national-mapping

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api-evangelist / ordnance-survey

Ordnance Survey is Great Britain's national mapping agency, a government-owned company that maintains the addressing and mapping layer the UK property market runs on - the Unique Property Reference Number (UPRN), the TOID, AddressBase, and the OS National Geographic Database.

real-estate government vector-tiles mapping geospatial united-kingdom open-data ogc gnss land-registry addressing proptech property-data uprn apis-json national-mapping

Updated Aug 12, 2026

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