Engine House at South Polgooth Tin Mine is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 20 December 1988. Industrial.
Engine House at South Polgooth Tin Mine
- WRENN ID
- plain-alcove-rook
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Austell and Newquay MP: Noah Law (Lab)
- Country
- England
- Date first listed
- 20 December 1988
- Type
- Industrial
- Address
- Engine House at South Polgooth Tin Mine, St. Mewan
- OS grid reference
- SW 989 498
- Coordinates
- 50.31461, -4.82507
- Source
- Historic England listing
Description
The engine house at South Polgooth Tin Mine is a late 19th-century structure featuring an attached chimney. It is built from stone rubble with granite quoins and has a brick chimney. The engine house has a rectangular plan, with the bob wall located to the north and the chimney attached to the southeast corner.
The building is three stories high, and the gable end on the south side includes a circular chimney that has a brick cornice and tapers towards the top. The lower part of the chimney is constructed from stone rubble, likely rebuilt in brick at the upper level. The bob wall of the engine house contains a rectangular opening with a doorway at ground floor level. There is also a doorway with a granite lintel in the west wall at ground floor, and each level of the south gable end features a window.
Local climate
Engine House at South Polgooth Tin Mine receives an average of 910 mm of rain a year. This makes it wetter than 68% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 7 freeze-thaw cycles a year, fewer than 95% of listed buildings. Of these, 3 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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
- No sale records on file
- 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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