Mill at Sw74903736 is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 17 June 1988. Mill.

Mill at Sw74903736

WRENN ID
eastward-brick-vermeil
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
Mill at Sw74903736, Stithians
OS grid reference
SW 749 373
Coordinates
50.1934, -5.15511
Source
Historic England listing

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

Description

The building is a water mill for grinding gunpowder, dating from the early to mid-19th century. It was constructed for the Kennal Vale Gunpowder Works. The mill is made of dressed granite and granite rabble and is currently roofless. It has a rectangular plan with two-storey blocks that originally featured basements for the gearing and millstones located on the upper floors. The mill is built into the bank at the rear and was originally powered by water from a leat that runs parallel to the back.

The exterior consists of two storeys, with a stone floor over the basement. The east-south-east front is symmetrical with two windows. There is a tall central wheelpit opening flanked by two identical one-window fronts. Each front includes a small basement opening and a large opening above. There are doorways into the end walls. The interior has not been inspected, but it may contain machinery and millstones. This mill is part of a group of six similar mills that remain in the picturesque Kennal Valley and is unique for having a gable end.

Local climate

Mill at Sw74903736 receives an average of 870 mm of rain a year. This makes it wetter than 62% 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 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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  5. Mill at Sw75033747 Grade II 168 m
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  7. Bridge at SW 7506 3747 Grade II 203 m
  8. Office, Stables and Waggon Sheds Immediately East of Kennal Vale Mill Grade II 453 m
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