This is an easy-to-read page.
You normally need a building permit when you wish to build a new house, extend your house or make certain changes to your house.
You may also need a building permit to put up a fence or wall.
Your municipal building committee will decide whether you need a building permit for what you plan to build.
If you are unsure about whether you require a building permit, you should contact the building committee.
Sometimes, you must provide notification even if you do not require a building permit.
You can read about
Applying for a building permit
Building without a building permit
Permit-free building – "Attefallshus"
Boverket's rules for how you can build
CE marking of building products