The provisions of this Zoning Code, for purposes of interpretation and application, shall be held to be the minimum requirements adopted for the promotion of the public health, safety, comfort, convenience and general welfare. The lot or yard areas required by this Zoning Code for a particular building shall not be diminished and shall not be included as a part of the required lot or yard areas of any other building. The lot or yard areas of buildings existing on June 6, 1949, shall not be diminished below the requirements herein provided for buildings hereafter erected, and such required areas shall not be included as a part of the required areas of any building hereafter erected. This Zoning Code shall not repeal, abrogate, annul or in any way impair or interfere with any existing provisions of law or ordinance or any rules or regulations previously adopted or issued or which shall be adopted or issued pursuant to law relating to the use of buildings or premises. However, when this Zoning Code imposes a greater restriction upon the use of buildings or premises or upon the height of buildings or requires larger lots or yards than are imposed or required by such existing provisions of law or ordinance or by such rules and regulations, the provisions of this Zoning Code shall control.
(1956 Code Sec. 1313.02)