Boston Well is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 7 February 2002. Wellhouse.
Boston Well
- WRENN ID
- bitter-plinth-thyme
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 7 February 2002
- Type
- Wellhouse
- Address
- Boston Well, Penrhos Lligwy, Moelfre
- OS grid reference
- SH 485 860
- Coordinates
- 53.34936, -4.27612
- Source
- Cadw listing
Description
Boston Well is a single-storey wellhouse built in a castellated style with a square plan. The structure is made of roughly dressed limestone that is coursed and squared. Currently roofless, it features pilaster buttresses at each corner, and the upper part of the wall slightly projects with embattled coping. The entrance is located in the north wall, flanked by buttresses, and consists of a narrow doorway with dressed voussoirs leading to a shallow pointed head. Above the door, there is a slate plaque that reads: SULPHUR WELL / "BOSTON" / 1864. Additionally, there is a narrow ventilation slit in the rear wall.
Inside, the walls were once rendered, but much of this has weathered away. At the rear, there is a stone slab seat or shelf.
Local climate
Boston Well sits in a wetter-than-average part of the UK, with an average of 1,070 mm of rain a year. This makes it wetter than 86% 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 14 freeze-thaw cycles a year, fewer than 87% of listed buildings. Of these, 5 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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