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A Grade II Listed Building in Llanddeiniolen, Gwynedd

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Latitude: 53.1234 / 53°7'24"N

Longitude: -4.1093 / 4°6'33"W

OS Eastings: 258950

OS Northings: 360550

OS Grid: SH589605

Mapcode National: GBR 5Q.7B7Y

Mapcode Global: WH54M.VRCD

Entry Name: Hafodty

Listing Date: 4 November 1999

Last Amended: 4 November 1999

Grade: II

Source: Cadw

Source ID: 22664

Building Class: Domestic

Location: Situated in remote wooded position at the end of a driveway leading off the track/road leading down from Dinorwic to Llanberis; driveway has drystone slate slab wall with slab-on-edge coping.

County: Gwynedd

Town: Caernarfon

Community: Llanddeiniolen

Community: Llanddeiniolen

Locality: Dinorwic

Traditional County: Caernarfonshire

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Apparently mid-C19 house, the size and quality of which together with its proximity to the quarry suggest that it may have been built for the quarry manager or other senior official within the quarry company. The Dinorwic Quarry was first established in 1787, taking over existing workings in the area, the first incline being built in 1789. By the 1830s there was a tramway system on each terrace of the quarry, steam locomotives being introduced in the 1870s. The eventual scale of the quarry was such that its output of c100,000 tons p.a. in the late 1890s put in on a par with Penrhyn, representing almost a quarter of the total production of Welsh slate. The quarry finally closed in 1969.


Substantial 2-storey building, main section aligned roughly north-south with principal elevation on west and long lower range at right-angles to east on south, the rear (eastern) part of which serves as service quarters. Rendered rubblestone, except for a small area of exposed rubble towards the rear of the service range; slate roofs, hipped to the southern end of the main range where it slopes down over the right-angled range. Principal elevation of 3 bays with large full-height gable to left, small gable breaking eaves in centre and gable of right-angled range on right; 4-paned sashes on first floor and to centre on ground floor; large 12-paned French windows to left and right; tall integral end stack to left and ridge stack to left of centre gable. Long south return of right-angled range has 3 sash windows on first floor, 6-paned to left and 16-paned to centre; integral lateral stack with tall stone shaft on left, stone ridge stack to right of centre and integral end stack to right gable end with paired and rebated brick shafts; lower projecting gabled range between centre and right windows with late C20 lean-to conservatory running along remainder of range to left.


Interior not accessible at time of Survey.

Reasons for Listing

Included as a substantial mid-C19 house retaining much of its original fabric and character, an important element in the quarrying landscape of the former Dinorwic Slate Quarry.

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