CIL indexation – outline vs reserved matters applications

RE: CIL indexation – outline vs reserved matters applications

2026-02-24T08:13:14Z

Hi Rebecca. We apply the indexation rate on the permission that is built, so the reserved matters in this scenario. Similarly, if a S73 application is later submitted, this would take precedence. We use Exacom and there is a setting to choose Outline or Reserved Matters for indexation (ours is set to reserved matters). Hope that helps.

RE: CIL indexation – outline vs reserved matters applications

2026-02-23T08:14:51Z

Hi Rebecca, we also calculate using the pyi from the year outline permission was granted for the same reasons as Claire.

If you use Exacom for CIL - the Admin section lets you choose whether to Index on Outline or Reserved Matters so I think there must be differences across authorities.

RE: CIL indexation – outline vs reserved matters applications

2026-02-19T08:34:41Z

Hi Rebecca,

I sort legal advice on this and the result was that we take the index from the outline planning permission decision date. The advice I got was that a reserved matters application is not a planning permission in its own right. The CIL regulations state that the Ip rate is for the calendar year in which planning permission was granted, and therefore the outline planning permission is the relevant date. However, I know there has been much debate about this.

Kind regards

Claire

CIL indexation – outline vs reserved matters applications

2026-02-18T10:45:23Z

Hi all,

I’m looking to gather insight from LPAs on how you apply CIL indexation in your planning process. Specifically, when you issue planning permission for a scheme that has both an outline planning application and subsequent reserved matters applications:

Which permission do you apply CIL indexation to?
• Do you index from the outline planning application stage?
• Or do you apply indexation at the reserved matters application stage?

Thanks in advance!