Coldvreath Mill is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 28 August 1987. Corn mill. 1 related planning application.

Coldvreath Mill

WRENN ID
peeling-grate-aspen
Grade
II
Local Planning Authority
Cornwall
Constituency
St Austell and Newquay MP: Noah Law (Lab)
Country
England
Date first listed
28 August 1987
Type
Corn mill
Address
Coldvreath Mill, Roche, PL26 8LS
OS grid reference
SW 986 583
Coordinates
50.39092, -4.8335
Source
Historic England listing

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

Description

This is a late 19th-century corn mill built of granite rubble, with the upper section of the left gable in cob. It is situated into a bank, with the water leat (artificial channel) running on an embankment to the rear, and a wheel pit to the rear right. The roof is of slurried slate with gable ends and ridge coping tiles, the rear slope is in slate, and some sections are covered with corrugated iron.

The mill is two storeys high. A small, single-storey shed is attached to the front right, featuring two doors and two 20th-century six-pane windows, under a corrugated asbestos roof. A former two-storey addition is partially visible on the left side, marked by a straight joint. It retains small ventilation openings to the front and rear, and a doorway to the front left. The rear of the mill has ventilation slits at ground floor level on both sides, and a stone flight of steps leading to a central loading door under the eaves. Another stone stairway descends to the wheel pit, which contains a cast iron overshot waterwheel made by Oatey and Martyn of Wadebridge. The leat is carried on an embankment to the rear of the wheel. A small single light with a granite lintel is present in the right gable end loft. The interior remains uninspected.

Local climate

Coldvreath Mill receives an average of 960 mm of rain a year. This makes it wetter than 74% 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 10 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 4 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 — 5 transactions since 1999
  • 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
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