CIL and Development Contributions supplementary planning document (SPD)
Changes from 23 July 2025: For affordable housing on small sites (1-9 units), the council will give more weight to national policy (NPPF paragraph 65) than to Policy CS21. For further information, see affordable housing.
The Development Contributions SPD and the Community Infrastructure Levy (CIL) Charging Schedule set out the contributions required from new development towards infrastructure, affordable housing and Thames Basin Heaths mitigation through the use of planning obligations and the CIL. They support Core Strategy policies CS21: Affordable Housing, CS13: Thames Basin Heaths Special Protection Area (SPA), CS16: Social and Community Infrastructure and CS28: Implementation and Delivery.
See development contributions for guidance on whether your development is liable to pay CIL, the charge sheet calculation tool and unilateral undertaking template and the latest Strategic Access Monitoring and Management (SAMM) charge.