Milestone West of Doublebois (Ngr Sx1957564908) is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 20 November 2008. Milestone.

Milestone West of Doublebois (Ngr Sx1957564908)

WRENN ID
errant-rood-dust
Grade
II
Local Planning Authority
Cornwall
Constituency
South East Cornwall MP: Anna Gelderd (Lab)
Country
England
Date first listed
20 November 2008
Type
Milestone
Address
Milestone West of Doublebois (Ngr Sx1957564908), A38, Dobwalls
OS grid reference
SX 195 649
Coordinates
50.45619, -4.54305
Source
Historic England listing

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

Description

The milestone west of Doublebois dates from around 1834 and is a triangular stone with a top that slopes slightly towards the front. It features incised lettering in Roman capitals and Arabic numerals, with the western face reading 'L 3 ½' and the eastern face 'B 9'. Originally, the stone was painted white with black letters, but very little paint remains today.

This milestone was erected as part of the improvements made by the Bodmin Turnpike Trust, established by an Act of Parliament in 1769 to enhance the roads leading into Bodmin. The Trust's initial route to Liskeard was indirect, and in November 1834, plans were published for a new, more direct route through the Glynn Valley. Along this new route, nine milestones were installed, of which eight still exist today, including this one.

The milestone is designated at Grade II because it remains in its original location and is intact. It serves as a notable example of an early 19th-century milestone, reflecting the standardization of roads and the establishment of turnpikes to support the transport needs of Cornwall's growing industrial landscape during that period.

Local climate

Milestone West of Doublebois (Ngr Sx1957564908) sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 82% 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 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 7 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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Nearby listed buildings

  1. Glenlea the Old Farmhouse Grade II 211 m
  2. Doublebois House Grade II 426 m
  3. Milepost West of Gelly Copse Cottage (Ngr Sx1909764205) Grade II 852 m
  4. Milepost West of Railway Bridge (Ngr Sx2052164801) Grade II 943 m
  5. Treverbyn Lodge Grade II 1.1 km
  6. Treverbyn Vean Grade II* 1.2 km
  7. Ashford Bridge Grade II 1.3 km
  8. Caduscott Grade II 1.5 km
  9. Trago Farmhouse Grade II 1.7 km
  10. West Killatown Farmhouse Grade II 1.7 km