How much will I have to pay?  

Eligible developments that receive planning permission from 1 September 2013 will be charged in accordance with the rates set out in the Charging Schedule and with indexation applied. The amount payable is calculated when planning permission is granted.

Can I pay in instalments? 

If the liability is over £50,000 payment can be made in instalments as set out within the Instalment Policy which allows payments to be spread over a longer period of time. Please note that this Instalment Policy, which will not be available if liability has not been assumed, a Commencement Notice has not been submitted before the relevant development commences, or if payments are not made in time. 

How can I make payment? 

You may pay the CIL using the following payment methods: 

  1. Online: The best way to make a payment is by paying online:
    Pay online
    You will need the Invoice Number, which can be found on the Demand Notice or invoice you should have received.
    Important: If you receive the following message ‘Do not make this payment again’ after you have entered your payment details it is likely that the receipt generating has failed but the payment will have gone through. If this occurs please contact the Council’s CIL Officer and we will be able to check if the payment has been received.
  2. BACS: Please ensure you enter the Invoice Number, which can be found on the Demand Notice or invoice you should have received, as the payment reference. The account details are:

    Sort code: 30-00-00
    Account no: 00332526 

If you do not use the correct Invoice Number when making payment, it could delay acknowledgement of your payment and may result in further payment requests.

Payment 'in kind' 

Southampton City Council will consider requests for the part or full payment of CIL by the provision of land or infrastructure.

What happens if I don’t pay the CIL? 

If the CIL remains unpaid, or the process is not followed correctly, the council may take any or all of the following actions, based on the CIL Regulations, to recover the debt.

  • Removal of the instalment facility
  • Impose surcharges and late payment interest
  • Issue a CIL Stop Notice
  • Seek authorisation from the courts to seize and sell assets to recover the CIL due
  • Seek committal to prison

How is the CIL calculated? 

The Community Infrastructure Levy (CIL) is calculated per square metre.

The calculation involves multiplying the CIL charging rate by the net chargeable floor area (based on Gross Internal Area), and factoring in an index figure to allow for changes in building costs over time.

The full calculation is set out under Schedule 1 of the CIL Regulations 2019.

Existing floor area that has been in continuous lawful use for a period of 6 months within the 3 year period preceding development being permitted can be used as deductible floor area in the calculation of the CIL liability. The onus is on the applicant to demonstrate continuous lawful use.

Current indexed CIL rates are detailed in the Charging Schedule section.

How is Gross Internal Area calculated? 

Gross Internal Area (GIA) measured to the internal face of the perimeter walls of each floor of the building, including circulation and service space such as corridors, storage, toilets, lifts etc and the existing floor space of a building. Generally, any structure with 3 or more walls and a roof is considered to be ‘internal’ floor space and therefore chargeable. Buildings ‘into which people do not normally go’ are exempt from CIL. These include buildings into which people go intermittently for the purpose of inspecting or maintaining fixed plant machinery.

The change of use of a floor space where a self contained residential unit will be formed is also chargeable if the existing continuous use cannot be demonstrated.

Is there are right to appeal against the Community Infrastructure Levy charge? 

Appeals can be lodged against some aspects of the CIL charge. The full range of appeals available are detailed in this table

Further information regarding the appeals process are detailed within Planning Practice Guidance 

Further details regarding appeals relating to CIL enforcement and surcharges are detailed within the Planning Inspectorate guidance 

In the first instance of you disagree with the CIL liability calculated in the Liability Notice you can request a review under Regulation 113 of the CIL Regulations. The review must be requested before the end of 28 days beginning on the day on which the Liability Notice was issued. To do this you must write a letter clearly explaining why you consider the Liability Notice to be incorrect (preferably including supporting information) and submit it by email with the title ‘Request for CIL Regulation 113 Review’ to: or by post to: 

CIL Officer, Infrastructure Planning and Development Service, Southampton City Council, Civic Centre, Southampton, SO14 7LY

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

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