Explore documentation and guides for OS Premium and OpenData Download products, such as AddressBase Premium, OS MasterMap Topography Layer, Boundary-Line and OS Open Zoomstack.
On the left-hand-side menu, we've grouped documentation first by portfolio, then alphabetically by product. Under each product's landing page, you'll usually find the following product-specific documents:
Release Notes (available for most products)
An Overview
A Getting Started Guide (available for most products)
A Technical Specification
Downloads (contains any additional files to download for a product, such as classification schemes and CSV header files, and links to product stylesheets and XML schemas held on other OS sites, if available for a product)
Known Data Issues
Download data product portfolios
The Download data products are grouped by portfolio:
Types of Download data products
There are two types of Download data product: OS Premium and OS OpenData:
When we refer to Premium products we mean paid-for datasets – whether they’re paid for by businesses, purchased through an , or accessed free at the point of use under the .
The OS Premium Download data products are available to download in a range of formats, with a variety of ordering options, through the on our .
Our Premium Download data products work in a range of software, including ESRI ArcGIS, QGIS, Mapbox, Cadcorp SIS, MapInfo, Tableau, Kepler.gl and many more.
OS OpenData Download products are free to use by anyone for any purpose – including for services from which you make a profit.
The OS OpenData Download products are available to download in a variety of formats, with a variety of ordering options, through the .
Explore mapping data relating to addresses, Unique Property Reference Numbers (UPRNs), named features and places. Discover address details, postcodes, identifiers and features.
Areas and Zones
Explore mapping data designed to provide information about areas used for administration and analysis. Discover postcodes, boundaries and built up areas.
Buildings and Infrastructure
Explore mapping data designed to provide information about the built environment. Discover building and structure features, identifiers and topography layers.
Land and Terrain
Explore mapping data designed to show land cover, land use and elevation. Discover land and built environment features, greenspace and topography layers.
Maps and Imagery
Explore mapping data designed to provide visual context, allowing you to perform simple analysis. Discover raster and vector maps, imagery and topography layers.
Transport Network
Explore mapping data designed to provide information about roads, paths, trams, ferries and railways. Discover transport networks, features and identifiers.
Water
Explore mapping data designed to show water bodies, tidelines and river networks. Discover water features, identifiers and topography layers.
📣 Product Announcements
A page detailing any newsworthy announcements for the OS Download data products.
🔍 Sample Data
Download product sample data from the or visualise it online using the .
📃 Terms and Conditions
The terms and conditions on which the OS Premium data and OS OpenData Download products are made available.
📅 Product Refresh Dates
The update frequencies of the Premium and OpenData Download products and the calendar months in which these updates are published. You'll also find tables listing the upcoming and past publication and data cut / extraction dates for AddressBase and OS MasterMap Topography Layer.
OS Product Roadmap
The roadmap has details of new Download product releases (for Premium and OpenData products) and upcoming OS National Geographic Database (OS NGD) releases, plus dates for planned product withdrawals as they reach their End of Life stage.
🗺️ PSGA Product Summary
A page listing all of the OS data products available to Public Sector Geospatial Agreement (PSGA) Members on an unlimited basis across the OS National Geographic Database (OS NGD), APIs and Download data products.
