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Cof Cymru: National Historic Assets of Wales · Wales

Plas Deon

Llanuwchllyn, Gwynedd, Wales

A Grade II listed building in Llanuwchllyn, Bala, Gwynedd, designated on 31 January 2001.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Plas Deon, Llanuwchllyn, 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
31 January 2001
Locality
Llanuwchllyn
Town
Bala
Community
Llanuwchllyn
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.85752, -3.67130
Cadw reference
24714

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

Set back from the road within its own grounds, immediately to the W of Capel Glanaber.

Second-quarter C19 house with minimal C20 alterations.

Three-storey detached house of rubble construction under a scribed render; slate roof with plain bargeboards and large rendered end chimneys. The facade is of three bays and is symmetrical with a central entrance; panelled door with marginally-glazed upper section and 10-pane rectangular overlight. Original unhorned sashes, 16-pane to the ground and first floors and 9-pane to the second; cellar light to the L. The windows are recessed and have projecting slatestone sills. The central first-floor opening is an entrance which gives onto a flat-roofed verandah which runs along the length of the ground floor. The entrance has C20 6-pane double doors. The verandah is carried on 4 slender fluted cast iron columns with concrete plinth blocks, and has wooden lattice panels to the ends. The veranda’s flat roof is of concrete (a mid C20 replacement of its original slate flagging); simple arcaded railings with additional mid C20 steel rail. This is accessed from the L by an original long flight of 12 stone steps with plain C20 rails; 3 further steps of concrete at the top and C20 reconstituted stone piers at the approach. Adjoining the flight to the rear, extruded between it and the L gable of the house, is a contemporary coach house bay (?) of red brick, now a garage; flat roof with steel rails, as before.

The L gable end of the house has a 6-pane horizontal window to the first floor with segmental arch, and 2 small second floor windows, each of 4 panes. The rear has 16- and 9-pane windows as before, and a tall 24-pane central stair light. A single-storey pitched service block adjoins to the L of the rear elevation. This has a squat rendered end chimney and a modern uPVC door to the R return, with window to the R; further plain-glazed window to the L (in an earlier opening).

The interior was not inspected at the time of survey.

Listed as a second-quarter C19 detatched village house retaining good character within its original setting.

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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