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OS MasterMap Topography Layer

OS MasterMap® Topography Layer provides a highly detailed view of Great Britain's landscape including individual buildings, roads and areas of land. In total, it contains in excess of 400 million individual features.


  • Large scale - local

Data use

  • Detailed topography

Data format

  • Vector

You can use this product for example, to assess risk (financial or environmental) or to aid in the management of items that relate to geographical features such as pipelines.

Suggested uses:

  • Asset management
  • Land and property planning and transactions
  • Rural and environmental analysis and policy-making
  • Risk assessment
  • Environmental monitoring
  • Customer service centres

See also

Download samples of OS MasterMap, AddressBase, OS VectorMap Local, Land-Form Profile, Code-Point and popular backdrop maps. Discover Data licence applies.

Get a quote

Get a quote for OS MasterMap Topography Layer today. Give us your requirements online and we will come back to you with an estimate.

Ordnance Survey products - both data and paper maps - are available direct from us or from our partners. Find the easiest way for you to buy from us

Case studies

Lovell funds designs and builds new homes as well as refurbishes and repairs homes. It uses Promap, an online system offering property professionals instant, easy and reliable access to Ordnance Survey mapping.

FIND Maps has added value to OS MasterMap by reorganising the feature layers within the map, making it simpler to use for their customers.

How to use our data

We provide the most accurate and up-to-date geographic data in Great Britain.

Our data will need to be integrated in a Geographic Information System (GIS) to allow you to view, edit, overlay and manage different data formats and sources.

Our products, depending on their formats, will require different software. Some also require translation tools so please check with the system providers for the products you are interested in.

Have a look at our partner pages to learn more about solutions and services offered by our licensed partners.

OS MasterMap Topography Layer - learn more

OS MasterMap Topography Layer is the most intelligent mapping ever produced and is the tool for detailed analysis.

Building Height Attribute alpha release

For OS MasterMap® Topography Layer

The alpha release of OS MasterMap® Topography Layer – Building Height Attribute is now available for Topography Layer customers, providing a set of additional attributes for building heights that enhances and forms part of OS MasterMap Topography Layer. This first release comprises attribution for nearly 20 million buildings, covering approximately 8000km2 of the main towns and cities in Great Britain. The additional attribution can be used to make simple 3D visualisations of buildings and can assist a range of analytical applications across the both commercial and public sectors.

For more information and technical support, visit our OS MasterMap Topography Layer support page.

Need more information?

If you want more details, there are a few options for you. You can contact us directly and talk to one of our Sales Advisers, or you can visit our comprehensive product support area that has lots of useful information and details about our products.

Contact us today

For technical support, visit our OS MasterMap Topography Layer support page.

Try it now

We distribute free sample data under the terms of our Discover Data Licence to give an indication of what the data will be like.

You may be interested in this licence if you are a private individual, new customer, social entrepreneur, or represent a social group or start up company.

Download it now

To find out about ordering this product, please visit our pricing and ordering page.

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