Westernmost Salmon Well is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 9 April 1998. Well.

Westernmost Salmon Well

WRENN ID
leaning-chancel-sorrel
Grade
II
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
9 April 1998
Type
Well
Address
Westernmost Salmon Well, Penllyn, Cowbridge
OS grid reference
SS 972 766
Coordinates
51.47985, -3.48122
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Westernmost Salmon Well is a rectangular well that has been partially cut into rock. To the east, there is a masonry bridge. The well's outflow leads into a stone-walled channel.

Local climate

Westernmost Salmon Well sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.

It experiences an average of 19 freeze-thaw cycles a year, fewer than 80% of listed buildings. Of these, 7 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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  • Detailed attributes — period, style, materials, features
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  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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Nearby listed buildings

  1. Central Salmon Well Grade II 7 m
  2. Easternmost Salmon Well Grade II 28 m
  3. Village Farmhouse Grade II 265 m
  4. The Old School House Grade II 586 m
  5. Church of St. John the Evangelist Grade II 617 m
  6. Great House Grade II 626 m
  7. Gatepiers, Gates and Boundary Walls at entrance to Penllyn Castle Main Drive Grade II 631 m
  8. Lodge Cottage Grade II 646 m
  9. Penllyn Cottage Grade II 646 m
  10. Penllyn Castle Grade II 916 m