Community Infrastructure Levy

The Community Infrastructure Levy (CIL) allows local authorities to raise funds from developers undertaking new building projects in their area.

The Community Infrastructure Levy (CIL) is a charge collected from new developments. The CIL applies to all proposals that add 100m2 of new floorspace or an extra dwelling. This includes bringing a vacant building back into use. The amount to pay is the increase in floorspace (m2) multiplied by the rate in the CIL charging schedule. 

The money raised from the Community Infrastructure Levy pays for the infrastructure required to support development. This includes transport schemes, flood defences, schools, health and social care facilities, parks, open spaces and leisure centres.

Hillingdon's CIL

The London Borough of Hillingdon adopted its  CIL Charging Schedule on 10 July 2014 [5MB] and it has applied to new developments in the borough since 1 August 2014.

What does the levy fund?

While Hillingdon's CIL Charge is in effect, the council publishes a list setting out the strategic projects or types projects it intends to fund from the revenue raised from the charge. This list is known as the Regulation 123 list [68KB] . Any reviews to this list will be subject to public consultation.

Annual reports

Hillingdon council reports on Community Infrastructure Levy receipts and expenditure each year.

The Mayor's CIL

The Mayor's CIL applies to all qualifying developments approved on or after 1 April 2012. Hillingdon Council is a CIL collecting authority for the Mayor of London.

Mayoral CIL 1:

This applies to CIL liable developments granted planning permission on or after 1 April 2012, which is used by the Mayor of London to fund the delivery of Crossrail. For developments in Hillingdon, the Mayoral CIL1 rate is £35 per square metre plus indexation.

Mayoral CIL 2:

These rates apply to all planning permissions granted from 1 April 2019 and may also apply to some phased planning permissions granted before then. For developments in Hillingdon, the Mayoral CIL2 rate is £60 per square metre plus indexation.

Further details, including the charging schedule, are available from the Greater London Authority's website.

What you need to do

Planning applications

Whether or not you believe your development is liable, you should complete the CIL Additional Information form below:

When you receive your decision notice granting planning permission, it will indicate if we think your application is CIL liable and you'll receive a CIL Liability Notice as soon as practicable.

CIL liable developments

If your application is liable for CIL, you should ensure you:

  • Complete an Assumption of Liability form(s) as soon as possible after receiving a Liability Notice.
  • Complete a Claiming Exemption or Relief form if your development is eligible for charitable relief or social (affordable) housing relief before the development commences.
  • Complete the relevant self-build exemption claim form if your development is eligible for self-build (new dwelling, annex or extension) exemption before the development commences.
  • Complete and return a CIL Commencement Notice before the development commences (this form must be completed in addition to any notice relating to Building Regulations).

It's also your responsibility to notify us if:

If you're uncertain which forms you need to complete, please contact us before you intend to start development to avoid any unnecessary expense.

Making a CIL Payment

The details for making your CIL payment will be outlined in the Demand Notice and Invoice issued by the council once we've been notified your development has commenced. 

Paying in instalments

The council has agreed an CIL Instalments Policy [87KB]  for the payment of CIL contributions.

Contact us

If you have any questions or need more information, contact us at

Page last updated: 29 Sep 2020