No building shall be erected, moved, altered, constructed, reconstructed, or enlarged, except as specified in this chapter, nor shall any land or building be used for any purpose or in any manner, except in conformity with all regulations, requirements and/or restrictions specified in this chapter for the district in which such building or land is located.

In interpreting and applying this chapter, the requirements contained herein are declared to be the minimum requirements for the protection and promotion of the public health, safety, morals and general welfare.