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Find out if you need planning permission

Find out if you need planning permission and what resources are available to help you make a successful application.

Published on: 29 December 2020

Last updated: 4 February 2021

You may need to make a planning application if you want to:

  • build something new
  • make a change to your building such as an extension or a change to its appearance 
  • change the use of all or part of your building

Different rules apply to listed buildings and adverts and signs.

Additional controls apply within conservation areas.

For further advice, please visit the Planning Portal.

If your project needs planning permission and you carry out the work without getting it, you can be served an enforcement notice ordering you to undo all the changes you have made.

Permitted development rights

These allow you to make minor changes to your property or undertake certain works such as change of use without a planning application.

You may still need  to make an application for prior approval or notification.

For more information, please see the Planning Portal.

Assistance

Our pre-application service offers written advice by professional officers before you submit an application.

We are unable to give advice on the telephone as to whether or not planning permission is required, or whether your proposal is likely to be acceptable as circumstances may vary from one site to another.