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Quarry Offices

A Grade II Listed Building in Llanllyfni, Gwynedd

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Coordinates

Latitude: 53.0603 / 53°3'37"N

Longitude: -4.2253 / 4°13'31"W

OS Eastings: 250970

OS Northings: 353767

OS Grid: SH509537

Mapcode National: GBR 5L.C62C

Mapcode Global: WH54Z.2B7Q

Entry Name: Quarry Offices

Listing Date: 21 July 2000

Last Amended: 21 July 2000

Grade: II

Source: Cadw

Source ID: 23731

Building Class: Industrial

Location: Located between the store building to the north and the barracks to the south-west on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Quarry.

County: Gwynedd

Town: Caernarfon

Community: Llanllyfni

Community: Llanllyfni

Locality: Pen-yr-Orsedd

Traditional County: Caernarfonshire

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Nantlle

History

The quarry offices were built in 2 stages, in c1863 and between 1899 and 1907. 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.

Exterior

Single-storey T-plan office building, the earlier range (cross-wing) to the west, aligned approximately north-south with the later range to the east, aligned roughly east-west. The later range has opposed doors front and back through which the men progressed to collect their wages. Coursed slate rubble construction, the earlier cross-wing with remains of render and probably later slate hanging, the later range with some red brick dressings; gable-ended slate roofs with brick stacks. 12-paned sash to front cross-wing and three 6-paned sashes in later range.

Interior

Original plaster finishes survive.

Reasons for Listing

Listed as a good example of quarry offices at the remarkably well-preserved slate quarry at Pen-yr-Orsedd.

Other nearby listed buildings

  • II Barracks Building
    Located to the south-west of the quarry offices on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Q
  • II Quarry Hospital
    Located to the south-east of the quarry offices on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Q
  • II Store Building
    Located between the former slate mill to the north-east and the quarry offices to the south-west on
  • II Workshops
    Located to the south of the slate mill on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Quarry.
  • II Winding Drumhouse and Incline
    Located to the south-east of the slate mill on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Quarr
  • II Slate Mill
    Directly adjoining the slab mill to the south on Level IV (Bonc Isa') of Pen-yr-Orsedd Slate Quarry.
  • II Slab Mill
    Directly adjoins the large slate mill on Level IV (Bonc Isa') of Pen-yr-Orsedd Slate Quarry.
  • II Locomotive Shed
    Directly adjoins the drumhouse on Level IV (Bonc Isa') of Pen-yr-Orsedd Slate Quarry.

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