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Cof Cymru: National Historic Assets of Wales · Wales

Diosg

Llanbrynmair, Powys, Wales

A Grade II listed building in Dolfach, Llanbrynmair, Powys, designated on 31 January 1997.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Diosg, Llanbrynmair, Powys, 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
31 January 1997
Locality
Dolfach
Community
Llanbrynmair
Unitary authority
Powys
Country
Wales
Coordinates
52.59959, -3.61022
Cadw reference
18129

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 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 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)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 150 Dinas-Mawddwy (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Farmhouse located on a platform site at the head of its farmyard, at the foot of the Newydd Ffynyddog, above the small township of Dol-fâch, and accessed by a farm road from the centre of Dol-fâch.

The C18 2-bay lobby-entry gable stack farmhouse was bought by the Rev. John and Mary Roberts of Chapel House, Dol-fâch, where they took a tenancy with their family in 1806. Samuel Roberts, 'SR', who was to become one of the most important radical free thinkers and preachers in Wales of the C19, lived here from 1806 to 1857. He fought for the rights of oppressed tenants, campaigned against slavery, initiated the idea of a national single rate pre-paid post, and was poet and contributor to eisteddfodau, and editor of Y Cronicl. The youngest son, Robert Richard, 'Gryffydd Rhisiart' (1810-1883), who also became eminent in literary fields, was born at Diosg.

Late C18 building of stone with slate roof. Two storeys, main 2-bay range with a lean-to at the upper end, and a lean-to stable set at the lower gable end of the main range. A 2-bay wing was added to the front of the upper bay by Samuel Roberts in 1830, commemorated by a date stone built into the front wall. The main building has a boarded door and small pane iron framed windows (1 replaced). The added wing has 24 and 36-pane iron windows in timber frames, the openings having massive slate lintels. A slate plaque is now attached to the front wall by the door reads DYMA GARTREF SR / 1806-1857.

Lobby entry against the gable stack, with living room with spine beam and ogee stops. Inner parlour and small pantry at the lower end now amalgamated into a kitchen. The wing, improbably said to have been a wine room, has an inner room behind an axial stack.

Included as a good example of an C18 farmhouse with good quality C19 alterations, and particularly for its associations with with the nationally renowned Roberts family

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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