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Cof Cymru: National Historic Assets of Wales · Wales

Plas Trehelig

Welshpool, Powys, Wales

A Grade II listed building in Llwynderw, Welshpool, Powys, designated on 11 March 1981.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Plas Trehelig, Welshpool, 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
11 March 1981
Locality
Llwynderw
Community
Welshpool
Unitary authority
Powys
Country
Wales
Coordinates
52.62621, -3.16637
Cadw reference
7745

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)
  • 1883 · Watershed map England, Wales 3. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 151 Welshpool (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
  • 1916 · Sheet 60. Shrewsbury. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

On the E of the main A483 road to the N of Llwynderw Hall, 4km. approx S of Welshpool.

History: Largely of c1830 though possibly incorporating an earlier building on the site, and with some later alterations.

Exterior: Brick with slate roofs (replaced by concrete tile on one rear wing); strongly overhanging eaves, end wall and axial stacks. Main range with 2 parallel rear wings; 2 storeys, 4-window main range with entrance to left of centre. This elevation has 4 bays, alternately advanced and recessed, with entrance in the recessed left hand bay: doorway with overlight in reeded architrave, in added timber porch. 16-pane sash windows on each floor in advanced left hand bay and recessed right hand bay, and similar window above the doorway; 12-pane sash window on each floor in the advanced bay to the right of the doorway. All windows have flat arched rendered heads. Parallel rear wings have half-hipped roofs: E wing extended later in the C19 by a single bay.

Interior: Slightly unconventional plan, with entrance hall offset to left of centre, and separate stairhall alongside it to the right. Right hand bay has heavy stop-chamfered ceiling beam, suggesting possible earlier origins.

A well-detailed small house of the early C19 retaining much of its original character.

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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