Property Risk Data API UK
Seven environmental risk datasets for any UK property — from a single API call. Flood risk, radon gas, coal mining subsidence, landfill proximity, noise pollution, invasive plants, and air quality. Used by insurers, conveyancers, mortgage lenders, and property platforms building inline risk assessments.
What's in the API
Flood Risk
River, surface water, coastal, groundwater — Low/Med/High/Very High
Details →Radon Gas
Radon potential from British Geological Survey data
Details →Coal Mining
High/Medium risk from Coal Authority planning constraints dataset
Details →Landfill Proximity
Distance to nearest EA Historic Landfill site in metres
Details →Noise Pollution
Road and rail noise in dB with DEFRA plain-English labels
Details →Invasive Plants
7 Schedule 9 species (knotweed, giant hogweed, etc.) — 5-mile radius
Details →Air Quality
Live DAQI index from DEFRA monitoring stations
Details →Council Tax
Band A–H — separate from environmental risk but often co-fetched
Details →Schools
Nearby schools — phase, Ofsted, distance, pupil count
Details →Combined risk endpoint
Call the property intelligence endpoint to receive all risk scores in a single API call — no need to make 7 separate requests.
curl -H "Authorization: Bearer YOUR_KEY" \
"https://api.homedata.co.uk/api/property-intelligence/100023336956/?modules=risk"Pricing
Risk data is included in all plans including the free tier. Start with 100 calls/month — no credit card.
Free
£0
100 calls/mo
Starter
£49
2,000 calls/mo
Growth
£149
10,000 calls/mo
Pro
£349
50,000 calls/mo
FAQ
Do I need separate API keys for each risk dataset?
No — one API key covers all datasets. Call individual endpoints or use the combined property intelligence endpoint for multiple risk scores in one request.
What data sources back the risk scores?
Environment Agency (flood), British Geological Survey (radon), Coal Authority (coal mining), EA Historic Landfill (landfill), DEFRA (noise, air quality), NBN Atlas (invasive plants).
Can I use risk data for insurance underwriting?
Our data is used as an input signal by insurance platforms. For regulated underwriting decisions, check your regulatory requirements — we provide data, not formal risk assessments.