing floor is made of flagstones and has a stone kerb. At the downhill end, there is a cowshed that accommodates eight cows, with the mangers still in place and a flagstone floor.
Local climate
Barn at Upper Penllanafal sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 82% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 68% of listed buildings.
It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 29 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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