The money raised from the CIL can be used to pay for infrastructure that supports new development, such as transport schemes, green spaces, improvements to community buildings and maintenance of new infrastructure. 

The CIL is charged per square meter on new developments, and applies to new dwellings of any size, as well as any development where the internal area of a new building, extension, or change of use exceeds 100 square meters. 

All relevant developments receiving planning permission are liable for CIL, including applications registered prior to the adoption of CIL and applications granted at appeal. 

The amount of CIL liability depends on factors such as the location of the development, the type of use proposed, and the amount of floorspace being created or lost.

The principle behind CIL is that most development has some impact on infrastructure and should contribute to the cost of providing or improving infrastructure.