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Cof Cymru: National Historic Assets of Wales · Wales

Dee Mill

Llangollen, Denbighshire, Wales

A Grade II listed building in Llangollen, Denbighshire, designated on 22 December 1989.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Dee Mill, Llangollen, Denbighshire, 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
22 December 1989
Locality
Llangollen
Community
Llangollen
Unitary authority
Denbighshire
Country
Wales
Coordinates
52.97071, -3.17124
Cadw reference
1179

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 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 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)
  • 1898 · 121 Wrexham (Outline) (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

On the S bank of the River Dee just W of Llangollen Bridge. At the end of the lane.

Dated 1786, with the name Trevor Lloyd on the datestone. However, the mill is considerably older. A corn mill is known to have been on the site since C13 and indeed one timber internally is dated 1207 but this is unlikely to be reliable. It is said to have been rebuilt in 1630 and in addition has had C19 rewindowing and modern alterations.

3-storey. Rubble construction with freestone quoins; slate roof, red brick chimney stack and tiled ridge, roughly L-plan. 2-window front facing Dee Lane; Victorian casements to left with red brick dressings, modern windows to right, and stable door entrance to left. The other range projects forward at right angles and has undulating 1-window elevation facing E up Dee Lane; 3-light windows and datestone to 1st floor; modern opening below to left. Tall and broad gable end to left faces up Greenfield; 4-pane window to top and deep window below (at 1st floor level) - this was formerly a loading door (see worn stone cill etc) and has 4-pane overlight.

Pebbledash left side with brace plates and 2 doors near water level. Covered walkway and lower later range to left behind wier. Pebbledash gable end to right with attached single storey corrugated iron range with sash windows. The cross range projects slightly at rear with 1-window elevation. Formerly with large chimney stack (see old photographs).

Internally, on the ground floor there are sturdy timber piers grouped in a semicircle to carry the heavy machinery formerly above, close to the waterwheel. The timber undershot wheel is encased within the body of the building. The drive shafts and pulleys are retained, as is the crane to the top, attic floor where there is a 2-bay king post roof and one part machine sawn timber dated 1207 with carpenters marks.

Group value with Llangollen Bridge.

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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