Scawswater Mill is a Grade II listed building in the Cornwall local planning authority area, England. Mill. 3 related planning applications.

Scawswater Mill

WRENN ID
narrow-rampart-violet
Grade
II
Local Planning Authority
Cornwall
Constituency
Truro and Falmouth MP: Jayne Kirkham (Lab)
Country
England
Type
Mill
Address
Scawswater Mill, St. Clement, TR4 9QR
OS grid reference
SW 822 470
Coordinates
50.28277, -5.05824
Source
Historic England listing

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

Description

Scawswater Mill is an early 19th-century miller’s house. It is constructed of painted shale rubble, with slate hanging over studwork to the front first floor. The roof is covered in slurried scantle slate, with brick chimneys rising from the gable ends. The plan consists of two equal reception rooms flanking a central cross passage, which leads to a central stairwell between the rear service rooms.

The house presents a symmetrical three-window south front, with a central doorway containing a ledged door. The ground floor openings are arched with brick. The majority of windows are original; the front windows are 16-pane hornless sashes with much crown glass.

The interior retains original carpentry and joinery, including panelled doors, window shutters, and a closed-string dog-leg stair with a moulded mahogany handrail. A large hearth in the rear right-hand room contains a bread oven. A fielded panel door has been relocated at the entrance to the rear left-hand room. The original roof structure has not been inspected. Scawswater Mill is an unspoiled early 19th-century house notable for its attractive original slatehanging and the retention of most of its original windows and glass.

Local climate

Scawswater Mill receives an average of 890 mm of rain a year. This makes it wetter than 66% 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 6 freeze-thaw cycles a year, fewer than 96% 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 1 transaction since 2015
  • 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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