PropertyData is a research dashboard for property professionals. UKDataAPI is an API for developers. Overlapping data, different delivery models.
PropertyData.co.uk is a UK property analytics platform popular with investors, developers, and estate agents. It aggregates Land Registry transactions, rental yields, planning data, and demographic context into an interactive web dashboard. Subscriptions start at £29/month for basic access, rising to £79+/month for full features. The data overlaps significantly with UKDataAPI's Property endpoint — both draw from HM Land Registry, the EPC Register, and planning datasets. But PropertyData is a manual research tool: you search one location at a time via the web. UKDataAPI delivers equivalent data programmatically via API, with an Environmental Risk Score and planning constraint analysis, enabling developers to build property platforms, portfolio tools, and automated analysis workflows.
| Feature | UKDataAPI | PropertyData.co.uk |
|---|---|---|
| Land Registry price data | Area-level price history and trends | Detailed transaction data with filters |
| EPC energy ratings | Average rating, distribution, CO2 emissions | Detailed EPC data with filters |
| Planning applications | Status breakdown and approval rates | ✓Detailed application search and maps |
| Rental yield data | Not included | ✓Rental yields by area and property type |
| Environmental Risk Score | ✓0-100 composite with factor breakdown | No composite scoring |
| Flood risk | ✓EA real-time data with active warnings | Basic flood zone indication |
| Ground stability and geology | ✓BGS data — subsidence, shrink-swell, radon | Not included |
| Output format | ✓Structured JSON API | Web dashboard + data export |
| Batch processing | ✓Up to 500 req/min for portfolio analysis | Manual search, bulk export limited |
| Interactive maps and visualisation | Not included — data API only | ✓Full mapping and heatmap tools |
| Crime data | ✓Included in property endpoint | Not included |
| AI agent access (MCP/x402) | ✓Native support | Not available |
UKDataAPI
From £0.01/call (summary) to £0.06/call (full). Pay-as-you-go. No contract. Free tier: 200 credits/month.
PropertyData.co.uk
Subscriptions from £29/month (Essentials) to £79+/month (Professional). Annual billing discounts available.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://www.ukdatapi.com/api/v1/property/SW1A%201AA?depth=standard" # Returns: price history, EPC energy profile, planning constraints, # Environmental Risk Score (0-100), flood risk, crime data # Cost: 15 credits (£0.03)
200 free credits. No contract. No credit card.
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