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Cof Cymru: National Historic Assets of Wales · Wales

21 Sgwar y Farchnad (High Street)

Porthmadog, Gwynedd, Wales

A Grade II listed building in Tremadog, Porthmadog, Gwynedd, designated on 30 March 1951.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of 21 Sgwar y Farchnad (High Street), Porthmadog, 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
No class recorded
Date of designation
30 March 1951
Locality
Tremadog
Community
Porthmadog
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.94001, -4.14067
Cadw reference
85327

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)
  • 1896 · Sheet 7. Ordnance Survey of England and Wales. (David Rumsey Map Collection, Stanford Libraries)
  • 1899 · 119 Snowdon (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

A terraced house raised above street level, to the E of Market Square.

Tremadog was the creation of William Madocks (1773-1828), the first phase of which was built in the first decade of the C19 century. Nos 19-23 High Street were built in the mid C19 and are shown on the 1871 Tremadog estate plan and 1888 Ordnance Survey.

Belongs to a group of 19-23 High Street, Tremadog.

A row of three 2-window houses of 3 storeys with attic and basement, of large blocks of local quarried stone laid in regular courses and with large stone lintels, renewed slate roof with skylights, 2 stone ridge stacks and a pebble-dashed stack to the L end. In each house the entrance is above street level, reached up slate steps to the doorway on the R side. No 19 has a replacement panel-door and overlight and 4-pane horned sashes. On the L side are steps down to a central replacement half-glazed basement door, with replacement window to its L. No 21 has a replacement half-glazed door with overlight, and 2-pane sash windows. Steps lead down to a replacement half-glazed basement door with replacement window to its L. No 23 has a panel door under a late C19 overlight, and 2-pane horned sash windows. Steps lead down to a replacement half-glazed basement door and replacement window. The L gable end (No 19) is pebble-dashed.

Not inspected.

Listed as one of a short row of houses, retaining a strong sense of integrated design, using local stone and with definite C19 character. Contributes to the historical integrity of Tremadog.

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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