Historic England

Historic England — National Heritage List for England

Official register of listed buildings and other designated heritage assets in England, served via ArcGIS FeatureServer.

Data Model

• ListEntry — Unique integer reference number from the NHLE (e.g. 1000045).
• Name — Name of the building or heritage asset (e.g. "BUCKINGHAM PALACE").
• Grade — Listed building grade in descending order of significance: I, II*, II.
• ListDate — Date the building was added to the statutory list (Unix timestamp in ms).
• AmendDate — Date of last amendment to the listing.
• NGR — Ordnance Survey National Grid Reference (e.g. "TQ 29009 79672").
• Easting/Northing — OS coordinates (British National Grid, EPSG:27700).
• hyperlink — Link to the full listing entry on historicengland.org.uk.

Grade Distribution

• Grade I — ~2% of listed buildings. Exceptional interest.
• Grade II* — ~5.8%. Particularly important, more than special interest.
• Grade II — ~91.7%. Nationally important and of special interest.

Gotchas

• Coordinate system: Native data uses British National Grid (EPSG:27700), not WGS84 lat/lon. Use outSR=4326 for lat/lon output.
• Date fields: ArcGIS returns dates as Unix timestamps in milliseconds.
• Case sensitivity: Name searches are case-insensitive when using upper(Name) LIKE '%CASTLE%'.
• Result limit: Default max 2000 features per query. Use resultRecordCount to control.
• Geometry: Point geometry (centre point of asset, not boundary polygon).