Leat Retaining Wall at Treforest Tinplate Works is a Grade II* listed building in the Rhondda Cynon Taf local planning authority area, Wales. First listed on 27 October 1980. Retaining wall.

Leat Retaining Wall at Treforest Tinplate Works

WRENN ID
stony-cinder-swift
Grade
II*
Local Planning Authority
Rhondda Cynon Taf
Constituency
Pontypridd MP: Alex Davies-Jones (Lab)
Country
Wales
Date first listed
27 October 1980
Type
Retaining wall
Address
Leat Retaining Wall at Treforest Tinplate Works, Pontypridd, Rhondda Cynon Taff
OS grid reference
ST 087 879
Coordinates
51.58299, -3.31897
Source
Cadw listing

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

Description

The leat retaining wall at Treforest Tinplate Works is a significant structure dating from 1835. It is located on the west side of the rolling mill and is constructed from snecked rubble, with sections heightened or repaired using hammer-dressed snecked stone and topped with rock-faced copings. Near one of the large doorways of the rolling mill, there is a tablet that reads 'WC 1835 Perseverance', which reflects the motto of the Crawshay family. The feeder features seven sluices with cast iron frames, originally designed for raising sluice gates, although all of these are now bricked up.

Local climate

Leat Retaining Wall at Treforest Tinplate Works sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 33 freeze-thaw cycles a year, fewer than 53% of listed buildings. Of these, 14 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. Former Rolling Mill at Treforest Tinplate Works Grade II* 14 m
  2. Former Smithy at Treforest Tinplate Works Grade II* 69 m
  3. Former Tinning House at Treforest Tinplate Works Grade II* 151 m
  4. Workshop NW of Tinning House at Treforest Tinplate Works Grade II* 209 m
  5. Former Casting House and Workshop at Treforest Tinplate Works Grade II* 249 m
  6. Rhydyfelin War Memorial Grade II 415 m
  7. Forest House, University of Glamorgan Grade II 765 m
  8. Pig Sty at Berthlwyd Farm Grade II 868 m
  9. Treforest Tinplate Works Feeder Sluice and Weir Grade II 1.0 km
  10. Crawshay Obelisk SW of Castle Bridge Grade II 1.1 km