Current IFS

Developer contributions data

Developer contributions include section 106 planning obligations, the Community Infrastructure Levy (CIL), section 278 agreements and any agreements that either secure funding towards new development or provide infrastructure as part of any new development.

It is recommended that local planning authorities that have received developer contributions publish their data on a regular basis, at least once a year, and in an agreed format. This provides for transparency and accountability at the level of individual obligations.

Developer contributions data must be entered in 3 separate CSV (spreadsheet) files:

Developer agreements: listing all the legal agreements securing contributions from a development for infrastructure or affordable housing, and all the demand notices issued for CIL (this data can link you straight to the planning documents including the S106 Planning agreement or CIL documentation)
Developer agreement contributions: listing the individual obligations/sums within an agreement, assigned to particular purposes, as well as the split in the CIL contribution purposes, or the CIL amounts issued in Demand Notices
Developer agreement transactions: listing whether the contribution has been received, allocated, transferred, spent or returned (please be aware that some amounts will have more than 1 transaction against them)

Draft IFS 25-26 [pdf] 2MB

Appendix 1 - Unspent as at June 2026 [xlsx] 51KB

Appendix 2 - RSPB Ranger report Apr 25 to Mar 26 [pdf] 5MB