This ordinance (Zoning 300) is not intended to repeal, abrogate, or annul any applicable law, ordinance, rule, regulation or permit previously adopted or issued pursuant to the laws or ordinances relating to the use of buildings or land, covenants or other agreements between parties, except that this ordinance supersedes the Addison Township Zoning Ordinance 200, enacted June 1988 and Addison Township Zoning Ordinance 100 enacted January 4, 1973, as amended. Provided, however, that where any provisions of this ordinance impose more stringent limitations on such use of land or upon land area or building requirements, this ordinance shall govern. Requirements of this ordinance shall not impair or affect those covenants, easements, agreements or restrictions imposing greater limitations.