Rounded Ventilation Shaft About 140 Metres South of Canonteign Barton is a Grade II listed building in the Dartmoor National Park local planning authority area, England. First listed on 9 March 1988. Ventilation shaft.

Rounded Ventilation Shaft About 140 Metres South of Canonteign Barton

WRENN ID
crumbling-flue-bramble
Grade
II
Local Planning Authority
Dartmoor National Park
Constituency
Central Devon MP: Sir Mel Stride (Con)
Country
England
Date first listed
9 March 1988
Type
Ventilation shaft
OS grid reference
SX 837 830
Coordinates
50.63524, -3.64572
Source
Historic England listing

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

Description

The rounded ventilation shaft located about 140 metres south of Canonteign Barton is a Grade II listed structure from the late 19th century. It is made of stone rubble and features a rounded, tapering design. At the time of the survey in 1987, the shaft was completely covered in ivy. This shaft is one of two ventilation shafts associated with the Wheal Exmouth lead and barytes mine, which operated from the 1850s to the 1880s and employed 70 underground workers in 1863. The shaft is part of an impressive roadside group that includes a more ornamental octagonal shaft and an adjacent engine house.

Local climate

Rounded Ventilation Shaft About 140 Metres South of Canonteign Barton receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 78% of listed buildings.

It experiences an average of 15 freeze-thaw cycles a year, fewer than 85% of listed buildings. Of these, 6 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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  • No EPC on record for this property
  • Sale history — 1 transaction since 1998
  • No related consent applications matched
  • 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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  2. Cross Shaft in Garden East of Canonteign Barton Grade II 140 m
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  5. North Lodge Grade II 349 m
  6. Walls, Gates and Gate Piers Immediately East of North Lodge Grade II 353 m
  7. Reed Farmhouse Grade II 736 m
  8. Rydon Farmhouse Grade II* 865 m
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  10. Aller Farmhouse Grade II* 1.1 km