Barn at Waunmynich is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 17 January 1963. Barn. 5 related planning applications.
Barn at Waunmynich
- WRENN ID
- riven-granite-jackdaw
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 17 January 1963
- Type
- Barn
- Address
- Barn at Waunmynich, Waunymynach, Llangors, LD3 0TL
- OS grid reference
- SO 090 298
- Coordinates
- 51.95925, -3.32486
- Source
- Cadw listing
Description
This is an 8-bay barn, likely dating to the 18th century, constructed from stone rubble and now topped with a corrugated roof. It features two sets of double doors facing each other, with a roof overhang forming a hood above. A distinctive regional feature, and nationally uncommon, are the paired threshing floors, reflecting the prosperity of the area. The barn has two rows of ventilation slits, with three slits at each gable end, and a double row of red brick pigeon holes positioned above a stone ledge. Adjoining the main barn range is a 3-bay granary to the left, accessible by stone steps at the gable end, which also include cart sheds below. The granary displays segmental arches over two ground-floor doorways, a window on the left, and the granary openings above, mirroring the gable end treatment. A pigeon loft extends horizontally across the entire range at the same level as the granary. A later, single-storey range is attached at a right angle to the original barn. The interior features collar and tie beam trusses with three rows of trenched purlins, and the floor is largely earth.
Local climate
Barn at Waunmynich 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 52 freeze-thaw cycles a year, more than 93% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 6 transactions since 2010
- Related listed building consents — 5 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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