The Local Property Identifier (LPI) dataset is addresses sourced from local authorities. It contains more addresses than the Delivery Point Address dataset by containing addresses that receive post and ones that do not e.g. infrastructure and footpaths.

KeyDescriptionFormatSizeMultiplicity
UPRNForeign key used to reference the delivery point address to the corresponding BLPU.integer121
ADDRESSConcatenated Address field.char5041
LANGUAGEA code identifying the language in use for the record.char21
USRNForeign key linking the Street record to the LPI record.integer81
LPI_KEYUnique key for the LPI.char141
LEVELMemorandum of the vertical position of the address.char300..1
ORGANISATIONName of current occupier on the fascia of the BLPU.char1001
SAO_START_NUMBERThe number of the secondary addressable object (SAO) or the start of the number range.integer40..1
SAO_START_SUFFIXThe suffix to the sao_start_number.char20..1
SAO_END_NUMBERThe end of the number range for the SAO.integer40..1
SAO_END_SUFFIXThe suffix to the sao_end_number.char20..1
SAO_TEXTContains the building name or description for the SAO.char900..1
PAO_START_NUMBERThe number of the primary addressable object (PAO) or the start of the number range.integer40..1
PAO_START_SUFFIXThe suffix to the pao_start_number.char20..1
PAO_END_NUMBERThe end of the number range for the PAO.integer40..1
PAO_END_SUFFIXThe suffix to the pao_end_number.char20..1
PAO_TEXTContains the building name or description for the PAO.char900..1
STREET_DESCRIPTIONName, description or street number.char1000..1
LOCALITY_NAMEA LOCALITY defines an area or geographical identifier within a town, village or hamlet.char350..1
TOWN_NAMETown name.char300..1
ADMINISTRATIVE_AREALocal Highway Authority name.char300..1
AREA_NAMEThird level of geographic area name, for example, to record island names or property groups such as crofts.char350..1
POSTCODE_LOCATORPostcode of the coordinate for the BLPU based purely on a spatial match against Code-Point® with polygons. This field must be used in conjunction with the RPC field to determine the accuracy of its position.char81
RPCRepresentative Point Code: this describes the accuracy of the coordinate that has been allocated to the BLPU. See code list: RPC_CODE in AddressBase Premium Technical Specification.char11
X_COORDINATEEasting coordinates in metres, defining the location in the British National Grid spatial reference system.float6 (2)1
Y_COORDINATENorthing coordinates in metres, defining the location in the British National Grid spatial reference system.float7 (2)1
LNGLongitude coordinate, defined based on the requested projection.float90..1
LATLatitude coordinate, defined based on the request projection.float90..1
STATUSThe status of the feature (i.e. APPROVED, ALTERNATIVE, PROVISIONAL, HISTORICAL). The AddressBase Premium product uses codes of 1,3,6,8 for these however the Address API will provide the text interpretation above.char111
MATCH (Conditional) - Only returned for find and match resourcesThe match score for the query against the returned address from 0 to 1. Resources other than Find and Match will return a fixed value of 1.0.float1 (1)0..1
MATCH_DESCRIPTION (Conditional) - Only returned for find and match resourcesThe description of the match. Exact: 1.0 (note: extra information in the input address that doesn’t match the ABPREM version is ignored). Good: 0.8 – 0.9 (most of the address matches, but a part of it may be different, such as a different postcode). Partial: 0.7 (address could represent the same address but has some significant differences). No Match: <0.7. Resources other than Find and Match will return a fixed value of "Exact".char80..1
LOCAL_CUSTODIAN_CODEUnique identifier of the Local Land and Property Gazetteer (LLPG) Custodian responsible for the maintenance of this record. See the code list here.integer41
LOCAL_CUSTODIAN_CODE_DESCRIPTIONDescription of the Local Land and Property Gazetteer (LLPG) Custodian responsible for the maintenance of this record.charas per code definition document1
CLASSIFICATION_CODEA code that describes the classification of the record, for example, CE01HE is a higher education establishment. See the code list here. char1, 2, 4, 61
CLASSIFICATION_CODE_DESCRIPTIONA description that describes the classification of the record, for example, CE01HE is a higher education establishment.charas per code definition document1
POSTAL_ADDRESS_CODEA code that describes the type of postal delivery that the object is subject to.integer11
POSTAL_ADDRESS_CODE_DESCRIPTIONA description that describes the type of postal delivery that the object is subject to.char1001
STREET_STATE_CODEA code identifying the current state of the Street.integer10..1
STREET_STATE_CODE_DESCRIPTIONA description identifying the current state of the Street.char1000..1
STREET_CLASSIFICATION_CODEA code for the primary street classification.char20..1
STREET_CLASSIFICATION_CODE_DESCRIPTIONA description for the primary street classification.charas per code definition document1
LOGICAL_STATUS_CODEA code for the logical status of the BLPU. See list here.integer11
BLPU_STATE_CODEA code for the physical nature of the property or land object. These are used to represent the physical state or the feature. See list here.integer11
BLPU_STATE_CODE_DESCRIPTIONA description for the physical nature of the property or land object. These are used to represent the physical state or the feature.char10..1
TOPOGRAPHY_LAYER_TOIDUnique key for the application cross reference record.char201
PARENT_UPRNUPRN of the parent record.integer120..1
LAST_UPDATE_DATEDate this record was last updated.datedate1
ENTRY_DATEDate of the data entry.datedate1
LEGAL_NAMERegistered legal name of organisation.char600..1
BLPU_STATE_DATEDate at which the BLPU achieved its current state in the real-world.datedate0..1
LPI_LOGICAL_STATUS_CODEA code for the logical status of this record.integer11
LPI_LOGICAL_STATUS_CODE_DESCRIPTIONA description of the Logical Status reflects where the LPI has reached in its life cycle. Logical status is important in identification of the addresses’ requirements, for example, whether it is an alternative address or an historic address.charas per code definition document0..1