A. BUILDING BUILDING OFFICIAL
For the purposes of this chapter, the following terms, phrases, words and their derivations shall have the meanings ascribed to them:
A structure designed, built or occupied as a shelter or roofed enclosure for persons, animals or property and used for residential, business, mercantile, storage, commercial, industrial, institutional, assembly, educational or recreational purposes. A structure of less than 120 square feet and 15 feet in height shall not fall within this definition.
The Building Official of the city.
B.
The word "shall" is always mandatory and not merely directory.