Boundary Stone at Sw639307 is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 26 August 1987. Boundary stone.
Boundary Stone at Sw639307
- WRENN ID
- kindled-beam-rook
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 26 August 1987
- Type
- Boundary stone
- Address
- Boundary Stone at Sw639307, Crowan
- OS grid reference
- SW 639 356
- Coordinates
- 50.17394, -5.30666
- Source
- Historic England listing
Description
The boundary stone located at SW639307 is a Grade II listed structure, likely dating from the 18th century. It is an unhewn granite monolith featuring the Roman letters "PB" in relief on its south-facing side. This stone served as a tin boundary marker, indicating the limits of a mineral claim held by the landowner or mineral rights owner.
Local climate
Boundary Stone at Sw639307 receives an average of 880 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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