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Cof Cymru: National Historic Assets of Wales · Wales

Porth-y-Twr, including Gateway & South Tower

St. David's and the Cathedral Close, Pembrokeshire, Wales

A Grade I listed building in St. David's and the Cathedral Close, Pembrokeshire, designated on 1 March 1963.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Porth-y-Twr, including Gateway & South Tower, St. David's and the Cathedral Close, Pembrokeshire, 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 I
Broad class
Religious, Ritual and Funerary
Date of designation
1 March 1963
Community
St. David's and the Cathedral Close
Unitary authority
Pembrokeshire
Country
Wales
Coordinates
51.88140, -5.26757
Cadw reference
12541

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 1608 map "(13) Cambriae Typus." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1608 · (13) Cambriae Typus. (David Rumsey Map Collection, Stanford Libraries)
  • 1636 · Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ... (David Rumsey Map Collection, Stanford Libraries)
  • 1637 · Particular description of Wales. Cambria seu Wallia (David Rumsey Map Collection, Stanford Libraries)
  • 1898 · 209 St David's (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 13. (David Rumsey Map Collection, Stanford Libraries)

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This record in Cadw's own full report ↗

Cadw's description

Situated at entrance to The Cathedral Close from The Pebbles.

Large C14 bell tower with attached, possibly C15, fortified gate. Rubble stone part ruinous, the bell-tower substantially restored 1929 by W D Caroe.

Bell-tower is large two-stage octagonal tower with moulded plinth and moulded course before set-back bell-stage, ruinous and roofless in old photographs but now with corbelled flat parapet. Bell-stage has large pointed openings, originally longer but part-blocked, with hoodmoulds. Lower stage has E side lancet and N side pointed moulded doorway with column shafts and hoodmould. Studded plank doors. SE stair tower projecting slightly on upper stage and rising to restored octagonal turret. S side obscured by attached gateway.

Gateway and S tower added to S in rougher rubble stone with corbel table below former battlements, now ruinous. Rounded S end with higher corbel table. E front has big segmental pointed arch over roadway, small blocked doorway to right with loop over. To right, without break in walling, S tower with one high window, rounded S end with Close Wall attached to SW; W front window at upper level and lower large pointed light to left, just before change in level of corbel table. To left, segmental-pointed large arch over roadway, and above, to left a small window robbed of ashlar.

Southern range is roofless, but within gateway, two portcullis slots and double archway on N side, robbed of ashlar, giving access to half-round recess with narrow round-headed doorway. South side has round headed narrow doorway. Studded plank doors with iron strap hinges to both doorways.

Group Value.

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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