Hammels and hammel yard walls, Gronant is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 16 February 2001. Hammel yard walls.
Hammels and hammel yard walls, Gronant
- WRENN ID
- final-copper-dew
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 16 February 2001
- Type
- Hammel yard walls
- Address
- Hammels and hammel yard walls, Gronant, Holyhead, Llanfaethlu
- OS grid reference
- SH 326 852
- Coordinates
- 53.33756, -4.51459
- Source
- Cadw listing
Description
Hammels and the hammel yard walls in Gronant are a 19th-century structure. The hammel range features rubble walls topped with a slate roof and includes five wide openings with segmentally arched brick heads. The two bays on the right have been partly infilled with a stone plinth wall and timber boarding above. The yard wall is also built of rubble and has openings to the south and west, with the southern opening likely having been enlarged. The lower part of the yard is terraced above ground level.
Local climate
Hammels and hammel yard walls, 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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