Cornish Engine House of Penprys Colliery is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 12 January 1999. Engine house.
Cornish Engine House of Penprys Colliery
- WRENN ID
- hidden-minaret-moon
- Grade
- II
- Local Planning Authority
- Carmarthenshire
- Constituency
- Llanelli MP: Dame Nia Griffith (Lab)
- Country
- Wales
- Date first listed
- 12 January 1999
- Type
- Engine house
- Address
- Cornish Engine House of Penprys Colliery, Llangennech
- OS grid reference
- SN 540 018
- Coordinates
- 51.6961, -4.11372
- Source
- Cadw listing
Description
The Cornish engine house of Penprys Colliery is a ruin constructed from local sandstone, featuring brick dressings around its openings. The masonry is laid in an informal manner, with larger dressed stones used at the corners. There are door openings on the south and east sides, and windows located on the north side and at a high level in the east gable. The openings have cambered arches with timber inner lintels. Some masonry on the west side has collapsed, but the engine house still stands to its full height, although it is now roofless. The foundations of associated machinery have been recorded on the west side of the engine house and are included in the Ancient Monument scheduling, though they are currently obscured by undergrowth and tipping. The basement of the engine house is approximately 3 meters below ground level and features a central cross wall.
Local climate
Cornish Engine House of Penprys Colliery sits in one of the wettest parts of the UK, with an average of 1,450 mm of rain a year. This makes it wetter than 98% 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 12 freeze-thaw cycles a year, fewer than 89% of listed buildings. Of these, 4 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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