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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
53.05924, -4.22649
Cadw reference
23737

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

Directly adjoins the drumhouse on Level IV (Bonc Isa') of Pen-yr-Orsedd Slate Quarry.

Built in 1878 to house the locomotive Kelso, later extended to hold a second locomotive. The quarry opened c1816 when it was worked by William Turner. In 1863 it was bought by W A Darbishire & Co., after which it underwent substantial modernisation, reflected in the use of both water and steam power. During the 1890s about 450 men worked here; it finally closed in 1997.

Roughly coursed slate-slab constructed rectangular plan building with extension to south-east end; gable-ended slate roof (slates largely missing at time of Survey). Main entrance in north-west gable end with 2 pedestrian doorways, one blocked, to north-east long wall.

A-frame trusses.

Included as part of the remarkably well-preserved complex of structures at Pen-yr-Orsedd Slate Quarry, forming a group with other buildings on Level IV and important also as a structure from the first major period of expansion at the quarry.

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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