Boundary Stone at SW 764425 SE is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 12 March 1986. Boundary stone.

Boundary Stone at SW 764425 SE

WRENN ID
dim-clay-owl
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
12 March 1986
Type
Boundary stone
Address
Boundary Stone at SW 764425 SE, Chacewater
OS grid reference
SW 763 425
Coordinates
50.24078, -5.13731
Source
Historic England listing

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

Description

This is a tin boundary stone from the early 19th century. It is an undressed round granite moorstone monolith that has eroded over time. On the west road side, there is an incised inscription of the letter W with serifs. These stones were once common and marked the boundaries between mineral rights claims.

Local climate

Boundary Stone at SW 764425 SE 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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