Wellhouse, Gronant is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 19 December 2000. A 19th Century Wellhouse.
Wellhouse, Gronant
- WRENN ID
- dreaming-truss-oak
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 19 December 2000
- Type
- Wellhouse
- Address
- Wellhouse, Gronant, Llanfachraeth, Holyhead
- OS grid reference
- SH 326 852
- Coordinates
- 53.33739, -4.51565
- Source
- Cadw listing
Description
The Wellhouse in Gronant is a circular building constructed from rubble. It features a low entrance on the east side. The roof is corbelled and made with flat stone slabs. At the top of the roof, there is a simple gritstone finial that displays the year '1817' along with the letters 'B' over 'R' and 'J'.
Local climate
Wellhouse, Gronant sits in a wetter-than-average part of the UK, with an average of 1,030 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 93% of listed buildings.
It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 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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