In interpreting and applying the provisions of this chapter, the provisions shall be held to be the minimum requirements for the promotion of the public health, morals, safety, comfort, convenience and general welfare. The provisions of this chapter shall prevail when they impose greater restrictions than are imposed or required by statute, other ordinance, rule, regulation, permit or by any easement, covenant, or agreement between the parties. Conversely, when the provisions imposed by a statute, other ordinance, rule, regulation or permit, or by any easement covenant or agreement are more restrictive than the provisions of this chapter, the provisions of such statute, other ordinance, rule, regulation, permit, easement, covenant or agreement shall prevail.