Lighthouse and watchtower, with attached building at the entrance of the old harbour is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 7 August 1974. House. 4 related planning applications.
Lighthouse and watchtower, with attached building at the entrance of the old harbour
- WRENN ID
- far-plaster-rowan
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 7 August 1974
- Type
- House
- OS grid reference
- SH 450 934
- Coordinates
- 53.41534, -4.33294
- Source
- Cadw listing
Description
This is a mid-19th century, three-storey lighthouse and watchtower, accompanied by a long single-storey building at the entrance of the old harbour. It is constructed from rubble masonry with limestone dressings and a plinth, topped with slate roofs. The lighthouse and watchtower feature battered walls and a hipped roof. The lower two storeys display exposed stonework, including large limestone quoins at the corners. Above the second storey, there is a slightly advanced string course, and the upper elevations are rendered. The windows are six-pane casements, with one on each storey of the south elevation and a single upper storey window at the west end of the north elevation, which faces the sea.
The long range attached to the east wall of the tower likely originally had a gable roof, but it has since been raised along the south wall and now has a single pitched roof sloping down to the north. The south elevation features a doorway at the far left (west) end, with a six-pane casement window to its right. Offset towards the right end of the range are two narrow slots. At the far right (east) end, there is a wide doorway with a shallow cambered head, inscribed with the date 1853.
The interior was not inspected during the survey.
Local climate
Lighthouse and watchtower, with attached building at the entrance of the old harbour 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
- Related listed building consents — 4 applications
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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