The Best UK Property Data APIs in 2026 — Compared
The UK property data API market has fragmented: some providers focus on address lookup, others on investment analytics, others on planning data. This guide compares the main options across coverage, pricing, and use case fit.
The landscape in 2026
UK property data APIs have grown rapidly since 2020. Government open data releases — Land Registry Price Paid, MHCLG EPC register, Environment Agency flood risk, OS Open UPRN — have made the underlying data freely available, but accessing it reliably at scale and as structured JSON still requires an aggregation layer. That is what the providers below offer.
Providers compared
Homedata
Best for: Developers building property applications that need multiple data types from a single API.
Coverage: 29 million properties (UPRN-matched). EPC, sold prices, flood risk, council tax, planning, comparables, AVM, live listings, broadband, schools, demographics, title ownership.
Pricing: Free tier (100 calls/month). Paid from £49/month (2,000 calls). Pay-as-you-go, no annual commitment.
Free tier: Yes — no credit card required.
API type: REST JSON. Sub-200ms responses.
Street Data
Best for: Estate agents and portals needing live listing feeds and property data enrichment.
Coverage: Strong on listing activity and sold prices. Less depth on environmental risk and government data.
Pricing: Subscription-based; pricing on application.
Free tier: No.
Sprift
Best for: Estate agents and conveyancers needing printable property reports with a curated data set.
Coverage: Good across residential property data. Primarily a report product with API access at higher tiers.
Pricing: Per-report pricing for the report product; API access from several hundred pounds per month.
Free tier: Trial only.
PropertyData
Best for: Property investors analysing rental yield and capital growth by area.
Coverage: Strong on investment metrics (yield, growth), less depth on individual property attributes.
Pricing: Web dashboard from £20/month; API access on higher tiers.
Free tier: Trial period.
Searchland
Best for: Property developers and surveyors researching sites via a visual map tool.
Coverage: Strong on planning applications and ownership data. SaaS dashboard, not a developer API.
Pricing: £195/seat/month (annual commitment).
Free tier: No.
Ideal Postcodes
Best for: Address lookup and postcode validation only.
Coverage: Royal Mail PAF-based address data. Does not cover property attributes, EPC, prices, or risk.
Pricing: Pay-per-call. Free tier available.
Free tier: Yes.
Side-by-side comparison
| Provider | Free tier | EPC | Sold prices | Flood risk | REST API |
|---|---|---|---|---|---|
| Homedata | ✓ | ✓ | ✓ | ✓ | ✓ |
| Street Data | ✗ | ✓ | ✓ | Partial | ✓ |
| Sprift | ✗ | ✓ | ✓ | ✓ | Higher tiers |
| PropertyData | Trial | Partial | ✓ | ✗ | Higher tiers |
| Searchland | ✗ | Partial | ✓ | ✗ | SaaS only |
| Ideal Postcodes | ✓ | ✗ | ✗ | ✗ | ✓ |
Frequently asked questions
What is the best UK property data API in 2026?
For multi-attribute programmatic access, Homedata covers the most ground. For address-only, Ideal Postcodes. For investment analytics dashboards, PropertyData.
Which UK property data APIs have a free tier?
Homedata (100 calls/month, no card) and Ideal Postcodes both offer free tiers. Most others are subscription-only.
How does Homedata compare to PropertyData?
PropertyData focuses on investment metrics via a dashboard. Homedata is a REST API covering 19+ endpoints across property attributes, risk, comparables, and title data.