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OS Downloads API

Save valuable time by automating the discovery and download of detailed OS data.

OS Open Linked Identifiers

OS Open Linked Identifiers provides authoritative relationship between UPRNs, USRNs, TOIDs and meta data to enable reliable matching; for greater data connectivity.

OS Open USRN

A dataset containing all USRNs from OS MasterMap Highways Network with a simplified line geometry.

OS Open TOID

A dataset of unique identifiers for a wide range of landscape and built environment features, with a generalised location, extracted from OS MasterMap products.

OS Open UPRN

A dataset of unique identifiers for every addressable location in Great Britain, containing all Unique Property Reference Numbers (UPRNs) and geometry from AddressBase Premium.