Developments liable for CIL​

Illustrative examples of CIL chargeable and non-chargeable developments

A development will be liable for CIL if it:

• involves new build of at least 100m2 gross internal area (GIA) floorspace
• involves the creation of one or more dwellings - A charge can be levied on a single house or flat of any size

This includes development permitted by a ‘general consent’ (including permitted development). 

CIL will be charged on the basis of £ per square metre of additional floorspace. This takes into account all floors of a building – not just the building footprint.  

It will apply to all new dwellings, and to other development where the additional gross floorspace (including ancillary floorspace that relates to the development) is 100m2 or more.  

Calculating the levy

Visit our calculating and paying CIL page.

Exemption or relief from CIL

Some developments, such as social housing, charitable and self-build developments are exempt or eligible for relief from CIL. Find out more on our developments exempt and entitled to relief from CIL page.

Impact on CIL on existing or demolished buildings

Find out information about the impact of CIL on existing buildings and on demolished buildings.

If you are unsure about whether or not your development is liable for CIL we strongly advise you seek pre-application advice. See our CIL process page for more details.