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Cof Cymru: National Historic Assets of Wales · Wales

Afallon, Marine Terrace

Porthmadog, Gwynedd, Wales

A Grade II listed building in Porthmadog, Gwynedd, designated on 26 September 2005.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Afallon, Marine Terrace, 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
26 September 2005
Locality
Porthmadog
Town
Porthmadog
Community
Porthmadog
Unitary authority
Gwynedd
Country
Wales
Coordinates
52.92241, -4.13098
Cadw reference
85363

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 on the hillside to the W of and overlooking the harbour.

Marine Terrace is first shown in a view of Porthmadog by C.F. Williams, dated 1849, and is mentioned by Owen Morris in 1856. The terrace is shown on the 1871 Tremadog estate plan and 1888 Ordnance Survey. No 5 is mid C19 but has late C19 detail to the front.

A symmetrical 2-storey 3-window house of whitened roughcast with rusticated quoin strips and panelled, pedimented architraves, slate roof with added skylights, and shared roughcast stack to the R. The central entrance has a porch with paired fluted columns and moulded cornice, to a half-glazed panel door incorporating coloured-glass panels, and overlight. The sides of the porch have been infilled with wooden latticework. In the lower storey the windows are 3-light casements of an unusual type with small-pane glazing above transoms. The upper storey has similar 2-light windows.

Not inspected.

Listed for its special architectural interest as a well-preserved town house retaining good later stucco work and distinctive fenestration, part of a well-preserved C19 terrace overlooking the harbour and the Cob.

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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