Boundary Stone at SW 731409 SW is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 3 February 1986. Boundary stone.

Boundary Stone at SW 731409 SW

WRENN ID
solemn-minaret-cream
Grade
II
Local Planning Authority
Cornwall
Constituency
Camborne and Redruth MP: Perran Moon (Lab)
Country
England
Date first listed
3 February 1986
Type
Boundary stone
Address
Boundary Stone at SW 731409 SW, Gwennap
OS grid reference
SW 731 409
Coordinates
50.22476, -5.18201
Source
Historic England listing

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

Description

This is a boundary stone located in Gwennap, dating from the early to mid 19th century. It is made of dressed granite and has a square shape with chamfered corners and a rounded top. The north face features a deeply incised inscription that includes a Roman letter "E" above the Arabic numeral "5". Once common, these boundary stones have become rare, making this one a late example.

Local climate

Boundary Stone at SW 731409 SW receives an average of 870 mm of rain a year. This makes it wetter than 62% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% 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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  • 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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