Tower of Windmill at Mill Farm is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 24 October 1988. Windmill tower. 1 related planning application.

Tower of Windmill at Mill Farm

WRENN ID
woven-sentry-rowan
Grade
II
Local Planning Authority
North Hertfordshire
Constituency
Hitchin MP: Alistair Strathern (Lab)
Country
England
Date first listed
24 October 1988
Type
Windmill tower
Address
Tower of Windmill at Mill Farm, Luton Road, Offley, SG5 3DR
OS grid reference
TL 133 268
Coordinates
51.92895, -0.35336
Source
Historic England listing

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

Description

The tower of the windmill at Mill Farm is a structure from the 18th century or early 19th century. It is built of red brick in English bond and features a flat pointed roof made of corrugated sheeting. This circular structure has two storeys and is unusually wide, with steeply battered thick walls. There are boarded doors at two levels on the east side and rectangular small pane windows located at the cardinal points. It may be the base of a taller structure, and there are remains of tar coating on the exterior.

Local climate

Tower of Windmill at Mill Farm sits in a drier-than-average part of the UK, with an average of 730 mm of rain a year. This makes it drier than 80% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 77% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 70% of listed buildings. Of these, 18 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
  • Related listed building consents — 1 application
  • 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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  2. South Range of Farm Buildings at Westbury Farm, Running from Westbury House to Road Grade II 828 m
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  6. South View West View Grade II 943 m
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