The provisions of this Part
4 shall be held to be the minimum requirements for the promotion of the public health, safety, comfort, convenience and general welfare. Where the provisions of this Part
4 impose greater restrictions than those of any statute, other ordinance or regulation, the provisions of this Part
4 shall be controlling. Where the provisions of any statute, other ordinance or regulation impose greater restrictions than this Part
4, the provision of such statute, other ordinance or regulation shall be controlling.