Farm Buildings at Llwyfan is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. Farm building.
Farm Buildings at Llwyfan
- WRENN ID
- turning-corridor-tallow
- 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 October 1998
- Type
- Farm building
- Address
- Farm Buildings at Llwyfan, Myarth, Llanfihangel Cwmdu with Bwlch and Cathedine, Powys
- OS grid reference
- SO 157 212
- Coordinates
- 51.88379, -3.22567
- Source
- Cadw listing
Description
The farm buildings at Llwyfan consist of a continuous range on a steep slope, featuring a barn at the upper end and a cow house below it, which has a separate, lower roof. The buildings are constructed from random rubble sandstone and topped with slate roofs.
The barn includes a sliding wooden door for cart access in the center, with a vent slit to the right. To the left, at a lower level, there are two stable doors leading to the basement. The right gable end features a loft opening, while the rear has full-height double doors leading to a passage, flanked by two vent strips on the left and one on the right.
The cow house has a central doorway with a replaced lintel. To the right, there are two doorways with segmental heads, and to the left, there is a pair of similar doorways along with a window further left. Above, there is a central loft doorway beneath the wall plate, which has a boarded door. There is also a later lean-to on the left gable end, below stepped vent strips, as well as additional later lean-tos at the back.
The barn features a flagged cart passage, and both the barn and cow house have roofs supported by tie- and collar-beam trusses.
Local climate
Farm Buildings at Llwyfan sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.
It experiences an average of 54 freeze-thaw cycles a year, more than 94% 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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