Mehal Mill is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 9 October 1984. Water mill. 1 related planning application.

Mehal Mill

WRENN ID
dreaming-iron-plum
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Date first listed
9 October 1984
Type
Water mill
Address
Mehal Mill, St. Keverne, TR12 6PX
OS grid reference
SW 780 221
Coordinates
50.05808, -5.10256
Source
Historic England listing

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

Description

An 18th-century water mill, situated within the parish of St Keverne. The mill is constructed of whitewashed rubble walls with a half-hipped slate roof and a rectangular plan. It has an asymmetrical two-window front, with two storeys. A partly intact 2-light casement window is present on the ground floor to the left, with an entrance to the right of centre. Two 2-light casement windows with glazing bars are located on the first floor. A rubble stone lean-to extends from the left-hand gable end. The ground rises to the right, facilitating loading, and steps lead up to the first-floor entrance within the right-hand gable end. The mill machinery is located low down near the ground floor, within a shallow cog pit. The water wheel, axle, and most of the ironwork are missing, but some wooden gears and two pairs of grinding stones remain. The mill is currently derelict. The site’s history dates back to 1258 and was originally part of the Traboe estate, which extended into the neighbouring parish of St Martin. The estate was granted to the monks of St Michael’s Mount by Robert, Earl of Mortain, around 1087. The mill, formerly known as Melyn Myhall, meaning St Michael's Mill, retains some original features.

Local climate

Mehal Mill receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 2 transactions since 2010
  • 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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  5. The Old Post Office Grade II 1.3 km
  6. K6 Telephone Kiosk, High Street Grade II 1.4 km
  7. Church of St Keverne Grade I 1.4 km
  8. The Vicarage Grade II 1.4 km
  9. Roskruge Barton Farmhouse and Rear Garden Walls Grade II* 1.5 km
  10. Lanarth House Grade II 1.6 km