Information Density: Ordnance Survey – Signal Evidence & AI Readability

[H1] Everything starts with location.
Explore and shape your world with Britain's most advanced mapping data.
[H2] We maintain the National Map - over 600 million features of Britain's landscape - enabling powerful, joined-up insights that support the nation every day.
[H2] Plan, navigate, and explore with OS Maps
Discover Britain's most loved maps.Shop OS Maps
[H2] Discover OS data, products and APIs
Powerful location data for every industry.Discover OS data
[H2] Learn. Discover. Experience.
[H3] OS Shop
Discover maps and guidebooks to help you enjoy getting outside in Great Britain.
[H3] Supporting the public sector
Learn how public sector organisations rely on world-leading location data.
[H3] Powering business
Transform your business with location data insights.
[H3] News and insights
The latest news, insights, blogs, and more.
[H3] Mapping services
Access mapping for property boundaries, planning applications, and election maps.
[H3] Education resources
Bring your classes to life with a range of geography and GIS resources from OS.

[H1] Contact us
Opening hours8am - 6pm Monday - FridayLive ChatClosedCallClosed
[H2] How can we help?
[H3] OS Maps app and web enquiries
Contact OS Maps for help with the OS Maps app and web, such as subscriptions and technical support
[H3] Shop enquiries
Help and support with the OS shop, including purchases, order support, returns, and trade enquiries
[H3] Errors or omissions with OS mapping
Report map errors or omissions with OS mapping, such as address, map features or public right of way errors
[H3] General mapping enquiries
Queries about general mapping information, including property reference numbers and historical maps
[H3] Business and government enquiries
Support in accessing OS data, licensing queries, help with using data and APIs, Partner, PSGA and commercial enquiries
[H3] Education enquiries
Teaching resource support or teacher training enquiries, plus higher education research queries
[H3] Careers
OS Careers enquiries, including any stage of the recruitment process, early careers and work experience interest
[H3] Press enquiry
For any ad-hoc media requests, use of map extracts, aerial imagery, data stories, and interview requests
[H3] Make a complaint
You can make a complaint if you're unhappy with the service that Ordnance Survey has provided
[H3] Compliment
If you have had a positive experience with Ordnance Survey we'd love to hear about it
[H3] Siaradwch â ni yn Gymraeg
Os hoffech siarad â ni yn Gymraeg, mae ein canolfan gyswllt Gymraeg yma i ateb eich ymholiadau
[H3] Emergency contact for the resilience community (category 1 and 2 responders)
[H3] Mapping for emergencies
Our free mapping for emergencies (MfE) service supports category 1 and 2 responders and is available 24 hours a day

[H1] Customer support and resources
Access resources for address and property enquiries, help using OS data products, and support for your orders and account
[H2] How can we help?
Use the links below to quickly access popular resources.Planning application mapsLand registry servicesLand and property boundaries informationOS Maps login queryOS Maps help centreShop enquiryView more
[H2] Data product support
Access support and resources to help get you started using OS data.
[H3] OS Data Hub support
Manage your OS Data Hub account and read guidance to help you start using OS data for your project.
[H3] Premium data support
Access technical support for OS premium data products such as AddressBase, OS MasterMap and more.
[H3] Open data support
Read technical specifications, getting started guides and supporting information for our OpenData products.
[H3] API tutorials
Follow our step-by-step guides to learn how to develop solutions with our APIs.
[H3] Data toolkits
Access tools such as the coordinate transformation tool, XML file resources and GeoDataViz toolkit.
[H3] Product refresh dates
Visit docs.os.uk to get update frequencies for OS digital mapping products, including AddressBase and OS Mastermap Topography Layer.
[H2] Account support
Access links to support for your OS Maps account or your Partner Portal account. If you're a PSGA member and need Principal Contact information, contact us today.
[H3] OS Maps account and subscription support
Browse frequently asked questions and answers about your OS Maps account and subscription.
[H3] Partner account support
This links to a secure area (Partner Portal) which requires a login. Manage your account or find your account manager contact details.
[H3] PSGA Principal Contact enquiry
If your organisation is already a member of the Public Sector Geospatial Agreement (PSGA) find out who your Principal Contact is.
[H2] Orders support
Find help for your OS shop order, learn the different ways you can pay OS, and access support for OS Orders for commercial users.
[H3] OS Shop order support
Find answers to questions we're frequently asked about ordering through the OS Shop.
[H3] How to pay OS
How to pay us online – by debit card, credit card, BACS payment, or cheque.
[H3] OS Orders support and user guide (PDF)
OS Orders user guide, troubleshooting and answers to frequently asked questions.
[H2] Support for our customers
Find the support you need, from mapping resources for the general public to Public Sector Geospatial Agreement (PSGA) information and commercial enquiries.
[H3] Enquiries for general public
Access mapping information for a range of topics such as property boundaries, planning application maps, election maps, and more.
[H3] Government and public sector support
From getting started with OS data and services through to advanced specialist geospatial analysis and visualisation.
[H3] OS Partner support
Existing OS Partners can access a range of support including licensing guidance, product support, account help and much more.
[H3] International team contacts
Learn how the international geospatial team can help you use geospatial data to improve your nation.
[H3] Developer support
Developer support resources are available to all users, providing guidance managing your OS data account and your mapping projects.
[H2] Can’t find what you need?
Contact us

[H1] Information enquiries for the general public
Ordnance Survey (OS) provides mapping information and services
[IMG: Two people browsing a mobile phone]
[H2] Make the most of mapping
With access to our free data products, online content, and education resources, we’re helping a wide range of users and industries to make the most of mapping.
Our location data:
helps our customers to enjoy the outdoors
supports government policies
and enables businesses to unlock efficiency and insight.
[H2] Mapping services
Access mapping information for a range of topics such as property boundaries, planning application maps, election maps, and more
[H3] Land ownership and property boundaries
Access information on legal boundaries and how to purchase large-scale maps used for planning permission.
[H3] Planning application maps
Information and guidance on how to obtain maps for planning permission and submission to HM Land Registry.
[H3] Election maps
Use election maps for Great Britain and Northern Ireland to explore the electoral geography of the UK.
[H3] Land registry services
Find out about the different services and licences offered by HM Land Registry and Registers of Scotland.
[H3] Unique property reference numbers
Information and guidance on how to use and access unique property reference numbers (UPRNs).
[H3] Field parcel numbers information
Find out everything you need to know about field parcel numbers and how they are shown on OS maps.
[H3] What Ordnance Survey Field Surveyors do
Discover what OS Field Surveyors do, from mapping urban and rural landscapes with precision to updating property details using advanced GNSS technology.
[H3] Historical map archives
You can get some historical maps from our map shop, and a whole range of historical products from our PartnersView historical map stockists
[H2] Contact us about
[H3] A mapping error
[H3] A mapping information enquiry
[H3] A planning application enquiry
[H3] OS Maps or shop enquiry
[H2] Mapping product support
Search for free data products and view technical support to use OS data effectively
[IMG: Open data]
[H3] OpenData (free) products
Ordnance Survey OpenData products can be downloaded for free with no registration required.Discover our free-to-use products
[IMG: Product support]
[H3] Product support
Access useful product and technical support to use OS data products successfully.OS data product support
[H2] Education resources
View our broad range of resources available for schools and teachers
[H3] Education
Bring your geography classes to life with a range of geography and GIS resources from OS.Access resources
[IMG: Mapzone]
[H3] Mapzone
Mapzone brings geography and mapping to life and is a great resource to use as a teacher.Visit Mapzone
[H3] Digimap for schools
Discover Digimap for Schools; online geography learning to help your students explore Great Britain.Explore resources
[H2] Maps and shop
[IMG: Individual by a river holding a phone using OS Maps]
[H3] OS Maps
Discover millions of routes to walk, run and cycle; or plot your own with OS mapping and route planner tools on web and app. Try it for free.OS Maps
[IMG: OS Maps]
[H3] Shop
Discover a wide variety of maps, books and outdoor gear! Choose from navigation maps to wall maps or personalised maps. From GPS watches to tents and sleeping bags, visit the OS shop for all your outdoor needs.Shop
[H2] Can't find what you need?
Contact us directly to speak to our friendly customer service teamContact us