Barn to the S of Llanfair Isaf is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 November 1966. Barn.
Barn to the S of Llanfair Isaf
- WRENN ID
- keen-moat-ash
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 November 1966
- Type
- Barn
- Address
- Barn to the S of Llanfair Isaf, Gwynedd
- OS grid reference
- SH 575 288
- Coordinates
- 52.83803, -4.11696
- Source
- Cadw listing
Description
This building is a barn located to the south of Llanfair Isaf. It is a very long structure made of dry stone rubble with a graded slate roof and a coped lower gable. There are doorways towards the center and the right side of the original range, both featuring rough projecting lintels. An additional doorway is found in a bay to the left, which also includes a loft entry in the gable end. Attached to the right-hand gable end is a range of cart-sheds, which are likely from the 19th century.
Local climate
Barn to the S of Llanfair Isaf sits in one of the wettest parts of the UK, with an average of 1,460 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.
It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 14 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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