Transformer House, Llanllyfni, Gwynedd

Coordinates

Latitude: 53.064 / 53°3'50"N

Longitude: -4.225 / 4°13'30"W

OS Eastings: 251000

OS Northings: 354177

OS Grid: SH510541

Mapcode National: GBR 5L.BS6D

Mapcode Global: WH54Z.27BX

Plus Code: 9C5Q3Q7F+JX

Entry Name: Transformer House

Listing Date: 21 July 2000

Last Amended: 21 July 2000

Grade: II

Source: Cadw

Source ID: 23672

Building Class: Industrial

ID on this website: 300023672

Location: Located on Level VIII (Bonc Brig) of the Pen-yr-Orsedd Slate Quarry towards the foot of the modern steep access road from Y Fron.

County: Gwynedd

Town: Caernarfon

Community: Llanllyfni

Locality: Pen-yr-Orsedd

Traditional County: Caernarfonshire

Tagged with: House

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History

Built in 1906 for the first supply of electricity to the quarry from Cwm Dyli power station, itself opened that year and pioneering in Britain for the being the first to use alternating current. 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.

Exterior

Regularly coursed slate slabs; slate roof with 2 transverse gables to the gable ends, that to the front (north-west) larger. Wall below has 2 rectangular window openings (boarded at time of survey); tall doorway with boarded double doors to side (north-east) wall.

Interior

Access not available at time of Survey.

Reasons for Listing

Included as a well-preserved transformer house built to provide the first remote-generated electricity supply to the quarry in 1906, a pioneering development at this time.

External Links

External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.

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Other nearby listed buildings

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II Locomotive Shed
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History in Structure

Transformer House

A Grade II Listed Building in Llanllyfni, Gwynedd