Bwlch Gwernog is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 25 November 1998. Cottage.
Bwlch Gwernog
- WRENN ID
- errant-pillar-mint
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 25 November 1998
- Type
- Cottage
- Address
- Bwlch Gwernog, Ty Mawr, Porthmadog, Beddgelert, Gwynedd
- OS grid reference
- SH 611 452
- Coordinates
- 52.98665, -4.06968
- Source
- Cadw listing
Description
Bwlch Gwernog is a single-storey cottage built from whitened rubble. It has a two-unit plan with later additions on both the right and left sides. The cottage features a slate roof with a tiled ridge and is supported by boulder foundations, along with four squat chimneys. The central section has a main entrance with a modern boarded door, flanked by modern windows in small primary openings. On either side of the entrance, there is low buttressing made of rubble, along with slab-benching. The extensions on both sides have end chimneys; the right extension is stepped down and has a corrugated iron roof, featuring a modern boarded door. The left extension includes a further boarded door on the right and a modern window on the left. The front roof pitch has four modern skylights, with two in the primary section and two in the left-hand section. The interior was not inspected during the survey.
Local climate
Bwlch Gwernog sits in one of the wettest parts of the UK, with an average of 1,500 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 98% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 16 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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