Pont Cwm Banw is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 November 1998. Bridge.
Pont Cwm Banw
- WRENN ID
- crumbling-spire-scarlet
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 19 November 1998
- Type
- Bridge
- Address
- Pont Cwm Banw, Grwyne Fechan, the Vale of Grwyney, Powys
- OS grid reference
- SO 234 228
- Coordinates
- 51.89915, -3.1142
- Source
- Cadw listing
Description
Pont Cwm Banw is a 19th-century single-carriageway bridge made of rubble sandstone. It features a round arch with thin voussoirs. The abutments are splayed out on the downstream side. The low parapet has been partly rebuilt, has a flat coping, and ends in square piers.
Local climate
Pont Cwm Banw sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 27 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.
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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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