AddressBase Premium / AddressBase Plus

What it contains

Every GB address with UPRN, classification code (residential/commercial subtype), parent-child relationships (flats within blocks - essential for heat network connection counts), coordinates, and cross-reference to VOA and Royal Mail PAF.

When you need it

Useful at these project stages, from the working group's stage matrix:

Strategic Definition

Matched on

Ordnance Survey and topographical surveys

Assigned by

Matched to data items the matrix names

Coverage and detail

Geographic

Great Britain

Nations

England, Scotland, Wales

Resolution

Address / UPRN

Formats

CSV, GML, GeoPackage

Update cadence

Every 6 weeks

Access and machine route

Licence as stated

PSGA (free to public sector members) or OS Data Hub commercial. NOT open.

Assertion source

as published by Ordnance Survey / GeoPlace

Protocol

OS Downloads API / OS Places API (REST)

Endpoint

https://api.os.uk/downloads/v1/products/AddressBasePremium

Harvest note

yes-automated (with key) note recorded in the machine_endpoint field: key required OS Places API for query access

Caveats

NEW. The property classification field is what lets you separate domestic from non-domestic heat load at building level - OS Open UPRN has coordinates but no classification.

Classification

Category

Unassigned

Assigned by

Not yet determined

Depth domain

Surface

Technology

Open-loop / ATES

Data form

Tabular

Evidence confidence

Not yet assessed. Only a person can set this.

How current this entry is

Last updated here

2026-09-22

Last checked against the holder

2026-09-07

Checked by a person

Not yet. Nobody has read this entry.

Catalogue id

addressbase-premium-addressbase-plus