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Cof Cymru: National Historic Assets of Wales · Wales

Locomotive Shed

Llanllyfni, Gwynedd, Wales

The record

Designation
Listed building, Grade II
Broad class
Industrial
Date of designation
21 July 2000
Locality
Pen-Yr-Orsedd
Town
Caernarfon
Community
Llanllyfni
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.06246, -4.22299
Cadw reference
23727

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

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1795 "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).

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This record in Cadw's own full report ↗

Cadw's description

Located immediately to the north of the incline and drumhouse at the south-east corner of Level VIII (Bonc Brig) of Pen-yr-Orsedd Quarry.

Built between 1900 and 1915 during a period of expansion at the quarry. The quarry opened c1816 and in 1863 it was bought by W A Darbishire & Co. During the 1890s about 450 men worked here; it finally closed in 1997.

Regularly coursed slate slabs; slate roof with exposed rafter feet and integral end stack to south-east gable. Rectangular plan. One tall and one lower entrance, both with steel lintels, to north-west gable end. 12-light horizontal window in south-east gable end. Alongside is an iron tank on a slate plinth, used for supplying water to the locomotives.

Roof in 2 bays with central A-frame truss.

Included as a well-preserved early C20 locomotive shed with contemporary weighbridge house directly adjacent.

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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