Skip to content

Ordnance Survey XML schemas

XML schema files and DTDs which define the contents and structure of OS MasterMap XML files.

By downloading any XML schema in this repository, you agree to our terms and conditions.

The version 9 schemas incorporate:

  • Additional descriptive terms for OS MasterMap Topography Layer as well as a schema upgrade.
  • English is removed as the default language, recognising that in many cases the name of a place is ‘accepted’, and may actually be, for example, Welsh.
  • A change to the way chunkingPolicy and chunkSize are defined within the OSQueryResult.xsd, to satisfy contemporary XML validation.
  • Zipped archive of v9 schema files.
  • OS MasterMap v9 schema release notes.

Component files

OSAerialMetadata.xsd

OSComplexTypes.xsd

OSDNFFeatures.xsd

OSGeometryTopology.xsd

OSImageMetadata.xsd

OSMeasures.xsd

OSOrthoMetadata.xsd

OSQueryResult.xsd

OSSimpleTypes.xsd

OSIMIngestionMetadata.xsd

OSIMProductMetadata.xsd

OSIMSupplierMetadata.xsd

Deprecated schemas