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Cof Cymru: National Historic Assets of Wales · Wales

Llwyn Onn

Llansantffraid, Powys, Wales

The record

Designation
Listed building, Grade II
Broad class
Domestic
Date of designation
2 March 2004
Locality
Llansantffraid-ym-Mechain village
Community
Llansantffraid
Unitary authority
Powys
Country
Wales
Coordinates
52.77558, -3.15865
Cadw reference
82563

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

Back to back with Bronwylfa, Winllan Road.

A pair of houses facing but well back from Church Lane. Glanaber is dated 'T T / 1861', but is likely to be later than Llwyn Onn, the style of which it copies, but with reduced width. Although the front elevation of the completed pair approximates to regularity, it responds to the irregular siting by Glanaber being a little narrower and deeper than Llwyn Onn, so the two houses are of roughly equal size. The pair are in their completed form contemporary with Bronwylfa to their rear, facing Winllan Road, so they are as a completed group an interesting example of informal back-to-back house planning at a late date prior to the general adoption of building byelaws under the 1875 Act.

By inference Llwyn Onn predates both Glanaber (dated 1861) and Bronwylfa (1862), and as it appears stylistically to be of the early C19, it appears to be the first development of a site later crowded with the three houses in back-to-back relationship.

The brickwork of Llwyn Onn is a little more weathered and irregular than that of Glanaber.

Interior not seen.

A house of early C19 appearance, which has retained its character and which appears to be the nucleus of an interesting housing group of the pre-planning era.

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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