Barn at Rhiwerfa is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 10 April 2000. Barn.
Barn at Rhiwerfa
- WRENN ID
- shifting-pavement-spring
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 10 April 2000
- Type
- Barn
- Address
- Barn at Rhiwerfa, Abertrinant, Tywyn, Llanfihangel-Y-Pennant, Gwynedd
- OS grid reference
- SH 659 062
- Coordinates
- 52.63694, -3.98252
- Source
- Cadw listing
Description
The barn at Rhiwerfa is a 19th-century structure built from coursed slate rubble on boulder foundations, topped with a slate roof that features raised gables. It has opposed small central cartways with ashlar blue slate lintels, one of which is now blocked on the north side. There are two tiers of slit ventilation openings on each side of the barn, along with three additional openings in the end gable. At the upper (west) end, there are four inconspicuous roof lights. The barn was not accessible at the time of inspection.
Local climate
Barn at Rhiwerfa sits in one of the wettest parts of the UK, with an average of 1,360 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 94% of listed buildings.
It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 10 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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