1.   Required. It is unlawful to erect or enlarge any building structure without first having applied in writing to the Zoning Administrator for a permit to do so, and without first receiving said permit. No building or addition thereto constructed after the effective date of the regulations contained in this chapter and no addition to a previously existing building shall be occupied and no land vacant on said effective date shall be used for any purpose until a building permit has been issued by the Zoning Administrator. No change in a use, other than that of a permitted use to another similar permitted use, shall be made until a change in use permit has been issued by the Zoning Administrator. Every occupancy permit shall state that the use or occupancy complies with the provisions of these regulations.

2.   Application. Every application for a building permit shall be accompanied by plans and plot plan showing the actual shape and dimensions of the lot to be built upon, the location, size, and height of the building or structure to be erected or altered, the existing and intended use of each building or part, the proposed number of families or housekeeping units, and such other information with regard to the lot and neighboring lots as may be necessary for the enforcement of this chapter.

3.   Issuance. No building permit for a building (or portion thereof) constructed after the effective date of the regulations contained in this chapter shall be issued until the premises has been inspected and certified by the Zoning Administrator to be in conformity with the plans and specifications upon which the building permit was based.

4.   Expiration. All permits shall expire nine months after the date of approval.