UK Property Intelligence API — Price History, EPC, Planning & Risk Scoring
Property due diligence in the UK requires checking Land Registry for prices, the EPC Register for energy ratings, Planning Data for constraints, the Environment Agency for flood risk, and BGS for ground stability. A single conveyancing search from Landmark costs £20-50. The Property Intelligence endpoint aggregates all these sources for a fraction of the cost — and adds a proprietary Environmental Risk Score.
What You Get
- •Price history: recent transactions in the postcode area with dates, prices, and property types
- •Area context: average price, median price, transaction volume, dominant property type
- •EPC energy profile: average rating, distribution (A-G), CO2 emissions, dominant heating and wall types
- •Planning constraints: conservation area status, listed buildings nearby, constraint level (none to restricted)
- •Environmental Risk Score (0-100): composite of flood zone, ground stability, shrink-swell clay, radon potential
- •Flood monitoring: current risk level and active warning count
- •Geology: ground stability, shrink-swell clay risk, radon potential (full depth)
- •Crime: total crimes in vicinity (standard+ depth)
Data Sources
HM Land Registry
Official record of 24M+ property transactions since 1995. Queried via SPARQL endpoint for area-level price data, trends, and transaction volumes.
EPC Register
Energy Performance Certificates with 90+ fields per property: energy rating, wall/roof/heating descriptions, CO2 emissions, floor area, construction age band.
Planning Data Platform
Aggregated planning data from 100+ datasets. Conservation areas, listed building locations, Article 4 directions, tree preservation orders.
Environment Agency
Flood risk zones, real-time monitoring station levels, and active flood warnings.
British Geological Survey
Ground stability, shrink-swell clay potential, radon risk, and bedrock geology.
Police.uk
Street-level crime data providing safety context for the property location.
Scoring Algorithm
Environmental Risk Score
Weighted composite: flood risk (30%), ground stability (20%), air quality (15%), water quality (15%), radon (10%), shrink-swell (10%). Includes per-factor breakdown.
Use Cases
Conveyancing & Surveying
Solicitors and surveyors run environmental searches as part of property transactions. This endpoint provides equivalent data to commercial search products at a fraction of the cost.
Property Portfolio Analysis
Landlords and investors analyse multiple properties. Batch calls across a portfolio reveal which properties have the highest environmental risk or lowest energy efficiency.
Mortgage Underwriting
Lenders assess property risk factors: flood zone, subsidence potential, and planning constraints all affect lending decisions.
Energy Retrofit Planning
Energy assessors identify properties with poor EPC ratings and high CO2 emissions. The EPC distribution data shows the renovation opportunity in an area.
Example
Request
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://www.ukdatapi.com/api/v1/property/SW1A%201AA?depth=standard"
Response
{
"data": {
"price_history": { "area_context": { "avg_price_12m": 1250000, "transactions_12m": 45 } },
"energy": { "avg_rating": "D", "avg_co2_tpa": 4.2 },
"planning": { "conservation_area": true, "constraint_level": "high" },
"environmental_risk": { "score": 32, "rating": "MODERATE" }
}
}Pricing
| Depth | Credits |
|---|---|
| Summary | 5 |
| Standard | 15 |
| Full | 30 |
Related Endpoints
GET /api/v1/location/{postcode}
UK Postcode Intelligence API
Profile any UK postcode: crime rates, flood risk, food hygiene, demographics, earnings, health indicators. 7 government sources in one call.
GET /api/v1/environment/{postcode}
UK Environmental Risk API
Environmental due diligence API: flood risk, ground stability, shrink-swell clay, radon, water quality, and composite Environmental Risk Score. Replaces £20-50 Landmark searches.
GET /api/v1/energy/{postcode}
UK Energy & Carbon API
ESG reporting API: live grid carbon intensity, electricity generation mix, local EPC efficiency profiles, and proprietary ESG Score. CSRD and TCFD compliance data.