OS MasterMap Sites Layer
Here you will find all documentation for the OS MasterMap Sites Layer product.
OS MasterMap Sites Layer provides a nationally maintained view of the detailed extents of important locations such as airports, schools, hospitals, utility and infrastructure sites, and more. The points of access and routing points, to navigate in and out of the sites, are also provided.
OS MasterMap Sites Layer shows what people see in the real world, where the common view of something (such as a school) is not the address, the main building or the playing fields, but is the site as a whole.
Accurate risk analysis
OS MasterMap Sites Layer gives you an understanding of the wider geographic perspective, such as how assets interact with specific types of sites (for example, schools).
Find relevant access points
Identify where the most appropriate access points into a site are, enabling more detailed planning for emergency situations.
Enhanced analytics
OS MasterMap Sites Layer routing points enable more efficient responses and more effective deployment of resources.
Seven different themes
The OS MasterMap Sites Layer groups features into seven themes: Air Transport, Education, Medical Care, Rail Transport, Road Transport, Water Transport, and Utility or Industrial. Each feature is available as three feature types: Functional Site, Access Point and Routing Point.
Solve challenges
OS MasterMap Sites Layer can help you answer questions like ‘How close is this school to something?’ or ‘What would be affected in the event of an emergency?’.
OS MasterMap Sites Layer can be used to:
Improve risk management of key assets
Improve risk planning
Create more intelligent risk models
Identify areas where an insurer is exposed to accumulated risk or risk to their client’s assets
Identify and manage public assets holistically, breaking down the administrative or ownership barriers to achieve more efficient use of publicly owned assets and to provide better services to citizens
Understand the extent and function of a site and the contribution it may make to the social, economic or environmental health of an area
Respond more efficiently or deploy resources more effectively to emergencies
Identify the most appropriate access point into a site, and the best route to navigate to the site
Access: Download
Data theme: Land Use
Data structure: Vector – Polygons
Coverage: Great Britain
Scale: 1:1 250 to 1:10 000
Format: GeoPackage, vector tiles, GML 3.2.1
Ordering area: All of Great Britain or customisable area (5km² tiles)
Publication months: April, October
We recommend you read the following guides:
How to get this product
Access to this product is free for PSGA (Public Sector Geospatial Agreement) Members. You can check if your organisation is a member of the PSGA on the OS website.
The OS MasterMap Sites Layer product page on the OS website has advice on how to get the product for businesses, developers, OS Partners and PSGA Members (i.e. government and the public sector).
Sample data
Visualise OS MasterMap Sites Layer sample data online
This product is available to try out free online using one of our three sets of sample data (Exeter, Newport and Inverness) through the OS MasterMap Product Viewer:
Other ways to access this data
OS MasterMap Sites Layer data is available through our OS Features API, providing location-based insights combining topography data with buildings, transport, and water layer data to create finely detailed datasets with a high degree of accuracy. Visit the OS API docs site to unlock programmatic access to rich geospatial data and integrate OS data and services into your applications.
Access to OS MasterMap Sites Layer data is also available through the OS NGD Land Theme and OS NGD Land Use Theme, providing data that is interoperable with other OS NGD themes, improved data structures, and a data schema designed to be simple to use and interrogate. Users may find OS NGD Land Theme data and OS NGD Land Use Theme data more accessible and easier to use with databases and GIS software. Visit the OS NGD docs site to discover how to access the OS NGD and learn what's available to users.
What's next?
To access additional documentation and resources relating to this product, please refer to the following:
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