Boundary Stone 70 Metres to West of Post Office is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 11 January 1989. Boundary stone.

Boundary Stone 70 Metres to West of Post Office

WRENN ID
roaming-oriel-rush
Grade
II
Local Planning Authority
Cornwall
Constituency
North Cornwall MP: Ben Maguire (LD)
Country
England
Date first listed
11 January 1989
Type
Boundary stone
OS grid reference
SX 317 873
Coordinates
50.66184, -4.38232
Source
Historic England listing

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

Description

This boundary stone, located 70 metres to the west of the Post Office in Werrington Yeolmbridge, is a County boundary stone that likely dates from the early 19th century. It is a low stone post, roughly rectangular in shape, with a deep inscription of the letter 'C' on its face. This stone originally marked the boundary between the counties of Devon and Cornwall.

Local climate

Boundary Stone 70 Metres to West of Post Office sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 84% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 19 freeze-thaw cycles a year, fewer than 81% of listed buildings. Of these, 8 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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