Gwern Einion is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 23 May 2003. Farmhouse.
Gwern Einion
- WRENN ID
- sombre-storey-evening
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 23 May 2003
- Type
- Farmhouse
- Address
- Gwern Einion, Llanfair, Gwynedd
- OS grid reference
- SH 590 286
- Coordinates
- 52.83678, -4.09406
- Source
- Cadw listing
Description
Gwern Einion is a two-storey farmhouse, now featuring a lean-to addition at the left (north) gable. The building is constructed from roughly coursed squared rubble masonry, with large stones used for the quoins and lintels. It has a modern slate roof that includes advanced eaves and gables, along with small rooflights set into the front pitch. The farmhouse has rectangular stone stacks that are topped with dripstones and capping.
On the principal elevation, there is a three-window arrangement with widely spaced windows and a central doorway. The ground floor windows are horned sash windows with 16 panes, while the first floor features unequal sash windows with 12 panes. The door is centrally located, and there is an additional single doorway in the front wall of the lean-to addition.
The interior was not inspected during the survey.
Local climate
Gwern Einion 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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