> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/resources/psga-product-summary.md). # PSGA Product Summary This page provides an overview of all the OS data products available to PSGA Members on an unlimited basis across the OS NGD, downloadable products and APIs. {% hint style="info" %} The Public Sector Geospatial Agreement (PSGA) 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.  [Find out more about the PSGA by visiting the OS website](https://www.ordnancesurvey.co.uk/customers/public-sector/public-sector-geospatial-agreement), 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. {% endhint %} A[ plain text version of the PSGA product summary](/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/resources/psga-product-summary-table.md) is also available ## OS National Geographic Database The **OS National Geographic Database (OS NGD)** is the latest generation of authoritative geospatial data to describe the geography of Great Britain – delivering increased currency, improved data structures and enhanced metadata to allow users to make the most of OS data.


OS National Geographic Database (OS NGD)	Authoritative data describing the geography of Great Britain by bringing together multiple data collections and themes as a single data source.	OS_NGD_cover.png	osngd
OS NGD API – Features	An API providing access to filtered OS NGD features data from the OS NGD.	NGD_API_Features.png	Broken link
OS NGD API – Tiles	An API providing access to vector tile services powered by the OS NGD, allowing you to create a detailed and customisable basemap based on the latest OGC API – Tiles standard.	NGD_API_Tiles.avif	Broken link

## APIs **Ordnance Survey** **APIs** give programmatic access to OS data and services, providing a powerful gateway to rich geospatial data that empowers organisations to integrate mapping data into their applications.


OS Maps API	Access detailed pre-rendered raster tiles in multiple styles to make intelligent location-based decisions within your applications.	OS_MAPS_API_cover.avif	OS Maps API
OS Features API	Access to OS data filtered by feature layers to apply only the data you need as and when you need it.	OS_Features_API_Cover.png	OS Features API
OS Vector Tile API	Access detailed OS MasterMap data as a vector tile service, providing a customisable basemap optimised for use with most web mapping libraries.	OS_Vector_Tile_API_Cover.avif	OS Vector Tile API
OS Linked Identifiers API	Access data defining valuable links and relationships between properties, streets and OS MasterMap identifiers.	Linked_identifiers_Cover.avif	OS Linked Identifiers API
OS Places API	Direct access to rich sets of addressing data providing a detailed view of an address and its lifecycle.	OS_Places_API_Cover.avif	OS Places API
OS Names API	A geographic directory that supports the discovery, identification and visualisation of identifiable places within OS data.	OS_Names_API_Cover.avif	OS Names API
OS Downloads API	Provides automated access to OS data products and packages for integration with existing systems and software.		OS Downloads API

## Download data products OS produces two types of **Download data product**: Premium and OpenData: * Premium products refer to paid-for datasets – whether they’re paid for by businesses, purchased through an [OS Partner](https://www.ordnancesurvey.co.uk/customers/os-channel-partners), or accessed free at the point of use under the [PSGA](https://www.ordnancesurvey.co.uk/customers/public-sector/public-sector-geospatial-agreement). * OpenData products are free to use by anyone for any purpose – including for services from which you make a profit. Download data products are grouped by portfolio: [Addressing and location](#addressing-and-location), [Topography](#topography), [Contextual or derived](#contextual-or-derived), [Identifiers](#identifiers), [Networks](#networks), and [Height](#height). ### Addressing and location Addressing and location products provide authoritative and accurate address, property and land data, with comprehensive location-based directories for users to draw from.


AddressBase	Access to a current view of all Royal Mail Postcode Address File (PAF) addresses with additional location-based data featuring residential or commercial classifications.	addressbase.xeaf23c9e.webp	https://docs.os.uk/os-downloads/addressing-and-location/addressbase
AddressBase Core	Access to over 33 million addresses sourced from Local Authority data and supplied with a Unique Property Reference Number (UPRN) and property-level coordinates.	ABCore_Cover.webp	AddressBase Core
AddressBase Plus	Access to over 37 million postal and non-postal addresses sourced from Local Authorities, Ordnance Survey and Royal Mail for England, Wales and Scotland.	AddressBase-Plus-1.png	AddressBase Plus
AddressBase Premium	Provides the most detailed view available of an address and its lifecycle from creation through to retirement in England, Wales and Scotland.	AddressBase-Premium-3.png	AddressBase Premium
Boundary-Line	An open dataset that represents every administrative and electoral boundary and their names for England, Scotland and Wales.	Boundary-Line-2.png	Boundary-Line
Code-Point	A postcode locator that locates over 1.7 million postcode units in Great Britain and Northern Ireland – providing information about delivery points, positional quality, type and district codes amongst other data points.	Code-Point-4.png	Code-Point
Code-Point Open	An open dataset of all 1.7 million postcode units in Great Britain and Northern Ireland.	Codepoint-Open-5.png	Code-Point Open
Code-Point with Polygons	A dataset providing the notional extent of every postcode in Great Britain for visualisation and analysis at a national scale.	CodePoint_Polygons_Cover.webp	Code-Point with Polygons
OS Emergency Services Gazetteer (OS ESG)	Provides a national, consistent, and maintained view of the locations of names, places and objects in Great Britain to support the Emergency Services.	ESGCoverImage.avif	OS Emergency Services Gazetteer
OS Open Names	A comprehensive open dataset of place names, road numbers and postcodes for Great Britain.	OS_OpenNames_Cover.webp	OS Open Names

### Topography Topography products allow users to visualise geographic data to make clearer location-based decisions about assets, risks and services.


OS MasterMap Topography Layer – Building Height Attribute	An enhancement to OS MasterMap Topography Layer that provides building height properties to manage assets, plan works and visualise urban density.	Topograhy_Layer_BHA_Cover.png	OS MasterMap Topography Layer – Building Height Attribute
OS MasterMap Greenspace Layer	A detailed dataset of public and private greenspaces within urban areas for Great Britain.	MasterMap-Greenspace-5.png	OS MasterMap Greenspace Layer
OS MasterMap Sites Layer	A dataset containing the detailed extents of important locations such as airports, schools, hospitals, utility and infrastructure sites, and more.	Sites_layer_Cover.png	OS MasterMap Sites Layer
OS MasterMap Topography Layer	A detailed and accurate view of the landscape of Great Britain, representing both the manmade and natural environment, with over 500 million real-world objects.	MasterMap-Topography-1.png	https://docs.os.uk/os-downloads/topography/os-mastermap-topography-layer
OS Open Greenspace	An open dataset depicting the location, access and extent of spaces, such as parks and sports facilities likely to be accessible to the public.	Open-Greenspace-5.png	OS Open Greenspace

### Contextual or derived Contextual or derived mapping products make OS data more accessible, customisable and easier to use for use for web, mobile and desktop applications.


1:25 000 Scale Colour Raster	A digital alternative to Ordnance Survey's OS Explorer paper map series for Great Britain, available in 10km square tiles.	1_25k_Colour_Raster_Cover.png	1:25 000 Scale Colour Raster
1:50 000 Scale Colour Raster	A digital alternative to Ordnance Survey's OS Landranger paper map series for Great Britain, available in 20km square tiles.	1_50K_Colour_Raster_Cover.avif	1:50 000 Scale Colour Raster
1:250 000 Scale Colour Raster	An open small-scale, digital, raster mapping product giving a regional view, similar in content and appearance to a typical road atlas.	250k-RasterWebSize.png	https://docs.os.uk/os-downloads/contextual-or-derived-mapping/1-250-000-scale-colour-raster
GB Overview Maps	Two overview maps of Great Britain at 1:5 000 000 scale for commercial, personal or educational use. An OpenData product.	GB-Overview-1.png	GB Overview Maps
MiniScale	A small-scale digital map of Great Britain designed for customers requiring high-quality mapping for documents and publications. An OpenData product.	MiniScale-1.png	MiniScale
OS Open Zoomstack	An open vector basemap showing coverage of Great Britain from a national level, down to street level detail.	Open-Zoomstack-Road.png	OS Open Zoomstack
OS OpenMap – Local	A dataset of detailed, street-level mapping of Great Britain, providing one of the most detailed generalised open mapping products available.	OpenMap-Local-4.png	OS OpenMap – Local
OS VectorMap District A open simple vector dataset, designed for creating graphical mapping with a nominal scale of 1:25 000 covering the whole of Great Britain.		VectorMap-District-2.png	https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-district
OS VectorMap Local A highly detailed, customisable, street-level map, showing fences, building outlines, paths and street names.		VectorMap-Local-1.png	https://docs.os.uk/os-downloads/contextual-or-derived-mapping/os-vectormap-local

### Identifiers Identifier products provide a dataset of unique identifiers for a wide range of landscapes and built environment features for projects that require greater data connectivity.


OS Open Linked Identifiers	An open dataset of cross-referenced identifiers detailing relationships between Unique Property Reference Numbers (UPRNs), Unique Street Reference Numbers (USRNs) and Topographic Identifiers (TOIDs).	LinkedIDs_banner_small.png	OS Open Linked Identifiers
OS Open TOID	An open dataset of unique identifiers for landscape and built environment features with a generalised location extracted from OS MasterMap products.	open-toid-data.xdc094ecd (1).webp	OS Open TOID
OS Open UPRN	An open dataset enabling linking, sharing and visualisation of data related to Unique Property Reference Numbers (UPRNs).	open_uprn_residential.png	https://docs.os.uk/os-downloads/identifiers/os-open-uprn
OS Open USRN	An open dataset containing all Unique Street Reference Numbers (USRNs) from OS MasterMap Highways Network.	open-usrn-datahub-1-large.png	https://docs.os.uk/os-downloads/identifiers/os-open-usrn

### Networks Network products provide detailed and accurate network datasets for highways, roads, paths and waterways.


OS Detailed Path Network	A fully connected, heighted path network covering Britain’s National Parks to allow users to create off-road navigation websites and apps.	Detailed-Path-Network-3.png	OS Detailed Path Network
OS MasterMap Highways Network – Roads	A navigable road network dataset with detailed information about planned roads and roads under construction.	Highways-Network-1.png	OS MasterMap Highways Network – Roads
OS MasterMap Highways Network – Routing and Asset Management Information (RAMI)	Routing data from Ordnance Survey's large-scale road and path data integrated with data from the National Street Gazetteer (NSG), the Trunk Road Street Gazetteer (TRSG) and the Scottish Street Gazetteer (SSG).	Highways-Network-RAMI-1.png	OS MasterMap Highways Network – Routing and Asset Management Information
OS MasterMap Highways Network – Paths	A path network dataset for Great Britain showing who is responsible for all the footpaths through towns and cities in Great Britain.	Highways-Network-Paths-1.png	OS MasterMap Highways Network – Paths
OS MasterMap Water Network Layer	A three-dimensional attributed digital representation of Great Britain's watercourses that provides a range of information about the watercourses depicted.	MasterMap-Water-Network-1.png	OS MasterMap Water Network Layer
OS Multi-Modal Routing Network (OS MRN)	A fully connected routable network containing  multi-modal connectivity between Road, Rail, Path, and Ferry networks for the routing of people and goods.	MRN_Cover.png	OS Multi-modal Routing Network
OS Open Rivers	An open dataset providing a high-level view of over 144 000km of water bodies and watercourses in Great Britain.	Open-Rivers-6.png	OS Open Rivers
OS Open Roads	An open dataset providing a high-level digital representation of Great Britain's road network.	Open-Roads-5.png	OS Open Roads

### Height Height products assist users in evaluating the landscapes of Great Britain with digital terrain models (DTMs).


OS Terrain 50	An open height dataset of contours with spot heights, breaklines, coastline, lakes, ridges and formlines for Great Britain.		Terrain-50-1.png	OS Terrain 50

--- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.os.uk/os-downloads/~/changes/AJZwzCsyrD9hiTbOxIbO/resources/psga-product-summary.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.

OS National Geographic Database (OS NGD)

OS NGD API – Features

OS NGD API – Tiles

OS Maps API

OS Features API

OS Vector Tile API

OS Linked Identifiers API

OS Places API

OS Names API

OS Downloads API

AddressBase

AddressBase Core

AddressBase Plus

AddressBase Premium

Boundary-Line

Code-Point

Code-Point Open

Code-Point with Polygons

OS Emergency Services Gazetteer (OS ESG)

OS Open Names

OS MasterMap Topography Layer – Building Height Attribute

OS MasterMap Greenspace Layer

OS MasterMap Sites Layer

OS MasterMap Topography Layer

OS Open Greenspace

1:25 000 Scale Colour Raster

1:50 000 Scale Colour Raster

1:250 000 Scale Colour Raster

GB Overview Maps

MiniScale

OS Open Zoomstack

OS OpenMap – Local

OS VectorMap District

OS VectorMap Local

OS Open Linked Identifiers

OS Open TOID

OS Open UPRN

OS Open USRN

OS Detailed Path Network

OS MasterMap Highways Network – Roads

OS MasterMap Highways Network – Routing and Asset Management Information (RAMI)

OS MasterMap Highways Network – Paths

OS MasterMap Water Network Layer

OS Multi-Modal Routing Network (OS MRN)

OS Open Rivers

OS Open Roads

OS Terrain 50