Welsh land and property data landscape

Unique identifiers for property and land

Title Number

The unique identifier for each property on HM Land Registry’s property register. Used to index the Title and Title Plan documents for land registered in England and Wales. 13% of land in England and Wales in unregistered and so will not have a Title Number. 1

Polygon ID

The unique identifier for each ‘indicative extent’ on HM Land Registry’s property register. The relationship between the registered title and Polygon ID is managed through the title number.

INSPIRE ID

Unique identifiers for the INSPIRE Index Polygons that define the approximate geographical extent of land registered in England and Wales. There is a licensable dataset/service to lookup the Title Numbers for each INSPIRE ID.

Unique Property Reference Number (UPRN)

UPRNs are the unique identifiers for every addressable location in Great Britain.2 UPRNs are hierarchical which means there are parent UPRNs to group child UPRNs, for example, flats within a block of flats.3

The dataset was made available under the Open Government licence in July 2020. 4 5

Unique Address Reference Number (UARN)

A Unique Address Reference Number (UARN) is a unique identifier assigned to each Council Tax and Non Domestic Rate record from Valuation Office Agency.

All UARNs are mapped to UPRNs. For a minority of records, GeoPlace are unable to uniquely map UARNs to the lowest level (child) UPRN. In that case a group of UARNs are assigned to a higher level (parent) UPRN. VOA monitors which UPRNs are assigned to UARNs and there is an ongoing effort to reduce the number of UARNs that cannot be assigned to a child UPRN.6

Unique Street Reference Number (USRN)

The Unique Street Reference Number (USRN) is an 8 digit unique identifier for every street across Great Britain.

The Unique Street Reference Number (USRN) is an eight-digit unique identifier (a geocode) for every street across Great Britain. The USRNs for England and Wales exists within the National Street Gazetteer (NSG), the authoritative source of information about streets in England and Wales and is a compilation of data from 173 highway authorities’ Local Street Gazetteers. 7 The dataset was made available under the Open Government licence in July 2020. 8 9

Postcode

A postcode designates an area with several addresses or a single major delivery point (sometimes non-geographic).

Unique Delivery Point Reference Number (UDPRN)

The UDPRN is a unique identifier for deliverable addresses and is number issued by Royal Mail. It is 8 digits long. 10 11

Unique Multiple Residence Reference Number (UMRRN)

The UDPRN is a unique identifier for addresses with shared delivery points (e.g. flats with a shared letter box). It does not include bedsits, marinas, caravan sites, hostels, hotels or prisons.1213

Flood Re Unique Identifier (FRid)

Flood Re is a joint initiative between UK Government and insurers. There is a Flood Re unique identifier (FRid) for all of the 30 million UK residential properties. It is represented by 32 lowercase hexadecimal digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens). 14

Meter Point Administration Number (MPAN)

A Meter Point Administration Number, also known as MPAN, Supply Number or S-Number, is a 21-digit reference used in Great Britain to uniquely identify electricity supply points such as individual domestic residences.

Meter Point Reference Number (MPRN)

A Meter Point Reference Number (MPRN) is a unique number assigned to every single gas supply point in the UK and is used to identify individual gas supply points. They are made up of numbers only and don’t contain any letters. The format of an MPRN is quite standard and consists of between 6 and 11 digits. 15

Local Authority Business ID (Local Authorities / Food Standards Agency)

Local authorities maintain their own business premises IDs. The Food Standards Agency uses these food hygiene rating data includes references.

Cadw Listed Buildings Record Number

Listed buildings in Wales are assigned a Record Number by Cadw.

The Topographic Identifier (TOID)

A TOID (Topographic Identifier) is a unique and persistent identifier for each and every feature found in OS MasterMap products. 16

Address (BS7666:2006)

Local authorities maintain Local Land & Property Gazetteers to a standard format. Geoplace collect these together as the National Land & Property Gazetteer for England and Wales.

  1. https://www.gov.uk/government/organisations/land-registry/about ↩

  2. https://www.geoplace.co.uk/addresses-streets/location-data/the-uprn ↩

  3. https://cy.ons.gov.uk/peoplepopulationandcommunity/housing/methodologies/valuationofficeagencypropertyattributedataqualityassuranceofadministrativedatausedincensus2021#practice-area-3-quality-assurance-principles-standards-and-checks-applied-to-data-supplies ↩

  4. https://dluhcdigital.blog.gov.uk/2020/04/02/unique-property-identifiers-to-be-opened-under-open-government-license/ ↩

  5. https://www.geoplace.co.uk/power-of-place/becoming-open-and-royalty-free ↩

  6. https://cy.ons.gov.uk/peoplepopulationandcommunity/housing/methodologies/valuationofficeagencypropertyattributedataqualityassuranceofadministrativedatausedincensus2021#practice-area-3-quality-assurance-principles-standards-and-checks-applied-to-data-supplies ↩

  7. https://www.geoplace.co.uk/addresses-streets/location-data/usrn ↩

  8. https://dluhcdigital.blog.gov.uk/2020/04/02/unique-property-identifiers-to-be-opened-under-open-government-license/ ↩

  9. https://www.geoplace.co.uk/power-of-place/becoming-open-and-royalty-free ↩

  10. https://www.experian.co.uk/business/glossary/udprn/ ↩

  11. https://www.poweredbypaf.com/wp-content/uploads/2017/07/Latest-Programmers_guide_Edition-7-Version-6.pdf ↩

  12. https://docs.experianaperture.io/address-validation/global-datasets/asset/adg_mrf.pdf ↩

  13. https://www.poweredbypaf.com/wp-content/uploads/2017/07/Latest-Programmers_guide_Edition-7-Version-6.pdf ↩

  14. https://www.floodre.co.uk/wp-content/uploads/Bordereaux-Completion-Guide-V4.0.pdf ↩

  15. https://www.gasconnections.co.uk/meter-point-reference-number/ ↩

  16. [https://www.owenboswarva.com/blog/post-addr2.htm][43] ↩