Apply for planning permission

When you need planning permission

Planning permission is normally needed for:

  • new buildings
  • changes to existing buildings such as an extension
  • changing the use of a building

GOV.UK explains when you do and do not need planning permission.

You need to make sure that you have the right permission for work to be done on your property. You may be prosecuted if work has not been carried out legally.

To find out if planning permission is required before you begin, use our free online checker (PlanX).

We also offer a paid planning advice service.