Chimney Immediately West of Tywarnhaile Lower Engine House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 31 October 1988. Chimney.

Chimney Immediately West of Tywarnhaile Lower Engine House

WRENN ID
dreaming-groin-gold
Grade
II
Local Planning Authority
Cornwall
Constituency
Camborne and Redruth MP: Perran Moon (Lab)
Country
England
Date first listed
31 October 1988
Type
Chimney
Address
Chimney Immediately West of Tywarnhaile Lower Engine House, St. Agnes
OS grid reference
SW 697 472
Coordinates
50.28046, -5.23294
Source
Historic England listing

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

Description

The chimney located immediately west of the Tywarnhaile Lower Engine House is a detached structure associated with the mine. It is constructed from killas rubble and features a round plan with a tapered shaft. This chimney is part of the historical context of Tywarnhaile Mine, as documented in a survey by Adam Sharpe and John Smith for the Cornwall Archaeological Unit.

Local climate

Chimney Immediately West of Tywarnhaile Lower Engine House 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
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  • 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. Lower Engine House (At Sw698472) Grade II 14 m
  2. United Hills Engine House (At SW 700472) Grade II 225 m
  3. Chimney at Sw695475 (Part of Tywarnhaile Mine) Grade II 312 m
  4. Guide Post at Sw695475 Grade II 374 m
  5. Chimney at Sw703472 Grade II 562 m
  6. Engine House at Sw70234698 Grade II 564 m
  7. Porthtown House Grade II 624 m
  8. Engine House at Sw691479 (Wheal Lushington) Grade II 902 m
  9. Croft Prince Grade II 1.2 km
  10. Higher Croft Prince, Including Gate-Piers to West Grade II 1.4 km