Grove Colliery Cornish Beam Engine House is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 18 March 1997. Engine house.
Grove Colliery Cornish Beam Engine House
- WRENN ID
- roaming-keep-spindle
- Grade
- II
- Local Planning Authority
- Pembrokeshire
- Constituency
- Mid and South Pembrokeshire MP: Henry Tufnell (Lab)
- Country
- Wales
- Date first listed
- 18 March 1997
- Type
- Engine house
- Address
- Grove Colliery Cornish Beam Engine House, Kilgetty, Kilgetty/Begelly
- OS grid reference
- SN 139 071
- Coordinates
- 51.73174, -4.6962
- Source
- Cadw listing
Description
The Grove Colliery Cornish Beam Engine House is a large structure, measuring about 7 meters by 10 meters, built in the Cornish style. It faces north towards the location of its pit, which is now capped. Although the building is currently roofless, it remains intact to its full height. The exterior walls are faced with squared limestone in irregular courses, while the backing is made of local sandstone. The bob-wall, which is approximately 1.65 meters thick, is constructed entirely of limestone. Above the level where the beam bears, the masonry shifts to larger courses.
The front features a tall arched opening, and the rear has a lower but wider archway. Both arches are plain and circular in shape. The side walls contain smaller brick-arched openings. Internally, there are apertures for girders in the north and south walls, as well as high-level window openings on the sides and rear, which are arched with backing lintels and have splayed sides.
Inside, the building has been plastered, but some areas of finished stonework suggest that it was originally designed to showcase fair-faced masonry.
Local climate
Grove Colliery Cornish Beam Engine House sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 1 follows 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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