Ha Ha is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 26 January 1987. Wall.

Ha Ha

WRENN ID
woven-railing-barley
Grade
II
Local Planning Authority
Cornwall
Constituency
South East Cornwall MP: Anna Gelderd (Lab)
Country
England
Date first listed
26 January 1987
Type
Wall
Address
Ha Ha, Maker-With-Rame
OS grid reference
SX 454 531
Coordinates
50.35818, -4.17461
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The ha-ha at Mount Edgcumbe Country Park is likely from the late 18th century or early 19th century. It is constructed of rubble and stands approximately 1.5 metres high. The wall runs about 25 metres in an east/west direction and 200 metres in a north/south direction.

Local climate

Ha Ha sits in a wetter-than-average part of the UK, with an average of 990 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.

It experiences an average of 9 freeze-thaw cycles a year, fewer than 91% 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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  • 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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