OSNI Open Data: 1:10,000 Scale Coverage Grid for Northern Ireland

1058 tiles compose the National Grid Reference System for Northern Ireland at a 1:10,000 scale. The grid, referenced to the Irish Grid, is published by the Government Digital Service under an Open Government Licence. Each tile covers an area of 4.8 km by 3.2 km.

Use Cases

• Aligning and referencing other geospatial datasets based on the standardized 10k grid system.
• Downloading Digital Terrain Model (DTM) data for Northern Ireland using the grid as a spatial index.
• Serving Mid Scale Raster map tiles for web or desktop mapping applications via the provided WMS service.
• Creating custom map overlays or analysis boundaries in GIS software using the provided vector formats (Shapefile, GeoJSON, KML).

Strengths

• Provides a standardized reference system composed of 1058 defined tiles covering all of Northern Ireland.
• Each tile has a precise spatial extent of 4.8 km x 3.2 km, enabling consistent data tiling.
• Available in multiple interoperable geospatial formats, including ESRI Shapefile, GeoJSON, KML, and WMS.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Row count is unknown, which may limit suitability assessment for some analytical tasks.

Provenance

Source

Government Digital Service

Collection Method

null

Time Range

null

Freshness

null

Geography

Northern Ireland