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Cof Cymru: National Historic Assets of Wales · Wales

Ty'n y Twll

Mawddwy, Gwynedd, Wales

A Grade II listed building in Dinas Mawddwy, Machynlleth, Mawddwy, Gwynedd, designated on 4 November 1999.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Ty'n y Twll, Mawddwy, Gwynedd, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1913), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Designation
Listed building, Grade II
Broad class
Domestic
Date of designation
4 November 1999
Locality
Dinas Mawddwy
Town
Machynlleth
Community
Mawddwy
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.75128, -3.69502
Cadw reference
22577

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1795 map "To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most humbly inscribed by his obedient humble servant" (Llyfrgell Genedlaethol Cymru – The National Library of Wales).

Historical maps covering this location

  • 1795 · To Sir Watkin Williams-Wynn Bart ... the map of the six counties of North Wales is most… (Llyfrgell Genedlaethol Cymru – The National Library of Wales)
  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 136 Bala (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

The house stands in a slightly elevated position near the head of the Cwm Cywarch, facing over to the W.

Built in the early-mid C19 as a more substantial farmhouse of this upland area.

Built of coursed rubble, slate roof with rooflight and large gable stack at the N end. Two storeys, symmetrical 2-bay frontage extending to the right as an open fronted cart shed. Central boarded door in a frame set back in the thickness of the wall. Two light small-paned windows to either side of the door and on the upper floor, with a further one over the entrance door. The cartshed to the right has a cambered timber lintel, and a granary over, accessed by an external stone stair at the gable end. On the left, a 2-storey 1 bay rear service wing, apparently contemporary, with a door and 2-light windows to each floor and a gable stack.

Living room on the left, a central stair hall, and the parlour, originally unheated, on the right.

Included as a typical and well preserved example of a more substantial upland farmhouse, reflecting the increasing prosperity of farming in remote valley bottom areas of the time.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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