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Cof Cymru: National Historic Assets of Wales · Wales

Ty-Newydd Mound & Bailey Castle

Llannor, Gwynedd, Wales

A scheduled monument in Llannor, Gwynedd, recorded as Motte and Bailey (Medieval).

Ordnance Survey six-inch map, 2nd edition (1888–1913) covering the location of Ty-Newydd Mound & Bailey Castle, Llannor, 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
Scheduled monument
Site type
Motte and Bailey
Period
Medieval
Community
Llannor
Unitary authority
Gwynedd
Country
Wales
Coordinates (centre of the scheduled area)
52.91661, -4.46044
SAM number
CN096
Cadw record number
559

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 1830 map "V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40" (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1830 · V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40 (David Rumsey Map Collection, Stanford Libraries)
  • 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 · 118 Nevin (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

The following provides a general description of the Scheduled Monument.

The remains of a medieval earthwork castle consisting of a motte with slight traces of a bailey.

The top of the motte is 6m above the bottom of the surrounding ditch, and is 8m in diameter. On the W, where best preserved, the ditch and counterscarp bank are 12m wide, and the top of the bank is 2m above the bottom of the ditch and 1.5m above the outer ground level. The bank has been levelled on the E side. Slight traces of a bank are visible in the field to the E, possibly the outer wall of the bailey. Before the present Tŷ Newydd was built in the 17th century an earlier house stood in this field.

The monument is of national importance for its potential to enhance our knowledge of medieval settlement and defence. It retains significant archaeological potential, with a strong probability of the presence of associated archaeological features and deposits. The structures themselves may be expected to contain archaeological information concerning chronology and building techniques.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

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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