In interpreting and applying the provisions of this chapter, they shall be held to be the minimum requirements for the promotion of the health, safety, morals or general welfare. It is not intended by this chapter to repeal, abrogate, annul or in any way to impair or interfere with any existing provisions of law or ordinances or any rules or regulations previously adopted pursuant to law relating to the use of building or premises; nor is it intended by this chapter to interfere with or abrogate or annul any easement or covenants between parties; provided, however, that, where this chapter imposes a greater restriction upon the use of buildings or premises than are imposed by such existing provisions of law or ordinance or by such rules or regulations or by such easements, covenants or agreements, the provisions of this chapter shall control.
(1998 Code, App. A, § 40-84)