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Cof Cymru: National Historic Assets of Wales · Wales

Old Castle motte

Llanelli, Carmarthenshire, Wales

The record

Designation
Scheduled monument
Site type
Motte
Period
Medieval
Date of designation
3 December 2003
Community
Llanelli
Unitary authority
Carmarthenshire
Country
Wales
Coordinates (centre of the scheduled area)
51.68193, -4.17048
SAM number
CM323
Cadw record number
4053

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).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Monument.

The monument comprises the remains of a medieval motte and bailey castle. The mound measures roughly 30m in diameter; it is partially submerged within the reservoir of the former Old Castle Tinplate works. The motte has been identified as likely site of the historic Castle of Carnwyllion, destroyed by Rhys Ieuanc of Dinefwr (d. 1222) during his attack on Kidwelly and the Gower in 1215.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive organisation. The monument forms an important element within the wider medieval context and the structure itself may be expected to contain archaeological information in regard to chronology, building techniques and functional detail.

The area scheduled comprises the remains described and an area around them within which related evidence may be expected to survive. It is circular and measures 30m in diameter.

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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