Ffynnon Fair is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 19 June 1990. Well.
Ffynnon Fair
- WRENN ID
- lost-spire-jet
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 June 1990
- Type
- Well
- Address
- Ffynnon Fair, Dolgellau, Gwynedd
- OS grid reference
- SH 726 175
- Coordinates
- 52.74057, -3.88836
- Source
- Cadw listing
Description
Ffynnon Fair is a structure built of rubble masonry. It features a rectangular enclosure that is largely collapsed, with the exception of the eastern side where a doorway with a stone lintel remains intact at the extreme right. Inside, there is a stone-lined rectangular pool, and flagstones create a walkway along the enclosure walls.
Historically, the well was believed to be effective in treating rheumatic diseases during the 18th century, but the site may date back much further, as Roman coins were found there in the late 17th century.
Local climate
Ffynnon Fair sits in one of the wettest parts of the UK, with an average of 1,340 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 93% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, more than 52% of listed buildings. Of these, 17 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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