Norton Mill is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 26 March 1985. Mill.
Norton Mill
- WRENN ID
- muffled-keystone-oak
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 26 March 1985
- Type
- Mill
- Address
- Norton Mill, Presteigne
- OS grid reference
- SO 306 668
- Coordinates
- 52.29578, -3.01885
- Source
- Cadw listing
Description
Norton Mill is an early to mid 19th century, two-storey mill house and mill that now functions as a single residence under one slate roof. The building features a basement storey at the rear that overlooks a stream. Its walls are made of rubble, with segmental rubble voussoirs and rendered stacks. The front has three windows arranged at various levels, which are paired casements with small-pane glazing. There are boarded loading doors at two levels in the centre, with the house door located up steps to the left. The rear wall of the mill is partly weatherboarded and includes modern timber windows and a lean-to slated extension. Notable features include the ironwork and timber brackets of the overshot waterwheel, which remain below the cistern and feed pipe from the elevated mill pool above. Additionally, drive machinery and querns are still present within the house.
Local climate
Norton Mill receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 56% of listed buildings.
It experiences an average of 47 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 26 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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