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Cof Cymru: National Historic Assets of Wales · Wales

The Gaer

Forden with Leighton and Trelystan, Powys, Wales

The record

Designation
Listed building, Grade II
Broad class
Domestic
Date of designation
26 October 1953
Locality
Thornbury
Community
Forden with Leighton and Trelystan
Unitary authority
Powys
Country
Wales
Coordinates
52.58860, -3.16877
Cadw reference
7708

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

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1795 "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).

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This record in Cadw's own full report ↗

Cadw's description

Located on a river terrace overlooking the valley of the River Camlad to the SE, at the southern end of the community.

The Gaer is an important site, taking its name from the Roman fort placed in the fields below. The present building is of the mid-late C18 perhaps reworked in early C20.

Roughcast brick with slate roofs. Two storeys, a main-NE-SW range containing the main reception rooms, with a short rear wing at each end. The main SE front is of 5 bays to rhythm a-b-a-b-a, with tripartite 12- and 9-pane sash windows in the bays a, the upper windows provided with louvred shutters. The second bay has a pedimented doorcase, with a 6-panel beaded door and a rose on the entablature fascia, and 9-pane sash window to the first floor above. A later glazed door with a pediment is now set in the second bay b. The central 3 bays have, above the moulded cornice, a triangular pediment with a small central oculus. Gable stacks of brick with yellow clayware pots. A similar stack is placed centrally at the rear of the main range. Nineteenth century 12-pane sashes to the rear range and gable stacks. Offset, and attached to the NE end is a parallel 2-bay building of painted brick with a gable stack, and C19 paned timber windows with cambered heads to ground floor.

Not accessible at the time of inspection (October 1996).

Included as a fine example of a stylish C18 building for a major farm in the area.

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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