According to the 2012 International Residential Code and 2012 International Building Code, a permit is required when “Any owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be done, shall first make application to the building official and obtain the required permit.”
- In general, anything that effects foundations or roof support structures, or adding to an existing structure requires a building permit.
- In general, adding to, or running a new circuit, circuits, or service on any voltage over 50 requires an electrical permit.
- In general, adding to, or running new drains, vents or potable hot and cold-water piping requires a plumbing permit.
For more information, see When is a Building Permit Required?