The provisions of this Zoning Code shall be held to be the minimum requirements for the promotion of the public safety, health, convenience, comfort, prosperity and general welfare. It is not intended that this Zoning Code interfere with, abrogate, annul or repeal ordinances, rules or regulations previously adopted and not in conflict with this Zoning Code, or which shall be adopted, pursuant to law, relating to the use of buildings or premises, or interfere with, abrogate or annul easements, covenants or other agreements between parties. Where this Zoning Code imposes a greater restriction upon the use of land, buildings or premises, or upon the height of buildings, or requires larger open spaces than are imposed or required by such other ordinances, easements, covenants or agreements, the provisions of this Zoning Code shall control.