OS NGD Documentation
Welcome to OS NGD documentation! Here you can learn how to get started using OS NGD data via OS Select+Build and the OS NGD APIs.
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Welcome to OS NGD documentation! Here you can learn how to get started using OS NGD data via OS Select+Build and the OS NGD APIs.
Last updated
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This self-serve site is where you will find documentation to help you get started using OS NGD data via the download service of OS Select+Build and the two OS NGD APIs. Using the left-hand-side navigation menu, you can select and view pages and sections of interest, including:
Find out what the key benefits of the OS NGD are.
Download OS NGD sample data or visualise it online.
Learn about new data enhancements and service updates released for the OS NGD, the change log, improvements, planned future data enhancements and recent announcements.
Find out about OS NGD planned maintenance, any live service disruption, current data issues and resolved data issues.
OS NGD Fundamentals covers the core elements of OS NGD design, including available data formats and file naming, data schema versioning, access methods, data ordering and currency, attribute information for feature types, unique identifiers and coordinate reference systems.
Our getting started guides will help you access, use and style OS NGD data. You'll also find in-depth information on OS NGD design, and webinars, tutorials and case studies.
View frequently asked questions about OS NGD data and access methods (OS Select+Build and OS NGD APIs).
Learn about the OS NGD data structure and the data available for each theme, collection and feature type.
Access all of the code lists for the OS NGD.
The OS National Geographic Database (OS NGD) contains authoritative data that describes the geography of Great Britain. It delivers improved data structures, increased currency of data supply and enhanced metadata.
There are two access methods for OS NGD data:
(the download service)
OS Select+Build and the OS NGD APIs are available to Public Sector Geospatial Agreement (PSGA) Members and OS Partners through the . The OS NGD is accessible via both the .
The PSGA (Public Sector Geospatial Agreement) sets out how Ordnance Survey (OS) provides world-leading location data and expertise to the public sector across Britain. It supports the delivery of critical infrastructure and services, as well as working to help protect our environment.
, including the benefits of joining, instructions on how to access OS data, success stories, support, registration process information and instructions, and a PSGA Member finder tool to check if your organisation is already a member.