Treveal Mill is a Grade II listed building in the Cornwall local planning authority area, England. Mill.

Treveal Mill

WRENN ID
stranded-moulding-sage
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Type
Mill
Address
Treveal Mill, Zennor
OS grid reference
SW 475 401
Coordinates
50.2072, -5.53972
Source
Historic England listing

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

Description

Treveal Mill is a miller's house, likely built in the 17th century, with remodels in the 19th century and extensions in the 20th century. It is constructed of granite rubble with granite dressings and features a scantle slate roof with a brick chimney on the right gable end and another on the rear left corner. The building has an irregular two-room plan, with a smaller, irregularly-shaped room on the left that has very thick walls, and a deeper room on the right that projects slightly at the front. There is a 20th-century addition at the far right and behind the main structure. The exterior is two storeys high, with a slightly irregular two-window front facing northeast and an approximately central doorway. The middle and right parts of the house are built forward. The entrance has a 20th-century door, while the left side features late 19th-century four-pane horned sash windows, and the right side has later four-pane two-light casements. Inside, there is a large fireplace in the right-hand room. The mill is part of an unspoiled coastal hamlet situated within the ancient field system of this area of Cornwall.

Local climate

Treveal Mill sits in a wetter-than-average part of the UK, with an average of 970 mm of rain a year. This makes it wetter than 75% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. Average temperatures at this location have risen by 0.2°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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