Great Wheal Prosper China Clay Works is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 28 August 1987. Industrial.

Great Wheal Prosper China Clay Works

WRENN ID
steep-spandrel-merlin
Grade
II
Local Planning Authority
Cornwall
Constituency
St Austell and Newquay MP: Noah Law (Lab)
Country
England
Date first listed
28 August 1987
Type
Industrial
Address
Great Wheal Prosper China Clay Works, Roche
OS grid reference
SX 001 595
Coordinates
50.40218, -4.81318
Source
Historic England listing

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

Description

Great Wheal Prosper China Clay Works is a late 19th-century china clay works constructed from granite rubble and brick. The building features a slate roof with gable ends and is a long rectangular structure that is single storey, standing on a granite plinth. It has an open front with 20th-century doors. At the west end, there is a circular chimney, approximately 4 metres in diameter at the base, made of granite rubble and tapered, with cast iron banding; the upper section is constructed from brick and includes a cornice.

To the south, there are remains of tanks with granite rubble walls about 2 metres high, with the easternmost tank still in use. A 2-storey 20th-century building is located between the eastern tanks and the drying building. Along the north side of the drying building, remnants of a railway branch line can be found, which was previously used for transporting china clay and also served the nearby Carbis Brick and Tile Works.

Local climate

Great Wheal Prosper China Clay Works 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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