Same Environment Agency and BGS data. API instead of 40-page PDF. 99% cheaper.
Landmark and Groundsure dominate the conveyancing environmental search market. A single CON29DW drainage and water search costs £25-54. A comprehensive environmental report is £40-80. Millions are ordered every year for property transactions. UKDataAPI's Environment endpoint delivers equivalent data — flood risk from the Environment Agency, ground stability from the British Geological Survey, water quality, and radon potential — for £0.02 per call. In structured JSON, not a 40-page PDF that a solicitor has to read manually.
| Feature | UKDataAPI | Landmark / Groundsure |
|---|---|---|
| Flood risk zones | EA real-time data | EA data (delayed) |
| Active flood warnings | ✓Live from EA | Not real-time |
| Ground stability (subsidence) | BGS data | BGS data |
| Shrink-swell clay | Included | Included |
| Radon potential | BGS classification | BGS classification |
| Water quality (WFD) | Included | Included |
| Environmental Risk Score | ✓0-100 composite with factor breakdown | No composite score |
| Output format | ✓JSON API | PDF report |
| Turnaround time | ✓< 1 second | Minutes to hours |
| Batch processing | ✓500 req/min for portfolio analysis | One at a time |
| Professional indemnity insurance | Not included | ✓Included with report |
| Accepted by mortgage lenders | Not a regulated search product | ✓Yes — accepted by all lenders |
UKDataAPI
From £0.008/call (summary) to £0.04/call (full). No minimum order.
Landmark / Groundsure
£25-80 per search. Volume discounts for conveyancing firms.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://www.ukdatapi.com/api/v1/environment/BS1%204DJ?depth=standard" # Returns: Environmental Risk Score (0-100), flood risk, # ground stability, shrink-swell, radon, water quality # Cost: 12 credits (£0.02)
200 free credits. No contract. No credit card.