API & Data Access
s106 Tracker holds structured Section 106 and CIL data for over 300 Local Planning Authorities in England, covering financial years from 2019/20 onwards. If you need this data for your application, research, or analysis, we can help.
Who uses this data?
- PropTech companies — integrate S106 data into site assessment and land acquisition tools
- Planning consultants — benchmark S106 contribution levels across councils for viability assessments
- Housing associations — track affordable housing delivery funded through S106
- Academic researchers — analyse developer contribution patterns across England
- Journalists — bulk data access for national and regional analysis
What's available
| Data | Coverage |
|---|---|
| S106 received, spent, held by council and year | 300+ LPAs, 2019/20 onwards |
| CIL received, spent, held | Where councils charge CIL |
| Breakdown by purpose category | 6 standardised categories |
| Individual S106 agreements | ~65 councils (planning.data.gov.uk) |
| Postcode to LPA lookup | 1.4M English postcodes |
Indicative pricing
Free
£0
- CSV download from comparison page
- All council summary data
- Attribution required
Basic API
£50/mo
- REST API access
- All annual report data
- Purpose breakdowns
- 1,000 requests/day
Pro API
£200/mo
- Everything in Basic
- Individual agreements
- Postcode lookup
- Unlimited requests
These are indicative prices to gauge demand. We haven't built the API yet. If you're interested, tell us about your use case and we'll prioritise accordingly.
Interested?
Tell us about your use case and we'll be in touch.