Mapping data and geographic information from Ordnance Survey

Create and support innovative, exciting ideas and applications using Ordnance Survey mapping. With OS OpenData you can access a selection of the most detailed mapping datasets available for Great Britain.

If you have an idea that uses OS OpenData, why not enter the GeoVation Challenge for a chance to win a slice of £25 000 to make your idea a reality.

Now available - OS VectorMap^™ District - a new mid-scale vector and raster dataset (alpha version).

August 2010 - the latest version of Meridian^TM 2 is now available

August 2010 - the latest version of Code-Point Open is now available

View

Outline of Great Britain
Overview of Great Britain
MiniScale ®
1:250 000 Scale Colour Raster
OS Street View ®
Boundary-Line ™
OS VectorMap ™ District - New

Develop

Create amazing web applications
Enhance online projects
Put Ordnance Survey maps on your website

Our API uses JavaScript to make web pages more interactive, anyone can create an application by following simple code and tutorials.

Supply

Order OS OpenData on hard media or download direct to your PC, Mac or laptop (please note - you may need specialist GI data software to view and use this data...)

About

View, download and order OS OpenData or use OS OpenSpace® to enhance your own application.

You can also experiment with OS OpenData in Linked Data format.

Why not take part in the GeoVation Challenge?

If OS OpenData doesn't meet your needs, why not try:

The Ordnance Survey Map Shop for paper maps.
The Explore portal for routes, photos and blogs.
Ordnance Survey mapping for business or education.

Help

See our FAQ page to find answers to any questions you might have about OS OpenData, get more technical help with the map viewer or downloads.

Or you can email or call us on 0845 408 1895 (8.30 am-5.30 pm, Monday to Friday).

Keep in touch

Third-party trademark information.

Featured blogs:

Ordnance Survey Blog, Sir Tim Berners-Lee, Professor Nigel Shadbolt, Digital Engagement