History in Structure

This site is entirely user-supported. See how you can help.

Locomotive Shed

A Grade II Listed Building in Llanddeiniolen, Gwynedd

Approximate Location Map
Large Map »
Street View
Contributor Photos »

Street View is the best available vantage point looking, if possible, towards the location of the building. In some locations, Street View may not give a view of the actual building, or may not be available at all. Where it is not available, the satellite view is shown instead.


Latitude: 53.1218 / 53°7'18"N

Longitude: -4.1141 / 4°6'50"W

OS Eastings: 258624

OS Northings: 360380

OS Grid: SH586603

Mapcode National: GBR 5Q.7944

Mapcode Global: WH54M.SS3M

Entry Name: Locomotive Shed

Listing Date: 4 November 1999

Last Amended: 4 November 1999

Grade: II

Source: Cadw

Source ID: 22657

Building Class: Transport

Location: Situated to the north-east of the former Dinorwic Slate Quarry Workshops, the locomotive shed is located immediately north of the entrance to the Glan-y-Bala tunnel which once provided a connection to

County: Gwynedd

Town: Caernarfon

Community: Llanddeiniolen

Community: Llanddeiniolen

Locality: Gilfach Ddu

Traditional County: Caernarfonshire

Find accommodation in


Built in the late C19 to serve as a locomotive shed on the Padarn 4ft (1.22m) gauge railway, which opened in 1843 to transport slate from the Dinorwic Quarry to Port Dinorwic. This particular shed appears to have housed the locomotive which passed through the Glan-y-Bala tunnel to connect with the south-eastern area of the quarry until tipping allowed the line to be relaid around the bluff. The lean-to on the north gable end appears to be a later addition.


Long rectangular-plan high single-storey structure with lean-to addition on north gable end. Main building of snecked rock-faced rubblestone with slate-stone quoins; dressed slate-stone slabs to lean-to; slate roof with long gabled ventilated louvre to ridge of main shed; banded slates on lean-to. Long west wall of shed has 3 tall round-headed decorated cast-iron windows (of very similar pattern to those in Quarry Workshops) with tightly jointed pointed slate voussoirs and slate cills; integral slate-stone stack with moulded capping to north. South gable end has pointed doorway for locomotive with dressed slate voussoirs; lean-to on north has window to west and doorway on north.


Interior not accessible at time of Survey.

Reasons for Listing

Included as a well-preserved example of a late C19 4ft (1.22m) gauge locomotive shed of some architectural distinction on the old Padarn Railway, having strong group value with related quarry structures at the former Dinorwic Slate Quarry.

Other nearby listed buildings

BritishListedBuildings.co.uk is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact BritishListedBuildings.co.uk for any queries related to any individual listed building, planning permission related to listed buildings or the listing process itself.

British Listed Buildings is a Good Stuff website.