Address lookup API

UK and international

These endpoints return address information when given a postcode, part of an address or a coordinate position. They provide you with access to addresses in the Royal Mail PAF and Multiple Residence datasets, and addresses in global datasets covering 249 countries including Eircode, USPS ZIP+4 and HERE.

address	Returns one or more full addresses with optional coordinates for a given postcode or part of an address. Supports 249 countries and can be used for UK postcode lookup, Irish Eircode lookup, global address lookup and geocoding.
autocomplete/find	Returns one or more address suggestions as an address is being typed. Supports 249 countries.
autocomplete/retrieve	Returns the full address for a given suggestion ID returned by the /autocomplete/find endpoint above.
udprn	Returns the full address for a given Royal Mail UDPRN.
street	Returns one or more street addresses for a given UK postcode.
nyb	Returns one or more Royal Mail Not Yet Built addresses for a given UK postcode.
position	Returns the coordinates for a given UK postcode or Irish Eircode.
rgeo	Returns one or more street / full addresses for a given coordinate position in the UK or Ireland.
ipaddress	Returns geolocation information for an IP address.

AddressBase

These endpoints return Ordnance Survey property records for England, Scotland and Wales using the AddressBase Core and AddressBase Premium datasets.

addressbase	Returns one or more property records with an associated Delivery Point Address (DPA) record that matches a given postcode or part of an address.
pafaddressbase	Returns one or more Royal Mail PAF addresses for a given postcode or part of an address, enriched with data from the associated property records.
addressbase/uprn	Returns the property record for a given Ordnance Survey UPRN.
addressbase/dpa	Returns one or more property records with an associated Delivery Point Address (DPA) record that matches a given postcode or part of an address.
addressbase/lpi	Returns one or more property records with an associated Local Property Identifier (LPI) record that matches a given postcode or part of address.
addressbase/dpalpi	Refer to the addressbase/lpi endpoint which now works in the same way as this original endpoint.