AddressBase

Open data API in a single place

Provided by Ordnance Survey

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Dataset information

Catalog

Ordnance Survey catalog

Country of origin

United Kingdom

Updated

Created

Available languages

English

Keywords

Residential Addresses, Ordnance Survey, Local Government Group, Postcodes, UDPRN, classifications, Commercial Addresses, Local Government Information House, UPRN, PAF, OS, GeoPlace

Datasource

Official portal for European data link

Quality scoring

Dataset description

Ordnance Survey's addressing product, AddressBase® matches 29 million Royal Mail postal address to unique property reference numbers (UPRN), bringing a geographical dimension to the matched records. Identify a property and locate it on a map with precision – using the X and Y coordinates we’ve assigned to the Royal Mail PAF® data. Our basic classifications – residential or commercial – will reduce the costs and increase the effectiveness of your direct marketing. AddressBase™ contains Royal Mail PAF addresses (for England and Wales), both commercial and residential, matched to the local authority Unique Property Reference Number (UPRN).

European data infrastructure with broad catalog discovery, free evaluation access and production-grade API options.

190K+

indexed dataset pages

countries and EU institutions

2019

API-first since

Free API quota

for evaluation and prototypes

SLA

history and push on production APIs

FAQ

Questions before production use

Practical answers on evaluation, licensing, freshness, versioning and support.

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Yes. Selected APIs include a free API quota, so your team can validate coverage, freshness, response shape and workflow fit before asking for a production plan.

Often yes, but usage rights depend on the source license and dataset. We surface source, license and update metadata where available, and can help review terms before a production integration.

Maintained APIs include update metadata where available. For production integrations, we can add history, monitoring and push updates so changes are easier to detect and act on.

Production APIs can add SLA, stable identifiers, versioning support, history, push updates and direct support around the data your product or AI workflow depends on.

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