Walls surrounding Fonmon Pond including the Bridge and Weir and Well at Fonmon is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 30 September 2004. Bridge, weir, well.
Walls surrounding Fonmon Pond including the Bridge and Weir and Well at Fonmon
- WRENN ID
- other-gallery-pearl
- Grade
- II
- Local Planning Authority
- Vale of Glamorgan
- Constituency
- Vale of Glamorgan MP: Kanishka Narayan (Lab)
- Country
- Wales
- Date first listed
- 30 September 2004
- Type
- Bridge, weir, well
- Address
- Walls surrounding Fonmon Pond including the Bridge and Weir and Well at Fonmon, Barry, Rhoose
- OS grid reference
- ST 047 675
- Coordinates
- 51.39936, -3.37014
- Source
- Cadw listing
Description
The walls surrounding Fonmon Pond include a weir and a bridge, both constructed to manage the brook at Fonmon. The weir is located on the north side, while the bridge spans the stream entry on the south side. The pond is bordered by a low stone wall made of local rubblestone, which is laid in a more or less coursed manner on the east and west sides. The bridge features a low hump, splayed walls with rounded coping, and two small arches. The weir has an overflow situated between stepped walls on either side. On the west side, adjacent to the pond, there is a covered well or dipping place for water supply. Another roofed well is located on the opposite side of the road, which is listed separately. The water in the brook flows north, away from the nearby sea, and after passing Fonmon Castle, it veers west to join the river Thaw.
Local climate
Walls surrounding Fonmon Pond including the Bridge and Weir and Well at Fonmon sits in a wetter-than-average part of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.
It experiences an average of 13 freeze-thaw cycles a year, fewer than 87% of listed buildings. Of these, 5 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.
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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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