id: sig-20260722-report-cd092
site_id: gb-dyffryn-arth-allt-craig-arth
attribute: designation_report
value: 'Reference Number

  CD092

  Name

  Castell Allt Craig-Arth

  Date of Designation

  16/09/1949

  Status

  Designated

  Unitary Authority

  Ceredigion

  Community

  Dyffryn Arth

  Easting

  249481

  Northing

  262373

  Broad Class

  Defence

  Site Type

  Castle

  Period

  Medieval

  The monument comprises the remains of a motte and bailey castle, a military stronghold built
  during the medieval period.  A motte and bailey castle comprises a large conical or pyramidal
  mound of soil or stone (the motte) surrounded by, or adjacent to, one or more embanked enclosures
  (the bailey).  Both may be surrounded by wet or dry ditches and could be further strengthened
  with palisades, revetments, and/or a tower on top of the motte.  Castell Allt Craig-Arth
  is defended on three sides by steep slopes to streams and on the east by a double bank and
  ditch.  The inner bank is c.6.5m above the ditch and c.3.5m above the interior.  The motte
  appears to be partly natural.  It is c.8m high and oval in shape, being c.11m across at
  its greatest diameter.  There is a second mound to the west.  The entrance through the two
  banks on the east side is straight, at the northern end.  There are slight banks at the
  west end and there was possibly a second entrance there.  The monument is situated within
  a wood.

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

  The scheduled area comprises the remains described and areas around them within which related
  evidence may be expected to survive.'
source_url: http://cadwpublic-api.azurewebsites.net/reports/sam/FullReport?lang=en&id=758
source_title: Scheduled Monument Full Report — Castell Allt Craig-Arth
publisher: Cadw
observed_date: '2026-07-22'
collected_by: scripts/build_assessment_batch.py
confidence: high
notes: The designation text. Assess the six bands against THIS evidence only; omit any band
  it does not speak to.