Mona Windmill is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 7 August 1974. A 19th century Windmill.
Mona Windmill
- WRENN ID
- kindled-porch-bittern
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 7 August 1974
- Type
- Windmill
- Period
- 19th century
- Address
- Mona Windmill, Porth Amlwch, Amlwch
- OS grid reference
- SH 448 934
- Coordinates
- 53.4151, -4.3359
- Source
- Cadw listing
Description
Mona Windmill is an early 19th century windmill with a tapering circular tower. It stands tall at seven storeys, with the lower part constructed of rubble masonry and the upper storeys made of brick. The windmill was originally rendered, and some traces of this render still remain. The openings feature shallow cambered heads, and the ground floor has a doorway with a brick head, while an opposing doorway has been blocked. The complete tower includes a cap frame at the top. The interior was not inspected during the survey.
Local climate
Mona Windmill sits in a wetter-than-average part of the UK, with an average of 1,040 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.
It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% 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 0.2°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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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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