Updated: Feb 24
If your project needs planning permission and you do the work without getting it, you can be served an ‘enforcement notice’ ordering you to undo all the changes you have made.
When you need it..
You’ll probably need planning permission if you want to:
build something new
make a major change to your building, such as building an extension
change the use of your building
After you apply
Your local planning authority (LPA) will decide whether to grant planning permission for your project based on its development plan. It will not take into account whether local people want it.