The provisions of this chapter shall be held to be the minimum requirements adopted for the promotion of the public health, safety, comfort, convenience and general welfare. It is not intended by this chapter to repeal, abrogate, annul or in any way to impair and interfere with any existing provisions of the law or of any ordinance other than prior zoning ordinances or any rules, regulations or permits previously adopted or issued, or which shall be adopted or issued pursuant to law relating to the use of buildings or premises. Any restrictions or requirements with respect to buildings or land or both which appear in other ordinances of the Borough of Allentown, except existing zoning ordinances established by law and which are more restrictive than those set forth in this chapter shall take precedence over those herein.

It is not intended by this chapter to interfere with or abrogate or annul any easements, covenants or other agreements between parties. However, where this chapter imposes a greater restriction upon the use of a building or premises or upon the height of the building or requires larger yards, or other open spaces than is imposed or required by existing provisions of law or ordinances or by any rule, regulation or permit or by such easements, covenants or agreements, the provisions of this chapter shall control.