Pilot beacon (S) is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 27 November 2000. Navigation marker.
Pilot beacon (S)
- WRENN ID
- slow-lantern-thrush
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 27 November 2000
- Type
- Navigation marker
- Address
- Pilot beacon (S), Carmel Head, Cylch-Y-Garn
- OS grid reference
- SH 297 926
- Coordinates
- 53.40356, -4.56246
- Source
- Cadw listing
Description
This is a tall navigation marker, approximately 10 meters high and 5.5 meters wide, constructed from mortared rubble masonry. The front face of the beacon was once heavily limewashed. It features a raking slab that is angled slightly to the rear and is supported by a raking buttress. The buttress has a rounded head, and the front face is capped with stone. The front face of the raking slab aligns with two other beacons.
Local climate
Pilot beacon (S) 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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