Pont Hemley is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 August 1998. Bridge.
Pont Hemley
- WRENN ID
- gilded-trefoil-swift
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 21 August 1998
- Type
- Bridge
- Address
- Pont Hemley, Llangors, Powys
- OS grid reference
- SO 128 291
- Coordinates
- 51.95382, -3.26934
- Source
- Cadw listing
Description
Pont Hemley is a single arch road bridge built over a river. It is constructed from rubble with dressed stone dressings. The bridge features a recessed segmental river arch that includes voussoirs and a keystone. The abutments have a plinth, and the parapets are symmetrically curved with flat coping that is secured with iron cramps.
Local climate
Pont Hemley sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% of listed buildings.
It experiences an average of 52 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 30 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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