Cromer Windmill is a Grade II* listed building in the East Hertfordshire local planning authority area, England. First listed on 22 February 1967. Windmill. 1 related planning application.

Cromer Windmill

WRENN ID
stranded-moulding-gold
Grade
II*
Local Planning Authority
East Hertfordshire
Constituency
North East Hertfordshire MP: Chris Hinchliff (Lab)
Country
England
Date first listed
22 February 1967
Type
Windmill
Address
Cromer Windmill, Ardeley, SG2 7QE
OS grid reference
TL 304 286
Coordinates
51.94101, -0.10362
Source
Historic England listing

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

Description

Cromer Windmill is an 18th-century post-mill, reportedly dating to around 1720, situated at a road junction northeast of the village of Ardeley. It ceased operation around 1923, underwent repairs in 1937, and was restored with sails and a fantail between 1967 and 1969. The timber-framed structure features horizontal white weatherboarding extending over an ogee-shaped cap. It is supported above an octagonal red brick roundhouse covered with a felted roof. The mill includes an elaborately geared fantail with openwork blades and a carriage fixed to a broad ladder at the rear. A cast iron windshaft originally supported four patent sails (without shutters), which have since been dismantled and stored nearby.

The mill’s unique design incorporates a two-story rotating body mounted on a very large faceted central post, supported by a large timber trestle and sheltered by the roundhouse. The body is carried on a massive crown-tree in the middle floor, suspending the rest of the timber frame. Two stones are now positioned on the upper floor, within the mill’s breast, with cast iron gearing and centrifugal governors situated at a higher level on the lower floor. A hoist system facilitated lifting grain bags to the top of the mill, while wooden chutes conveyed the ground grain to the lower floor. A steep ladder connects the two floors, and small shuttered apertures provide interior lighting. The brake-wheel and brake have been dismantled. The stones were previously arranged with one in the tail and one in the breast, but this configuration proved problematic and was altered, with the tailpole replaced by the current automatic fantail. The mill is located on an artificial mound, a site acquired around 1222 for a manorial windmill.

It is considered a prominent landmark and the only remaining post-mill in the county.

Local climate

Cromer Windmill 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 86% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 78% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 57% 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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  • No EPC on record for this property
  • Sale history — 1 transaction since 1998
  • 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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