id: sig-20260722-report-mm153
site_id: gb-caerwent-dinham
attribute: designation_report
value: 'Reference Number

  MM153

  Name

  Dinham Castle

  Date of Designation

  06/03/1958

  Status

  Designated

  Unitary Authority

  Monmouthshire

  Community

  Caerwent

  Easting

  348032

  Northing

  192335

  Broad Class

  Defence

  Site Type

  Castle

  Period

  Medieval

  The monument consists of the remains of a castle, dating to the medieval period. The castle
  is situated in woodland on the E side of a small valley with a steep drop to the valley
  bottom on the W and S sides. On the N side, below the castle, is a wide shallow ditch 0.5m
  deep, which runs NW down the slope. On parts of the inners side low footings of a wall are
  visible. The castle itself is situated on the top of the slope to the W and S, 3m above
  the ditch. At the N end of the site are the remains of a rectangular stone-built building
  measuring 14m N/S by 7m, containing two rooms. To the S of the rectangular building is a
  T-shaped wall standing up to 1.8m high. This is rubble-built and has been spread. On the
  S side of the wall is a level platform, and on the S side of the platform are the remains
  of a second rectangular structure. On the E side of the site are faint traces of a bank.
  The history of the site is obscure, although it is known that there was a church on this
  location in the 12th century.

  The monument is of national importance for its potential to enhance our knowledge of medieval
  defensive practices. The monument is well-preserved and an important relic of the medieval
  landscape. It retains significant archaeological potential, with a strong probability of
  the presence of both structural evidence and intact associated deposits.

  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=574
source_title: Scheduled Monument Full Report — Dinham Castle
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.