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Cof Cymru: National Historic Assets of Wales · Wales

Former Locomotive Shed

Llandygai, Gwynedd, Wales

A Grade II listed building in Porth Penrhyn, Llandygai, Gwynedd, designated on 24 May 2000.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Former Locomotive Shed, Llandygai, Gwynedd, 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
24 May 2000
Locality
Porth Penrhyn
Community
Llandygai
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.23349, -4.10978
Cadw reference
23361

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 1896 map "Sheet 7. Ordnance Survey of England and Wales." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Outline) (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 106 Bangor (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
  • 1919 · Sheet 41. Anglesey. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Located on eastern quayside of New Dock towards its southern end at the terminus of the former Penrhyn Railway.

Built in 1876 as part of the new narrow gauge railway line of 1' 10 3/4" (0.6m) running from the Penrhyn Quarry through Tregarth, along the Afon Cegin valley to its terminus at Porth Penrhyn. The Penrhyn Railway continued to operate a passenger service for the quarrymen until 1951 and ceased work in 1962 at which time the rails were taken up.

Long rectagular building in 2 sections, that to rear lower and slightly recessed. Irregularly coursed rubblestone with quoins and reddish brown and yellow brick dressings; slate roofs. Main section has twin round-headed locomotive entrances to front gable end with slate-infilled roundel to apex, all with brick surrounds, reddish brown to inner ring, yellow to outer; long walls in 4 symmetrical bays with plain plinth and piers forming recessed panels in which are set tall rectangular windows (sheeted over at time of Survey) with brick dressings and slate cills and lintels. Lower section has 3 similar windows in plain long walls.

Interior not accesible at time of Survey.

Included as a well-preserved example of a late C19 narrow gauge locomotive shed of some architectural distinction on the old Penrhyn Railway, having strong group value with other structures at Porth Penrhyn.

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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