id: ie-newtown-blackrock-byrn
name: Castle Byrn
tradition: european_medieval
location:
  country: IE
  locality: Newtown, Blackrock
  county: Dublin
  lat: 53.2988
  lon: -6.17005
definitions_met:
  fortified_residence:
    verdict: 'yes'
    assessment: register-derived
    basis: 'The Archaeological Survey of Ireland records SMR DU023-008---- as MONUMENT_CLASS:
      Castle - unclassified, within the Castle class this band maps onto. Transcribed from
      the register''s own typology and NOT assessed against this band''s criterion. Treat
      as provisional.'
register_entries:
- register: ie-smr
  ref: DU023-008----
  designation: Castle - unclassified
  url: https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CDU023-008----
first_seen: '2026-07-21'
last_updated: '2026-07-21'
confidence: low
sources:
- url: https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CDU023-008----
  title: Archaeological Survey of Ireland - Sites and Monuments Record
  publisher: National Monuments Service
  date: '2026-07-21'
  note: Register entry; the sole source for this record.
signals:
- sig-20260721-iesmr-du023-008
notes: 'Imported in bulk from the Irish Sites and Monuments Record. One register speaks and
  nothing corroborates it, hence confidence: low. Only fortified_residence carries a verdict;
  every other band is OMITTED rather than set to no. The register''s own finer class is kept
  on the register_entry, so the strict Anglo-Norman reading stays recoverable from the data
  without re-querying the service.'