Crowan Mill is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 1 May 1970. Mill, house. 3 related planning applications.

Crowan Mill

WRENN ID
fallen-rafter-cream
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Date first listed
1 May 1970
Type
Mill, house
Address
Crowan Mill, TR14 9NB
OS grid reference
SW 644 343
Coordinates
50.16206, -5.29991
Source
Historic England listing

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

Description

Crowan Mill is a mill and millhouse, with the millhouse likely dating from the 18th century and the mill from the mid to late 19th century. The structure features granite rubble walls with dressed granite quoins, sills, jambstones, and lintels. The house is made of moorstone, while the mill has slate sills. Both buildings have scantle slate roofs; the house has rendered chimneys on its gable ends.

The taller mill is attached to the left side of the house and has a hipped roof that runs at right angles to the front. The layout includes a double depth, two-storey house with a cross passage between the two front rooms. The mill, which is three storeys over a basement, projects further back on the left side. The overshot wheel and its bearing wall are located on the left side of the mill. The wheel features wooden buckets and an inner cog wheel made of applewood and hornbeam. The machinery, which was last used in 1946, has been kept in good running order.

The mill has a symmetrical three-bay front with loading doorways in the middle of each floor and a window on either side. The second-floor doorway has a dormered gable above to provide additional headroom, along with a cantilevered staging and railing in front. The mill's doors are ledged, and it has four-pane windows, with very small windows in the basement. The house has a nearly symmetrical two-window front with a central doorway, which is set within a 20th-century gable-ended porch. The windows in the house are six-pane horned sashes. The interiors have not been inspected.

Local climate

Crowan Mill receives an average of 880 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% 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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  • No EPC on record for this property
  • No sale records on file
  • Related listed building consents — 3 applications
  • 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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