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.
Types of Work Requiring a Permit
Examples of work that require permits are:
Above or below grade flammable and combustible liquid tank removal or installation
It should be noted and clarified the language in the above code section does not say nor does it intend to imply that only structural work needs permits. The codes also pertain to several facets of the non-structural parts of a building/structure.