UPRN Lookup UK: How to Find the Unique Property Reference Number for Any Address

Every addressable location in Great Britain — from houses and flats to letterboxes and sub-buildings — has a Unique Property Reference Number (UPRN). This 12-digit identifier is the official reference used by HM Land Registry, the EPC Register, local councils, emergency services, and utility companies to link disparate datasets to a single property.

What Is a UPRN?

A UPRN is assigned and maintained by Ordnance Survey as part of the AddressBase product. It is a persistent, stable identifier that does not change when a property is sold, renamed, or re-addressed. It links:

• Land Registry title registration
• EPC certificates
• Council tax records
• Planning applications
• Electoral roll data
• Utility service records
• Emergency service response routing

The UPRN is not a secret. It is a public reference number that you can and should know for any property you own, rent, or are considering purchasing.

How to Find a UPRN

Property Passport UK

Search any address at [propertypassport.uk/search](https://www.propertypassport.uk/search) and the UPRN is displayed prominently on every property record. It is the fastest free way to look up a UPRN by address or postcode.

EPC Register

The government’s official EPC database ([epc.opendatacommunities.org](https://epc.opendatacommunities.org)) includes the UPRN for each EPC certificate. Search by postcode to find properties and their UPRNs.

Local Council

Most local councils use UPRNs in their planning, licensing, and property records. Some councils publish address-to-UPRN lookup tools for their area.

Ordnance Survey AddressBase

The definitive source is Ordnance Survey AddressBase, which is available to public sector bodies and licensed to commercial data providers. Direct public access requires a licence, but the data is widely re-published through free consumer tools.

Why Does the UPRN Matter?

Property Research

Knowing a property’s UPRN allows you to cross-reference it against any dataset that uses UPRN indexing, including planning applications, flood risk zones, and council tax banding.

Conveyancing and Legal Work

Solicitors increasingly use UPRN to confirm property identity unambiguously, especially where addresses have changed or where there are multiple properties at the same address (flats, sub-divisions).

Energy Performance Certificates

Every EPC is linked to a UPRN. When a new EPC is lodged for a property, it is associated with its UPRN, creating a historical record of all energy assessments.

Digital Property Logbook

A Property Passport on Property Passport UK uses the UPRN as the primary property identifier. All data — EPC, sold prices, Land Registry title, and uploaded documents — is linked to the UPRN, ensuring the record persists regardless of what happens to the address.

UPRN vs Postcode

A postcode covers multiple properties. A UPRN identifies a single property uniquely. Postcodes change; UPRNs do not. For any work requiring precise property identification (legal, insurance, energy, conveyancing), the UPRN is more reliable than the postcode.

UPRNs in Scotland and Northern Ireland

The UPRN system as administered by Ordnance Survey covers England, Scotland, and Wales (Great Britain). Northern Ireland uses the Land & Property Services ‘Pointer’ system with its own unique property identifiers, though these are being linked to the GB UPRN system progressively.

How Many UPRNs Are There?

Ordnance Survey’s AddressBase contains approximately 37 million UPRNs in Great Britain, covering residential properties, commercial premises, sub-buildings, multi-occupancy addresses, and non-geographic locations. Property Passport UK covers the 19.35 million residential UPRNs in England and Wales.