Windmill About 230 Metres to West of Roundabout Plantation is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 4 August 1978. Windmill.

Windmill About 230 Metres to West of Roundabout Plantation

WRENN ID
stony-steel-autumn
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Hitchin MP: Alistair Strathern (Lab)
Country
England
Date first listed
4 August 1978
Type
Windmill
OS grid reference
TL 145 232
Coordinates
51.89599, -0.33688
Source
Historic England listing

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

Description

This is a tower mill located about 230 metres to the west of Roundabout Plantation, dating from the early 19th century. The mill is constructed of red brick and retains some iron and wood fittings. It features a tall, circular, tapering brick tower. The ogee cap has been removed, leaving behind the remains of the curb, frame, and part of the fantail structure. The tower now stands as a shell, with plain openings that have flat arches.

Local climate

Windmill About 230 Metres to West of Roundabout Plantation sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 82% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 76% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 60% of listed buildings. Of these, 17 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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  • 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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