Revetment wall of former Llantrisant Colliery is a Grade II listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 7 October 1994. House.

Revetment wall of former Llantrisant Colliery

WRENN ID
plain-bastion-aspen
Grade
II
Local Planning Authority
Rhondda Cynon Taf
Constituency
Pontypridd MP: Alex Davies-Jones (Lab)
Country
Wales
Date first listed
7 October 1994
Type
House
Address
Revetment wall of former Llantrisant Colliery, Ynysmaerdy, Llanharan, Rhondda Cynon Taff
OS grid reference
ST 033 840
Coordinates
51.54707, -3.39529
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The revetment wall of the former Llantrisant Colliery is a significant structure that supported the main terrace level of the colliery and served as a loading wall for the screens and rail sidings. It runs parallel to and opposite the engine hall on the eastern side of the complex. The wall is approximately 160 meters long and 12 meters high, built of mass concrete for its lower two-thirds, with rubble sandstone above. This type of revetment was particularly characteristic of South Wales collieries, while the use of concrete construction was a new practice at the time.

Local climate

Revetment wall of former Llantrisant Colliery sits in a wetter-than-average part of the UK, with an average of 1,150 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 21 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 8 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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Nearby listed buildings

  1. Engine Hall of former Llantrisant Colliery Grade II 72 m
  2. Barn and cow house at Ynysmaerdy Farm Grade II 119 m
  3. Cow Shed at Ynysmaerdy Farm (formerly stores of Llantrisant Colliery) Grade II 123 m
  4. Hay barn at Ynysmaerdy Farm (former winding engine house of Llantrisant Colliery) Grade II 135 m
  5. Garage at Ynysmaerdy Farm (formerly part of Llantrisant Colliery) Grade II 186 m
  6. Reservoir of former Llantrisant Colliery Grade II 208 m
  7. Explosives store of former Llantrisant Colliery Grade II 283 m
  8. Y Felin Wynt Tower Grade II 1.1 km
  9. The Malthouse Grade II 1.1 km
  10. Water Pump including surrounding revetment walls Grade II 1.1 km