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Cof Cymru: National Historic Assets of Wales · Wales

Former Llay Hall Colliery Chimney and Flue

Gwersyllt, Wrexham, Wales

A Grade II listed building in Sydallt, Gwersyllt, Wrexham, designated on 26 September 1994.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Former Llay Hall Colliery Chimney and Flue, Gwersyllt, Wrexham, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Industrial
Date of designation
26 September 1994
Locality
Sydallt
Community
Gwersyllt
Unitary authority
Wrexham
Country
Wales
Coordinates
53.08824, -3.02396
Cadw reference
15830

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 121 Wrexham (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Located in the group of former Llay Hall Colliery buildings in use as an industrial estate east of Mold Road. The chimney is high on the slope to the west of the site, close to Mold Road.

The flue extends down the slope from the chimney and terminates at the side of the lane.

Llay Hall Colliery operated from 1877 until 1948. It was sunk by the Llay Hall Coal, Iron and Fireclay Company and worked in association with a fire brick works on the opposite side of the River Alyn. It was nationalised in 1947 but closed shortly afterwards, following a serious underground explosion. The chimney and flue serviced the steam boilers for the colliery and probably date from the 1890s.

The chimney is of square section in red brick, and tapers slightly to a height of approximately 25-30m. There are corbelled bands around the base and just below the top. The flue extends in a straight line for approximately 50m to the north, beginning just below ground level and then constructed on the surface following the line of the slope to the bottom. At the edge of the lane it passes through a stone cross-wall and comes to an end near the former position of the boilers. The flue is built with vertical side walls of red brick with a concrete slab top.

Listed as a particularly fine example of a colliery chimney with an unusually long approach flue. The chimney is a prominent local landmark and has group value with the associated former colliery buildings.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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