Do I need planning permission?
Some extensions and other building work can be carried out without planning permission on most houses which is known as permitted development.
To find out more about particular home improvement projects you can explore the Planning Portal's projects page, which has an interactive house to help you understand if planning permission is required or not.
Next steps if you do not require planning permission:
If to the best of your knowledge you believe that your project does not need planning permission it is advisable to apply for a certificate of lawful development.
Next steps if you require planning permission
You'll need to visit the pre-application advice section which is followed by the option to make your application.
Do you need Building Regulations permission?
Most extensions and alterations require a Building Regulations application. Further information can be found on Building Control Advice.
Planning and Building Control
Please use the details below for all enquiries regarding planning consent and building control, including any change of use or change to the outside appearance.
Address: Harrow CouncilPlanning and Building Control
PO Box 1358
Harrow
HA3 3QN