Melin Llandegfan is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Windmill.
Melin Llandegfan
- WRENN ID
- winter-spindle-saffron
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 30 January 1968
- Type
- Windmill
- Address
- Melin Llandegfan, Cwm Cadnant
- OS grid reference
- SH 566 740
- Coordinates
- 53.24376, -4.15031
- Source
- Cadw listing
Description
Melin Llandegfan is a circular windmill tower built with tapering walls of rubble masonry, some of which is rendered. Originally, it had five storeys but has been reduced in height to just over four storeys. The openings in the structure have square heads, including a blocked entrance at the ground floor. The interior was not inspected during the survey.
Local climate
Melin Llandegfan sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.
It experiences an average of 23 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 11 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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- 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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