Roydon Mill is a Grade II listed building in the Epping Forest local planning authority area, England. First listed on 6 December 1974. Watermill.
Roydon Mill
- WRENN ID
- frozen-floor-marsh
- Grade
- II
- Local Planning Authority
- Epping Forest
- Constituency
- Harlow MP: Chris Vince (Lab)
- Country
- England
- Date first listed
- 6 December 1974
- Type
- Watermill
- OS grid reference
- TL 402 102
- Coordinates
- 51.77344, 0.03142
- Source
- Historic England listing
Description
Roydon Mill is an early 19th-century watermill. It features yellow stock brick on the ground and first floors, with a timber frame and weatherboarding above. The roof is covered with grey slate and the building stands three storeys tall. It has a four-window range, with fixed iron windows that include glazing bars and small opening lights. The windows on the lower floors have segmental heads. At the south end of the mill, there are boarded loft doors and a projecting loft hoist that is supported on curved braces.
Local climate
Roydon 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 88% of listed buildings.
It experiences an average of 34 freeze-thaw cycles a year, fewer than 52% 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 32 transactions since 1995
- No related consent applications matched
- 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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