Purwell Mill is a Grade II listed building in the North Hertfordshire local planning authority area, England. First listed on 17 June 1974. Mill. 1 related planning application.
Purwell Mill
- WRENN ID
- fossil-merlon-magpie
- Grade
- II
- Local Planning Authority
- North Hertfordshire
- Constituency
- Hitchin MP: Alistair Strathern (Lab)
- Country
- England
- Date first listed
- 17 June 1974
- Type
- Mill
- Address
- Purwell Mill, SG4 0NF
- OS grid reference
- TL 204 294
- Coordinates
- 51.95042, -0.24934
- Source
- Historic England listing
Description
Purwell Mill is a building from the 18th century or early 19th century. It features red stretchers and grey headers, topped with a Welsh slated roof and a wooden weatherboarded projecting gable. The structure has two storeys and attics, with four flush casement windows that sit under cambered relieving arches. There is a central door on the first floor, and a ground floor door located on the right, which is sheltered by a cut racketed hood. All listed buildings in Purwell are part of a group.
Local climate
Purwell Mill sits in a drier-than-average part of the UK, with an average of 700 mm of rain a year. This makes it drier than 90% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 79% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more 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
- Sale history — 9 transactions since 1997
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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