Unity Mill is a Grade II listed building in the Amber Valley local planning authority area, England. First listed on 13 December 1979. Mill.
Unity Mill
- WRENN ID
- haunted-obsidian-summer
- Grade
- II
- Local Planning Authority
- Amber Valley
- Constituency
- Mid Derbyshire MP: Jonathan Davies (Lab)
- Country
- England
- Date first listed
- 13 December 1979
- Type
- Mill
- Address
- Unity Mill, Derwent Street, Belper
- OS grid reference
- SK 345 475
- Coordinates
- 53.02395, -1.48582
- Source
- Historic England listing
Description
Unity Mill is a mid-19th century mill constructed of coursed stone and features a hipped slate roof. The building is T-shaped and has four storeys. The north/south range includes coved bracketed eaves and an off-centre advanced bay with a gable above, consisting of approximately ten bays. The windows are irregularly placed and generally have glazing bars. The rear east/west wing also has around ten bays, with sashes that include glazing bars, but features a blank top floor. There is an additional block at the angle of the 'T' and tall roof vents.
Local climate
Unity Mill receives an average of 780 mm of rain a year. This makes it drier than 60% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 67% of listed buildings.
It experiences an average of 38 freeze-thaw cycles a year, more than 74% of listed buildings. Of these, 19 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
- 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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