You can apply to establish whether or not changes to existing planning permission are 'non-material' and therefore do not the need a new planning application.
Charges to change a planning application
Applications fees for householders and all other application types are available on the Planning Portal.
Timescales to change a planning application
We have 28 days to decide non-material amendment applications.
Outcome of your application to make changes to a planning application
- if we decide changes are non-material, works can proceed under the terms of the original planning permission and any additional conditions we impose
- if we decide that the changes are material, a new planning application will be needed for the development
Applications now liable for Community Infrastructure Levy
On 6 November 2025 it was agreed by Full Council to adopt the Community Infrastructure Levy (CIL). Any eligible development which is granted planning permission on or after 1 February 2026 is liable to pay CIL.
Subsequent to its adoption, there may now be instances known as transitional cases where development granted planning permission before the levy came into force is later amended through a Section 73 permission after the levy has taken effect. Whilst CIL is not charged on development that is already permitted through the pre-CIL permission, any additional liability that is created through the in-CIL permission will be subject to the levy.
Find further guidance on CIL transitional cases on GOV.UK.
Also see
Planning Enquiries
DM Business Support