History in Structure

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Cwm Coke Works Northern Cooling Tower

A Grade II* Listed Building in Llantwit Fardre, Rhondda Cynon Taff

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Latitude: 51.5662 / 51°33'58"N

Longitude: -3.3491 / 3°20'56"W

OS Eastings: 306585

OS Northings: 186115

OS Grid: ST065861

Mapcode National: GBR HQ.DD9Q

Mapcode Global: VH6DQ.WWTR

Entry Name: Cwm Coke Works Northern Cooling Tower

Location: One of a pair of wooden cooling towers located opposite the offices in the centre of Cwm Coke Works. The second tower is aligned and about 10m to the S.

County: Rhondda Cynon Taff

Town: Pontypridd

Community: Llantwit Fardre

Locality: Tynant

Traditional County: Glamorgan

Listing Date: 24 November 1993

Last Amended: 18 July 2000

Grade: II*

Source: Cadw

Building Class: Industrial

Source ID: 13537


Cwm Coke Works was established in 1957 by the National Coal Board to produce coke from coal mined at Cwm Colliery. The coke was used in iron foundries, metal smelting furnaces, sugar beet refineries, brickworks, and heating boilers. Coke works were once commonplace, and were frequently attached to collieries or steelworks, but few are now operational in Britain. Cooling towers were often found at coke works as well as power stations, chemical works, and other sites where water cooling was necessary, from the late nineteenth century. The earliest were made of timber, but these were gradually replaced with parabolic concrete structures from the 1920s. Very few wooden cooling towers now survive anywhere, although they were once common features of industrial areas throughout the world.

The towers at Cwm Coke Works are unusual in having been built at so late a date, but they follow traditional construction methods going back to the end of the C19.


The north tower is oblong in plan some 12m long and tapers slightly to a flat open top about 15m high. The timber planks which make up the walls are placed vertically and supported on horizontal and diagonal members whch are in turn fixed to an exterior frame of vertical posts, also of wood. The base consists of spaced slats to permit ventilation into the tower. A steam pipe enters the tower on the W face, the draft from beneath causing the steam to condense.

Reasons for Listing

Listed II* as one of an exceptionally rare pair of surviving towers illustrating this important historic technology.

Other nearby listed buildings

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