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Cof Cymru: National Historic Assets of Wales · Wales

The Holy Well and Cell

Llangoed, Isle of Anglesey, Wales

A Grade I listed building in Penmon, Llangoed, Isle of Anglesey, designated on 5 February 1952.

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of The Holy Well and Cell, Llangoed, Isle of Anglesey, 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
5 February 1952
Locality
Penmon
Community
Llangoed
Unitary authority
Isle of Anglesey
Country
Wales
Coordinates
53.30632, -4.05671
Cadw reference
5437

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 1883 map "Watershed map England, Wales 3." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 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 · 94 Beaumaris (Hills) (David Rumsey Map Collection, Stanford Libraries)
  • 1901 · Sheet 9 and 10. (David Rumsey Map Collection, Stanford Libraries)
  • 1919 · Sheet 41. Anglesey. (David Rumsey Map Collection, Stanford Libraries)

Get directions ↗

This record in Cadw's own full report ↗

Cadw's description

Set back, along a trackway, from the N side of a country road leading to the SE tip of the island at Black Point, or Trwyn Du, Penmon. The Holy Well and Cell are c50m NNE of the Priory Church of St Seiriol at Penmon.

C6 stone foundations of a monk's cell which probably mark the settlement of St Seiriol, founder of the religious community at Penmon. Close by the cell is an ancient well, now with a rectangular stone basin and forecourt. The well is now housed in a red brick and stone shelter; the upper part of which was probably built in the early C18.

Sub rectangular limestone foundations of monks cell standing up to a height of c0.5m. To the NE of the cell is an ancient well, now with a rectangular flagged forecourt with rough limestone walling and crude stone benches along the E and W sides. Over the well is a small red brick and limestone building, built into the cliff face to the W. The building has a shallow gabled roof and a single doorway offset to the W with narrow vent slit to the E. The lower part of the walling is of stone and slightly battered, the brickwork is weathered and the building was once rendered, some remains.

Interior walls are rendered. The open doorway leads into a rectangular chamber, with a rectangular basin for the well set into the flagged stone floor. There are crude flagstone benches along the N and E walls and rectangular recesses in the walls above; one is said (by RCAHM) to have been partly blocked by a slate slab with a coronet above the initials and date B / R B 1710, though this is no longer present.

Listed as the remains of an early Christian site with remains of a C6 monastic cell and ancient well; rare evidence for the form of early religious functions, and with considerable group value in its association with the Priory buildings of Penmon.
Ancient Monument No 1/1838/AN 062 (ANG) G.

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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