Lower Tregarne Mill is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 17 June 1988. Mill. 1 related planning application.
Lower Tregarne Mill
- WRENN ID
- floating-basalt-rook
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Camborne and Redruth MP: Perran Moon (Lab)
- Country
- England
- Date first listed
- 17 June 1988
- Type
- Mill
- Address
- Lower Tregarne Mill, Mawnan, TR11 5JP
- OS grid reference
- SW 765 295
- Coordinates
- 50.12354, -5.12769
- Source
- Historic England listing
Description
A mill dating from the early 19th century, constructed of granite and killas rubble with granite dressings. It has a slurried scantle slate roof with gable ends. The rectangular plan includes a wheel pit at the right-hand end, where the wheel has been removed. A leat, which would have fed an overshot wheel, returns at right angles in front on the right side of the building. External steps lead to the right, and there is a small, 19th-century single-storey extension set at a right angle behind the right-hand side.
The north front is two storeys high and has an irregular facade with a single window. A doorway is positioned approximately centrally on the left, above which is a first-floor window. A gable-dormered loading doorway is located towards the right, accessed by a shallow flight of stone steps. A large granite monolith spans the space between the steps and the high retaining wall of the leat, functioning as a step and providing access to cantilevered steps built into the wall.
The interior has not been inspected, but the roof structure is likely original, although the mill machinery has been removed.
Local climate
Lower Tregarne Mill 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 91% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 3 transactions since 2014
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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