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OS MasterMap Sites Layer
Last updated
Last updated
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.
This product is updated every six months in April and October.
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.
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).
Identify where the most appropriate access points into a site are, enabling more detailed planning for emergency situations.
OS MasterMap Sites Layer routing points enable more efficient responses and more effective deployment of resources.
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.
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?’.
Access to this product is free for Public Sector Geospatial (Agreement) PSGA Members. Find out if you are a PSGA Member or find other ways to access OS MasterMap Sites Layer data by visiting the OS MasterMap Sites Layer product page on the OS website, which has links to all of the relevant resources.
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. Find out more about our OS API platform here to unlock 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 NGD Land Theme data and NGD Land Use Theme data more accessible and easier to use with databases and GIS software. Find out more about NGD data here to discover how to access OS NGD and what's available to users.
To access additional documentation and resources relating to this product, please refer to the following:
New users should start with the Overview to gain high-level insight into the product. The Getting Started Guide will help you to begin using product data in different software systems. The Technical Specification contains detailed technical insights.
This product is available to try out online using one of our three sets of sample data (Exeter, Newport and Inverness) through the OS MasterMap Product Viewer:
