Parish Boundary Stone at SW 728438 SW (Between Original Chacewater and Gwennap Parishes) is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 3 February 1986. A Georgian Boundary stone.

Parish Boundary Stone at SW 728438 SW (Between Original Chacewater and Gwennap Parishes)

WRENN ID
ragged-cobble-vale
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Date first listed
3 February 1986
Type
Boundary stone
Period
Georgian
OS grid reference
SW 728 437
Coordinates
50.25016, -5.18722
Source
Historic England listing

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

Description

The parish boundary stone, located at SW 728438 SW, dates from the early 19th century. It is made of granite and is a monolith, roughly hewn, with an inscription that is currently hidden. This stone marks the boundary between the original Chacewater and Gwennap parishes and also delineates the mineral rights of local landowners. It is one of a series of 35 similar stones included in this listing.

Local climate

Parish Boundary Stone at SW 728438 SW (Between Original Chacewater and Gwennap Parishes) receives an average of 920 mm of rain a year. This makes it wetter than 70% 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, 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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Nearby listed buildings

  1. Parish Boundary Stone at SW 728 437 (Between Original Gwennap and Chacewater Parishes) Grade II 1 m
  2. Parish Boundary Stone at SW 728 437 (Between Original Gwennap and Chacewater Parishes) Grade II 10 m
  3. Parish Boundary Stone at SW 728437 SW (Between Original Chacewater and Gwennap Parishes) Grade II 88 m
  4. Killifreth Farmhouse Grade II 139 m
  5. Parish Boundary Stone at SW 729 436 (Between Original Gwennap and Chacewater Parishes) Grade II 140 m
  6. Tregullow House Grade II 174 m
  7. Milepost on West Side of B3298 at SW 727 439 Grade II 202 m
  8. Tregullow Cottage at SW 730 435 Grade II 245 m
  9. Zimapan House Grade II 256 m
  10. Parish Boundary Stone at SW 730435 SW (Between Original Chacewater and Gwennap Parishes) Grade II 269 m