Lettered Stone on North Bank of Red River at SW 610 405 is a Grade II listed building in the Cornwall local planning authority area, England. Boundary stone.

Lettered Stone on North Bank of Red River at SW 610 405

WRENN ID
vast-storey-elm
Grade
II
Local Planning Authority
Cornwall
Constituency
Camborne and Redruth MP: Perran Moon (Lab)
Country
England
Type
Boundary stone
Address
Lettered Stone on North Bank of Red River at SW 610 405, Camborne
OS grid reference
SW 610 415
Coordinates
50.22516, -5.35182
Source
Historic England listing

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

Description

The lettered stone, likely dating from the 19th century, is situated on the north bank of the Red River. Made of granite, it features a very short round-headed post with incised letters on its face: "S N I." While the specific history of this stone is not known, it resembles boundary stones that mark mineral rights in the area, similar to those found near former mines, such as the one beside the east engine house of Grenville United Mine on Newton Road in Troon.

Local climate

Lettered Stone on North Bank of Red River at SW 610 405 receives an average of 910 mm of rain a year. This makes it wetter than 68% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 1 follows 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
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  • 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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