Community Infrastructure Levy forms and process

The process of determining if a development is liable for CIL is in five stages:

Stage 1

For development that is likely to be CIL liable, in accordance with the Charging Schedule, the CIL Additional Information Requirement Form should be submitted with the planning application. The CIL Planning Application Additional Information Requirement Guidance will help you to complete this form.

In most cases the form will contain sufficient information for the council to calculate the CIL liability. However, further information may be required for large or complex applications.

Stage 2

Once the planning permission has been issued the council will issue you with a Liability Notice which will detail how much CIL is payable. Details of how this is calculated are available in the Charging Schedule.

Stage 3

Prior to the commencement of the CIL liable development  Form 1: Assumption of Liability should be submitted. In instances where planning permission is not required, including Prior Approval and certain forms of Permitted Development, Form 5: Notice of Chargeable Development should be submitted.

If you consider that the development should be offered relief from paying CIL Form 2: Claiming exemption or relief should be submitted.

Exemptions also exist for:

Stage 4

After Liability has been assumed for the development but before the commencement of the CIL liable development you must submit Form 6: Commencement Notice to the council.

If there are any changes of circumstances regarding the assumption of liability Form 3: Withdrawal of Assumption of Liability or Form 4: Transfer of Assumed Liability will need to be submitted before the final payment of CIL is due.

Stage 5

On the receipt of a valid Form 6: Commencement Notice we will issue a Demand Notice to the person that has assumed liability to pay CIL. Payments are not subject to VAT.

If no-one has assumed liability to pay CIL before the Demand Notice is issued the liability defaults to the owner(s) of the land. The Demand Notice will set out the details of the amount of CIL payable, payment options, due dates and any surcharges.

If the process is not followed correctly surcharges will be imposed.

If you have any questions please contact the CIL Officer at cil.enquiries@southampton.gov.uk


Southampton City Council will use the information provided on these forms to administer the Community Infrastructure Levy. If further information is needed in order to do so, you may be contacted using the details provided.

In performing this service, the Council may be required to share your information with other organisations or departments, but it will only do so when it is necessary in order for the service to be provided.

The Council may also share your personal information for the purposes of the prevention, investigation, detection, or prosecution of criminal offences, but will not share your personal information, or use it for this, or any other purpose, unless provided for by law.

Please note that, in order for the Council to fulfil its statutory obligations, the information provided on these forms and in supporting documents may be published on its website. If you require any further clarification, please contact cil.enquiries@southampton.gov.uk

More detailed information about the Council’s handling of your personal data can be found in its privacy policy