Altering, demolishing, constructing, relocating or making changes to an occupancy are only some of the processes that require a building permit.
Altering or adding to an electrical, plumbing, gas or private sewage system will also require a permit within that discipline.
Occupying a building or portion of a building will require an occupancy permit.
Modifying, installing or adding to a gas appliance venting will require a gas appliance vent permit.