TreeAlive
‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

20 Merthyr Road

Tongwynlais, Cardiff, Wales

The record

Designation
Listed building, Grade II
Broad class
Domestic
Date of designation
6 October 1977
Locality
Tongwynlais
Town
Cardiff
Community
Tongwynlais
Unitary authority
Cardiff
Country
Wales
Coordinates
51.53255, -3.25273
Cadw reference
24407

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 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Towards the N end of the village fronting the main thoroughfare.

Tongwynlais had an important position on the Merthyr to Cardiff highway constructed 1767 which linked the Merthyr ironworks with Cardiff, the village being sited in the narrow entrance to the Taff Vale between the mountains of Fforest Fawr and Garth Wood. It was further developed to serve the important nearby Melingriffith and Pentyrch works producing iron, tinplate, bricks and quarried stone. The grid lay-out of the central village is intact on the first edition Ordnance Survey Map surveyed 1875, with Ainon Baptist chapel nearby built 1827, enlarged 1851, the Glamorgan Canal constructed 1794, and the Taff Vale Railway in1840. Masonry of this terrace is of higher quality and probably a little earlier than that in Wyndham Street adjacent.

Originally staircases rose beside front room fireplace (except for central staircase in no.14), some retained; some stone flagged floors and slabs from former pantries; ground floor ceiling joists of thin scantling, some exposed.

Listed primarily for historic interest as a mid C19 row of workers' cottages.

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
See your own family's places on a living map