Well Head at SW 7848 3495 is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 31 July 1986. Well.

Well Head at SW 7848 3495

WRENN ID
blind-beam-hawthorn
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
31 July 1986
Type
Well
Address
Well Head at SW 7848 3495, Round Ring, Penryn
OS grid reference
SW 784 349
Coordinates
50.17321, -5.10367
Source
Historic England listing

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

Description

The well head, located at SW 7848 3495, is a structure rebuilt in the early 20th century, likely on the site of the Holy Well of St Gluvias. It is constructed from killas and granite rubble and features two granite monoliths: a jamb on the left and a lintel with a dressed granite jamb on the right, which frame the entrance. The well head includes a small lintelled chamber with a spring leading to a sump, which is connected to serpentine-shaped retaining walls that flank the approach.

Local climate

Well Head at SW 7848 3495 receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% of listed buildings. Of these, 3 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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  • 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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