In interpreting and applying the provisions of this ordinance, they 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 ordinance impose greater restrictions than those of any statute, other ordinance or regulation, the provisions of this ordinance shall be controlling. Where the provisions of any statute, other ordinance or regulation impose greater restrictions than this ordinance, the provisions of such statute, other ordinance or regulations shall be controlling.