Ha-Ha to South of Llanidan House is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Landscape feature.
Ha-Ha to South of Llanidan House
- WRENN ID
- forgotten-cloister-thrush
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 30 January 1968
- Type
- Landscape feature
- OS grid reference
- SH 495 667
- Coordinates
- 53.17696, -4.25314
- Source
- Cadw listing
Description
The ha-ha located to the south of Llanidan House is a dry-built wall made of local stone. It is constructed on the northwest faces of the ditch that encloses the garden to the south and east of the house. Some sections of the ditch are excavated directly into the rock outcrop.
Local climate
Ha-Ha to South of Llanidan House sits in one of the wettest parts of the UK, with an average of 1,190 mm of rain a year. This makes it wetter than 91% 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 16 freeze-thaw cycles a year, fewer than 84% of listed buildings. Of these, 6 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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