Hengoed Viaduct (partly in Maesycwmmer Community) is a Grade II* listed building in the Caerphilly local planning authority area, Wales. First listed on 31 July 1980. Viaduct.
Hengoed Viaduct (partly in Maesycwmmer Community)
- WRENN ID
- stranded-keep-cedar
- Grade
- II*
- Local Planning Authority
- Caerphilly
- Constituency
- Caerphilly MP: Chris Evans (Lab)
- Country
- Wales
- Date first listed
- 31 July 1980
- Type
- Viaduct
- Address
- Hengoed Viaduct (partly in Maesycwmmer Community), Gelligaer
- OS grid reference
- ST 154 949
- Coordinates
- 51.64684, -3.2238
- Source
- Cadw listing
Description
Hengoed Viaduct is a significant structure located partly in the Maesycwmmer Community. It is listed as Grade II*. For a complete description of the viaduct, please refer to Record Number 22325 in the Maesycwmmer Community.
Local climate
Hengoed Viaduct (partly in Maesycwmmer Community) sits in a wetter-than-average part of the UK, with an average of 1,060 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 81% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 59% of listed buildings. Of these, 13 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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