A.   Minimum Requirements: The provisions of this title shall be held to be the minimum requirements for the promotion of the public health, safety, morals, comfort and general welfare.
   B.   Nonconflicting Provisions: It is not intended by this title to interfere with, abrogate, annul or repeal any ordinance, resolution, rule or regulation heretofore adopted which does not conflict with the provisions of this title.
   C.   Conflicting, More Restrictive Provisions: This title shall not nullify the more restrictive provisions of covenants, agreements, resolutions, other ordinances, this code or other laws, but shall prevail notwithstanding such provisions which are less restrictive. (1977 Code § ZR-1-3)