One API for address and property data
Search and retrieve an address, then use the same UPRN across EPC, sold prices, valuations, planning, environmental risk and Land Registry title data. No second vendor to integrate.
Address API comparison
Property Insights as an OS Places API alternative
Property Insights and the OS Places API both turn a search into a Great Britain address with its UPRN. OS Places is Ordnance Survey's own address API on the OS Data Hub. Property Insights gives you self-serve address autocomplete, and the same UPRN carries straight into UK land and property data on one key.
- Free live suggestions
- 35 credits per retrieved address
- UPRN and coordinates included
- 14-day trial · 500 credits
Read the API documentation · Comparison checked on 27 October 2026. Provider features and pricing can change.
At a glance
Choose according to coverage and workflow
| Capability | Property Insights | OS Places API |
|---|---|---|
| Primary focus | Address autocomplete and lookup for forms, with the same UPRN carrying into UK land and property data | Ordnance Survey's address search API, part of the OS Data Hub |
| Address source | Ordnance Survey AddressBase Core | Ordnance Survey AddressBase Premium |
| How you search | Free type-ahead suggestions, then a paid retrieve when a user selects an address | Free-text, postcode, UPRN and spatial searches |
| UPRN and coordinates | Included with every successful selected-address retrieve | UPRN and coordinates returned with address records |
| Geographic coverage | Great Britain: England, Scotland and Wales | Great Britain; check Ordnance Survey's documentation for other datasets |
| Getting access | Sign up online and take your key from the dashboard | An OS Data Hub account on the Public Sector or Premium plan. Free for public sector bodies that are PSGA members |
| Beyond address capture | Valuation, EPC, sold prices, planning, boundaries and environmental APIs on the same key | OS mapping, names and other geospatial APIs on the OS Data Hub |
| Free trial | 14 days, 500 credits | Check the current OS Data Hub plans |
| Commercial model | Monthly API credit plans with one key for every API | Premium plan API transactions; check current OS Data Hub pricing |
Comparison checked against OS Places API's published documentation on 27 October 2026.
Why teams switch
Why teams choose Property Insights
Every address comes with a UPRN
A successful retrieve returns the UPRN and coordinates from Ordnance Survey AddressBase Core, the identifier UK property, planning and land systems are built around.
Free suggestions, pay on retrieve
Type-ahead suggestions never touch your balance. You're only charged 35 credits once a user selects and retrieves a full address.
14-day trial, 500 free credits
Every account starts with a 14-day trial and 500 test credits, so you can try autocomplete and retrieval against your own forms before choosing a plan.
One key, one bill, every API
Address lookup and every other Property Insights API sit on the same monthly credit plan, one dashboard and one invoice.
Common questions
Frequently asked questions
What does an address lookup cost?
Type-ahead suggestions are free. Retrieving a selected address costs 35 API credits, and you are only charged when the retrieve succeeds.
How is Property Insights different from the OS Places API?
OS Places gives you direct access to AddressBase Premium with a wide range of search types. Property Insights is built for address capture in forms, with free suggestions and a single retrieve, and the UPRN it returns works across EPC, sold price, valuation, planning and environmental APIs on the same key.
Should a public sector team use OS Places instead?
If your organisation is a PSGA member, OS Places is available free of charge through the OS Data Hub, so it is likely the better fit for address lookup alone. Property Insights makes more sense when you also need property data such as valuations, EPCs or sold prices.
Does Property Insights return a UPRN?
Yes. A successful retrieve includes the UPRN, a canonical single-line address, the postcode and coordinates.
Is there a free trial?
Yes. Every account starts with a 14-day trial and 500 test API credits, so you can try address lookup and the rest of the API against your own forms before choosing a plan.
Build with the wider property API
Start with address capture, then keep the same property identity.
Use the selected UPRN or canonical address for EPC, valuation, sold-price, boundary and due-diligence calls — on the 14-day trial and the 500 free credits every account starts with.