OS VectorMap District

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Dataset Description:

The OS VectorMap District product is designed for use at 1:25,000 scale and is designed for use as backdrop maps in GIS for contextual purposes.  It shows more general building outlines, roads, railways, and watercourses.  The data is supplied in 20km x 20km tiles.

OS VectorMap District is available in the following formats:

  • Vector
  • Raster (colour, backdrop colour)


Dataset Thumbnail:


Dataset Specification:

Product Name

OS MasterMap Water Network Layer

Data Provider

Ordnance Survey


1:1,250 to 1:10,000


Great Britain (complete)

Data Structure

  • Vector (points, polylines, polygons and text)
  • Raster (colour, backdrop colour)


  • Vector: Esri Shapefile, Esri File GeoDatabase, MapInfo TAB, MID/MIF, Autodesk DWG, DXF, OGC KML, OGC GML, CSV (attribute data only)
  • Raster: GeoTIFF


Mid scale, regional-level applications


Thematic layers, including settlements, named places, roads, woodland and administrative boundaries (vector product)


OS OpenData Licence

Update Frequency

6 monthly (May and November)


Dataset Resources:

Product site
Support site
Simple Guide – Vector format (pdf)
Simple Guide – Raster format (pdf)
User Guide & Technical Specification (pdf)