Know your costs
before you write a line of code.
PropertyData's credit system charges 10× the headline rate for UPRN lookups and 50× for building analysis. With Homedata, call weights are transparent and documented — most endpoints cost 1 call, premium endpoints cost more based on real infrastructure costs. You can budget before you build.
Free tier — 100 calls/month, no credit card. Address find costs 2 calls, retrieve costs 5. Transparent call weights.
A typical property workflow — per property
PropertyData.co.uk
Credit systemHomedata
Flat ratePropertyData credit costs verified from their public docs, March 2026. Figures may change — always check their current pricing.
Side by side
What matters when you're building a product on top of UK property data.
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|
PropertyData.co.uk | |
|---|---|---|
| Pricing model | Transparent call weights — 1, 2, 5, or 10 calls per request | Credit system — 1 to 50 credits per request |
| Free tier | Permanent — 100 calls/month | 14-day trial, 500 credits. No permanent free tier. |
| Address → UPRN lookup | Always free — never counted | 10 credits per request £0.14/lookup on entry plan |
| Predictable monthly cost | Yes — calculate cost before you build | Depends on endpoint mix. Must profile each endpoint to estimate monthly bill. |
| Self-serve signup | Instant API key — no sales call | Self-serve available |
| Properties covered | 29 million UK residential properties | UK residential + some commercial |
| UPRN-first data model | Every endpoint keyed on UPRN | UPRN supported across most endpoints |
| EPC + environmental risk | EPC, 7 risk types, solar, planning | EPC, flood, planning available |
| Public pricing page | Transparent — one page, all plans | Public, but effective cost requires per-endpoint analysis |
| Area-level analytics | Deprivation, agent stats, price trends by outcode | Broader — demographics, growth, yields, demand |
| AVM / valuation models | Not yet available | Sale, rent, HMO, commercial, historical |
| Developer docs | Sidebar nav, code in 3 languages, interactive playground | Comprehensive — 65 endpoint pages |
Where PropertyData is stronger
We'd rather be honest than lose your trust. PropertyData is a mature product with real advantages — especially if you need area-level analytics or AVM valuations.
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AVM valuations
Sale, rental, HMO, commercial, and historical valuations across multiple models. We don't have this yet.
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Deeper area analytics
Demand scores, yield estimates, population demographics, growth rates, household income — broader outcode-level coverage.
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Web UI for research
Their property search and dashboard is genuinely good for ad-hoc research. If you need a tool, not an API, PropertyData may be the better fit.
Where Homedata is stronger
Built from the ground up for developers who ship products — not analysts who run reports.
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Billing you can forecast
Transparent call weights — most endpoints 1 call, address find/postcode 2, retrieve 5, comparables 10. Every response includes an X-Call-Weight header. No credit calculators, no mid-month surprises.
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Address lookup is cheap and transparent
Address find costs 2 calls, retrieve costs 5 — reflecting real licensing costs. On PropertyData, a UPRN lookup costs 10 credits. A complete find-then-retrieve on Homedata is 7 calls vs 10+ credits on PropertyData.
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Permanent free tier
100 calls/month forever. No credit card. Prototype, explore, validate your idea — before you commit to anything.
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Enriched property data on retrieve
Address Retrieve returns bedrooms, property type, EPC rating, floor area, construction age band — in a single call. No separate property lookup required.
From signup to first call in under 5 minutes
Sign up, get your API key instantly, make your first call. No sales process, no waiting for approval.
Request
# Address search — 2 calls (vs PropertyData's 10 credits)
curl https://api.homedata.co.uk/api/address/find/ \
-G --data-urlencode "q=10 Downing Street, London"
# Retrieve full property data (5 calls)
curl https://api.homedata.co.uk/api/address/retrieve/10002210501/ \
-H "Authorization: Api-Key YOUR_API_KEY" \
-G --data-urlencode "level=full"
Response
{
"uprn": "10002210501",
"address": "10 Downing Street, London",
"postcode": "SW1A 2AA",
"bedrooms": 4,
"property_type": "Terraced",
"current_energy_efficiency": 72,
"epc_floor_area": 310,
"construction_age_band": "1900-1929",
"has_garden": false,
"building_height": 14.2,
"geometry_area_m2": 412,
"latitude": 51.5034,
"longitude": -0.1276
}
One call. No separate property lookup endpoint. Beds, EPC, floor area, construction age — all returned together.
Start with the free tier.
Ship when you're ready.
100 calls/month free, no credit card, no expiry. Address search costs just 2 calls — far less than PropertyData's 10-credit UPRN lookup.
Or see full pricing — no credit calculator required.