A building permit grants you the right to erect, alter or change the use of a facility in the case of projects requiring a permit. It is a state declaration that the project does not conflict with public law, which must be examined in the building inspection procedure. However, this only applies to the time of the decision.
Projects not subject to approval
A project does not require a permit if it is free of procedures or exempt from approval. Projects are exempt from procedures if they are of minor relevance under building law. Projects that are not special buildings and comply with a qualified development plan, as well as the conversion of attics for residential purposes, may be exempt from approval (see "Related services" below). However, this is dependent on the municipality. If the municipality requests that an approval procedure be carried out, the building project is not exempt from approval.
If the project does not require approval, you do not have to apply for a building permit. You would not be granted such a permit.
Consequences in the absence of a required building permit
If you erect or modify a facility or change its use without a required building permit, the competent lower building supervisory authority may intervene and take appropriate measures. This can go as far as ordering the removal of the facility.