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A Grade II Listed Building in Llanddeiniolen, Gwynedd

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Latitude: 53.142 / 53°8'31"N

Longitude: -4.1046 / 4°6'16"W

OS Eastings: 259323

OS Northings: 362610

OS Grid: SH593626

Mapcode National: GBR 5Q.65DF

Mapcode Global: WH54M.X9L3

Entry Name: Bryn-brith

Listing Date: 4 November 1999

Last Amended: 4 November 1999

Grade: II

Source: Cadw

Source ID: 22646

Building Class: Domestic

Location: Situated at end of short track in remote moorland-edge location on eastern side of minor road leading north from Dinorwic to join the road from Deiniolen to Mynydd Llandegai; set in its own stone-wall

County: Gwynedd

Town: Caernarfon

Community: Llanddeiniolen

Community: Llanddeiniolen

Locality: Dinorwic

Traditional County: Caernarfonshire

Find accommodation in


Shown on the 1838 Tithe Map, the cottage is likely to have been built as part of a smallholding created after 1814: the Enclosure Award of that year, following the Enclosure Act promoted by Thomas Assheton Smith the first (1752-1828) in 1806-08, allotted to the Vaynol Estate most of the mountain common close to his Dinorwic Slate Quarry. These holdings were typically of between 3 and 10 acres (1.2 and 4ha), characterised by the regular pattern of their field boundaries and enabled the quarrymen and their families to supplement their paid income by engaging in subsistence agriculture. While the plots were laid out by the Estate, the quarrymen themselves were responsible for building the cottages; the process of enclosure was initially contested by existing squatters on the common, including several quarrymen and their wives during the 'riot' of 1809.


Single-storey 2-room plan, aligned roughly north-east to south-west. Irregularly coursed rubblestone with extensive traces of render; graded slate roof with coped verges. Front has windows (joinery largely gone at time of Survey) with slate cills on either side of slightly offset boarded door; integral end stacks with slate drips. In poor condition.


Interior not accessible at time of Survey.

Reasons for Listing

Included, notwithstanding its poor condition, as an essentially well-preserved and largely unaltered early C19 quarryman's cottage typical of the type authorised by Thomas Assheton Smith as part of his development of the Dinorwic Slate Quarry after c1814. The cottage forms part of a group of these buildings on the moorland edge near Dinorwic, a classic illustration of the way in which this major landowner sought to control the process of settlement associated with the exploitation of the Dinorwic quarries and encourage the development of marginal land.

Other nearby listed buildings

  • II Parc-y-garnedd
    Situated at end of short track in remote moorland-edge location on eastern side of minor road leading north from Dinorwic to join the road from Deiniolen to Mynydd Llandegai; set in its own stone-wall
  • II Cefn-y-Waen Chapel including Vestry/Schoolroom and forecourt walls
    Approximately 0.7km south-east of Deiniolen, about 200m east of Eglwys Crist; front faces roughly south-west.
  • II Eglwys Crist (Christ Church)
    Situated in large roughly square-shaped churchyard approximately 0.5 km east of Deiniolen and 200m west of Cefn-y-Waen Chapel on north side of road from Deiniolen to Dinorwic; the church is aligned no
  • II Ty'n-fawnog
    Situated on north-west side of cross roads at Dinorwic approximately 100m north-west of the Presbyterian church; skilfully executed dry slate slab wall to road frontage.
  • II Disused cottage immediately to north-east of Maes Eilian
    Set at an oblique angle above the road to the rear of a group of Council houses (Maes Eilian) on the north side of the minor road from Dinorwic to Deiniolen; low slate-stone wall in front of cottage.

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