Pont Llwyncyntefin is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 17 January 1963. Bridge.
Pont Llwyncyntefin
- WRENN ID
- standing-string-crimson
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 17 January 1963
- Type
- Bridge
- Address
- Pont Llwyncyntefin, Sennybridge, Maescar, Powys
- OS grid reference
- SN 924 291
- Coordinates
- 51.95058, -3.56644
- Source
- Cadw listing
Description
Pont Llwyncyntefin is a large road bridge constructed from rubble stone. It features two prominent recessed arches that are separated by a substantial triangular cutwater, which has been chamfered back to create a rounded pedestrian refuge. The bridge has a thin stone coping. The upstream side remains original, showcasing stone voussoirs in the arch and outer arch. The eastern downstream side has been widened by about half of the original width, designed to match the existing style, with the original bridge line still visible in the arch soffit. On the western side of the refuge, there is a plaque that reads 'P/HE/1750/ EI TW Masons/ I. Gwyn fculptit', while the opposite side features a plaque commemorating the widening. The parapets of the bridge splay out at the ends, except on the northeast side.
Local climate
Pont Llwyncyntefin sits in one of the wettest parts of the UK, with an average of 1,300 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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