OS MasterMap Topography Layer

The OS MasterMap Topography Layer provides a detailed representation of the physical landscape of Great Britain. It includes detailed information on buildings, roads, rivers, and land use classification, as well as information on topographic features such as land parcels, and natural features. 


This product is updated every six weeks

Data access
  • Download and API
Data structure
  • Vector
Scale/resolution
1:1 250 to 1:10 000
Format
  • GeoPackage
  • GML
  • Vector Tiles

Try this product with free sample data

Download a small area of OS MasterMap Topography Layer.

What OS MasterMap Topography Layer provides you with

Mapping from the ground up

In a business of any kind, OS MasterMap Topography Layer gives you the confidence to make location-based decisions about assets, services, environmental risks, customers and operations.

Accurate referencing

Geo-tag your assets, with the topographic identifier (TOID) at the heart of OS MasterMap products. This makes it ideal for monitoring assets such as pipelines, pylons, bridges and warehouses.

Enhanced features

OS MasterMap Topography Layer includes enhanced features - Building Height Attribute to analyse the built environment and Sites Layer showing the main points of access to key sites.

Use cases

  • Frequently used to support planning decisions, the impact of development and to inform policy.  
  • Helps businesses understand terrain and building structures for smart meter deployment and suitable locations for solar panels.  
  • Supported by over 500 million objects, it enables land use classification, habitat mapping and geographical change over time.  

The OS MasterMap Topography Layer provides a detailed representation of the physical landscape of Great Britain. It includes detailed information on buildings, roads, rivers, and land use classification, as well as information on topographic features such as land parcels, and natural features. 


This product is updated every six weeks

Data access
  • Download and API
Data structure
  • Vector
Scale/resolution
1:1 250 to 1:10 000
Format
  • GeoPackage
  • GML
  • Vector Tiles