Ha Ha Wall About 65 Metres South South West of Marden Hill House is a Grade II listed building in the East Hertfordshire local planning authority area, England. First listed on 24 November 1966. Wall.
Ha Ha Wall About 65 Metres South South West of Marden Hill House
- WRENN ID
- hallowed-span-dew
- Grade
- II
- Local Planning Authority
- East Hertfordshire
- Constituency
- North East Hertfordshire MP: Chris Hinchliff (Lab)
- Country
- England
- Date first listed
- 24 November 1966
- Type
- Wall
- OS grid reference
- TL 278 139
- Coordinates
- 51.8093, -0.14637
- Source
- Historic England listing
Description
The ha-ha wall located about 65 meters south-southwest of Marden Hill House is a Grade II listed structure built around 1790 for R. Mackay. This wall is constructed of red brick in Flemish bond and measures approximately 125 meters in length and 1 meter in height, featuring occasional buttressing. It is included in the listing for its group value with the nearby Marden Hill House.
Local climate
Ha Ha Wall About 65 Metres South South West of Marden Hill House sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 88% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 84% of listed buildings.
It experiences an average of 33 freeze-thaw cycles a year, fewer than 55% of listed buildings. Of these, 16 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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