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Bron Elidir including surrounding wall and steps to Dinorwic Slate Quarry

A Grade II Listed Building in Llanddeiniolen, Gwynedd

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Latitude: 53.1241 / 53°7'26"N

Longitude: -4.1079 / 4°6'28"W

OS Eastings: 259047

OS Northings: 360622

OS Grid: SH590606

Mapcode National: GBR 5Q.7BLN

Mapcode Global: WH54M.WQ1W

Entry Name: Bron Elidir including surrounding wall and steps to Dinorwic Slate Quarry

Listing Date: 4 November 1999

Last Amended: 4 November 1999

Grade: II

Source: Cadw

Source ID: 22663

Building Class: Domestic

Location: Located in remote position at the end of a track running off the main track/road leading down from Dinorwic towards Llanberis; a curved flight of slate steps with retaining walls rises from the track

County: Gwynedd

Town: Caernarfon

Community: Llanddeiniolen

Community: Llanddeiniolen

Locality: Dinorwic

Traditional County: Caernarfonshire

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Probably built in the 1850s (it is not shown on the 1838 Tithe Map), there is a suggestion that before the opening of the Dinorwic Slate Company hospital above the shore of Llyn Padarn in 1876 this building may have served at least in part as a quarry hospital, after which date it appears to have been a quarry manager's house. 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.


House is a 2-storey T-plan with entrance elevation on north-west. Rendered rubblestone with slate-hung gable ends to main range and further slate hanging to equal-height rear range; slate roofs. Entrance range is in 3 bays with unhorned 16-paned sashes on both floors and central flat-roofed porch with entablature and half-glazed outer door; steep-pitched gables over outer bays have slate coping and cusped bargeboards with pointed finials; integral end stacks with stepped capping are both slate hung. Similar end stack to rear range which has two 16-paned sashes on first floor and entrance to lower right in angle with main range. Large late C20 conservatory to right end of main range. Boundary wall is of dressed tightly jointed slate slabs, skilfully executed, with slab-on-edge coping forming crenellated parapet; slight projection in set-back section of wall opposite flight of steps to quarry has round-headed arch with pointed voussoirs, entablature and recessed nail-studded boarded door. The steps leading to the quarry are wide and of slate slab construction with curving retaining walls, also made of slate slabs.


Interior not accessible at time of Survey.

Reasons for Listing

Included as a largely unaltered mid-C19 building of simple classical style built in the local materials and forming an important element in the C19 development of the Dinorwic Slate Quarry first as company hospital and later as quarry manager's house.

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Other nearby listed buildings

  • II Hafodty
    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.
  • II Tanybryn
    Located on eastern side of road leading from Dinorwic to the Dinorwic Slate Quarry; dry slate slab wall to front with vertical slate slabs as piers to decorative iron gates.
  • II Quarryworkers' Barracks
    Spectacularly and now remotely located off the 'A' Incline of the Dinorwic Slate Quarry just north of the point where it turns abruptly to the north-east; the path between the 2 rows of barracks runs
  • II Incline, Drumhouses and Counter Balances ('A' Incline)
    Incline rising steeply to the north-east of the former Dinorwic Slate Quarry Workshops, running initially south-eastwards and then just to the south-west of the former quarryworkers' barracks turning
  • II Locomotive Shed
    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
  • II Incline and Drumhouses
    Incline and drumhouses rising from the old floor (now car park of the Welsh Slate Museum) to the top level of the former Vivian Slate Quarry; massive slate retaining wall located immediately to the no
  • II Offis Fawr (now Woodcraft Centre)
    Located immediately to the east end of the north range of the former Dinorwic Slate Quarry workshop complex, the building is situated high above the workshops on a quarried outcrop; flight of slate st
  • I Dinorwic Slate Quarry Workshops (Welsh Slate Museum Buildings)
    Located at the south-east end of Llyn Padarn to the east of Llanberis, the quarry workshops sit at the foot of the vast workings of the former Dinorwic Slate Quarry; the immediately surrounding land i

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