AddressBase

AddressBase matches 29 million Royal Mail postal address to unique property reference numbers (UPRN), bringing a new dimension to the matched records.

  • Addressing and location
  • Download
  • Public Sector Plan
  • Premium Plan

This product is updated every six weeks

Representation of data provided
Representation of data provided
© Crown copyright and database rights. Ordnance Survey 2025

What AddressBase provides you with

Precision identification

Identify a property and locate it on a map with precision – using the X and Y coordinates we’ve assigned to the Royal Mail Postcode Address File (PAF)® data.

Understand the nation with PAF

Every address geo data record provides Royal Mail address information from PAF, the Unique Delivery Point Reference Number (UDPRN) and X and Y coordinates.

Track customer data

Using the basic classifications in AddressBase you can quickly filter between residential and commercial addresses, which is ideal for marketing purposes.

Try this product with free sample data

Give it a try

Download a small area of AddressBase.

Or try out the real thing by applying for a Data Exploration Licence

Need more technical information?

Read product guides, technical specification and further documents and support.

AddressBase

Technical information

© Crown copyright and database rights. Ordnance Survey 2025

Specifications

Use cases

Reduce marketing costs

Our basic classifications – residential or commercial – will reduce the costs and increase the effectiveness of your direct marketing.

Confidence in data

In customer services, the need for accuracy is paramount. Have confidence in your front-line staff’s ability to look up addresses on a database of millions, quickly and efficiently

Access
  • Download
Data theme
  • Address
Data structure
Vector - Points
Coverage
Great Britain
Scale
1:1250 to 1:10,000
Format
  • CSV
  • GML 3.2.1
Ordering area
  • All of Great Britain or customisable area (5km2 tiles or user defined polygon)
OS Data Hub plan
  • Public Sector Plan
  • Premium Plan

Documents and Support

Technical documentation

  • AddressBase technical documentation
    Visit docs.os.uk to access all technical documentation for this product, including getting started guide, technical specification, header files, epoch dates and release notes.
    link

AddressBase

Get this product

What you get

Key features
  • Precision identification
  • Understand the nation with PAF
  • Track customer data
Category
Addressing and location
Access
  • Download
Data structure
Vector - Points
Update frequency
Every six weeks

Try this product with free sample data

Give it a try

Download a small area of AddressBase.

Or try out the real thing by applying for a Data Exploration Licence

How to access

Businesses

Ordnance Survey's commercial network of Partners can help you with bespoke location solutions, derived from OS data

Ranging from global giants to single entrepreneurs, our Partners all use our location data to create innovative products and services. Their expertise ensures customers can benefit from using our data for a range of services. Find a partner for addressing and location mapping requirements.

Find a Partner

Developers

Ready to get started with our data and APIs?

Choose your plan and create your account. Take the next step by signing up to the OS Data Hub and create your first project today.

Sign up to the OS Data Hub

Our Partners

Download Premium data from the OS Data Hub

If you're an OS Licensed Partner you can use the OS Data Hub to access OS data products and manage your account all in one place.

Read guidance for Partners

Government and public sector

OS Data Hub for PSGA members

If your organisation is a member of the Public Sector Geospatial Agreement, access the OS Data Hub to access our products.

Go to the OS Data Hub

Get help

Further support

For further help about how our data can transform your organisation, contact us today

Contact us