Geocode UK property data.
Coordinates for 18,781,918 England & Wales buildings — homes, commercial premises, and the public buildings on Display Energy Certificates — built from the June 2026 EPC register and OS Open UPRN. Addresses are matched to the building against 21.8 million register entries; postcode centroids fill the gaps. 1,000 lookups free, then £20 once.
Upload a file
CSV, Excel, or zipped shapefile. Parsed locally.
Load sample data: 150 recent house sales (free, unlimited)
ArcGIS Online
Geocode UK addresses for ArcGIS Online without spending credits: import a hosted feature layer or table from your account, save results back as a new layer.
Address fields
Pick the columns that make up the address. A UPRN column, if present, is found and used automatically.
Preview
Run the whole file
A free key covers 1,000 successful lookups. No card.
Results
Download
Original columns plus lat, lon, precision, match_type, matched_uprn.
KML, Shapefile, and ArcGIS exports contain matched rows only. Shapefile column names truncate to 10 characters (format limit).
Precision
Matched to the building: by address against the register's 21.8 million entries, or through a UPRN column when the file has one.
Postcode centroid from ONS open data. Typically 50–300 m out; more in rural areas.
Nothing resolved. Not counted against the allowance.
One payment
The first 1,000 successful lookups are free. £20 removes the cap permanently.
Get a free key- 1,000 lookups free No card required.
- £20 once Unlimited lookups after a single payment.
- One key Works in this tool and the REST API.
- Unmatched is free Only successful matches count.
- Six export formats CSV, Excel, GeoJSON, KML, Shapefile, ArcGIS Online.
- Monthly data Rebuilt from each EPC release. Current: June 2026.
Questions
What does it match on?
Addresses. Each row is matched against the EPC register's address strings within its postcode, with strict fuzzy rules: abbreviations (Rd/Road), flats and unit numbers, ordering, ordinals, apostrophes. A row with no confident match falls back to the postcode centroid rather than guessing. UPRN columns are used automatically when present.
Is my file uploaded?
No. Parsing and exports happen in your browser. Only the postcodes and UPRNs being matched are sent to the API. The ArcGIS connection moves data between your browser and your own Esri account.
Can I geocode a spreadsheet of UK addresses?
Yes. Upload a CSV, Excel file, or zipped shapefile, point at the address columns, and download the same file back with lat, lon, and precision columns added. Works with address lists from any source.
How do I convert postcodes to latitude and longitude?
A file with just a postcode column works fine: each postcode returns its centroid coordinates. Files with full addresses do better, matching to the individual building where the register allows.
What is a UPRN?
The Unique Property Reference Number: the ID Ordnance Survey assigns to every addressable location in Great Britain. If your data has a UPRN column, those rows resolve to exact building coordinates automatically.
Can I use the results in ArcGIS, QGIS or Google Earth?
Yes. Exports include GeoJSON and Shapefile for GIS software, KML for Google Earth, and direct save to ArcGIS Online as a hosted feature layer. CSV and Excel cover everything else.
Where does the data come from?
The England & Wales Energy Performance of Buildings Register — domestic and non-domestic EPCs plus Display Energy Certificates — joined to OS Open UPRN, with postcode centroids from ONS open data. Sources and licences are listed on the about page.
Does it only cover houses?
No. The register spans homes (domestic EPCs), commercial buildings like shops, offices and industrial units (non-domestic EPCs), and public buildings like schools, hospitals, council offices and libraries (Display Energy Certificates). Any building with an energy certificate can match at property level.
What's the coverage?
Building-level: England and Wales. Postcode centroids: England, Wales, and Scotland. Northern Ireland postcodes return unmatched for data-licensing reasons.