Pontynys Mill is a Grade II listed building in the Herefordshire, County of local planning authority area, England. First listed on 9 March 1988. Watermill.
Pontynys Mill
- WRENN ID
- tall-bonework-holly
- Grade
- II
- Local Planning Authority
- Herefordshire, County of
- Constituency
- Hereford and South Herefordshire MP: Jesse Norman (Con)
- Country
- England
- Date first listed
- 9 March 1988
- Type
- Watermill
- Address
- Pontynys Mill, Longtown
- OS grid reference
- SO 326 288
- Coordinates
- 51.95391, -2.98167
- Source
- Historic England listing
Description
Pontynys Mill is a disused watermill dating from the early 19th century. It is constructed from coursed rubble stone and features a roof made of Welsh slate and corrugated sheet. The building has an L-shaped plan, with a wing that projects forward on the right side. It stands two storeys tall with an attic.
The facing gable includes a stable door on both the ground and first floors to the left, along with a single-light casement window on each floor. The left return also has a similar casement on both floors, as well as a door on each floor of the main range. There is an extension with boarded windows at the left end of the building. At the rear, there is a large iron and wood high-breast water wheel.
Inside, the mill is reputed to contain an elaborate gearing arrangement with four pairs of French burr stones. It is believed to have been operational until 1939.
Local climate
Pontynys Mill receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 56% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 91% 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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