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Quarry Hospital

A Grade II Listed Building in Llanllyfni, Gwynedd

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Latitude: 53.0602 / 53°3'36"N

Longitude: -4.2251 / 4°13'30"W

OS Eastings: 250983

OS Northings: 353750

OS Grid: SH509537

Mapcode National: GBR 5L.C63J

Mapcode Global: WH54Z.2BBV

Entry Name: Quarry Hospital

Listing Date: 21 July 2000

Last Amended: 21 July 2000

Grade: II

Source: Cadw

Source ID: 23740

Building Class: Industrial

Location: Located to the south-east of the quarry offices 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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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. The social concerns of the quarry company in the late C19 are evident in the existence of this building, which dates from this period, and in the quality of the barracks accommodation.


Single-storey rectangular plan building, aligned roughly north-west to south-east with gabled projection to centre on front. Uncoursed rubblestone with red brick dressings; gable-ended slate roofs, slates largely missing at time of Survey, and central brick stack. Lower central gabled projection has pair of door openings and small 2-light window above. Pair of windows flanking gable, each with 2-light casement and brick reveals.


Much of the original plasterwork survives intact.

Reasons for Listing

Included as a well-preserved and rare example of a quarry hospital at the remarkable Pen-yr-Orsedd Slate Quarry complex, illustrating the social organisation of the quarry.

Other nearby listed buildings

  • II Quarry Offices
    Located between the store building to the north and the barracks to the south-west on Level VI (Bonc
  • 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 Workshops
    Located to the south of the slate mill on Level VI (Bonc yr Offis) of Pen-yr-Orsedd Slate Quarry.
  • II Store Building
    Located between the former slate mill to the north-east and the quarry offices to the south-west on
  • 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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