Pont Penprys is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 19 October 1971. Bridge.
Pont Penprys
- WRENN ID
- leaning-trefoil-snow
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 October 1971
- Type
- Bridge
- Address
- Pont Penprys, Pentreuchaf, Pwllheli, Llannor
- OS grid reference
- SH 348 396
- Coordinates
- 52.92868, -4.45767
- Source
- Cadw listing
Description
Pont Penprys is a bridge that forms part of a short raised causeway, allowing the road to cross a narrow section of the Llannor valley. It features a single segmental arch that spans approximately 4.65 meters, constructed with inset rubble voussoirs beneath a regulating course. The arch rises 2.2 meters above the river and is flanked by flush rubble spandrels and a uniform parapet topped with large coping stones. The carriageway is 4.6 meters wide and is nearly level, with parapets that are 45 centimeters thick, which flare out at the ends.
Local climate
Pont Penprys sits in one of the wettest parts of the UK, with an average of 1,660 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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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