In their interpretation and application, the provisions of this chapter shall be held to be minimum requirements. Nothing in this chapter shall repeal or amend any ordinance of the county requiring a permit or a license, or both, to cover any business. The provisions of this chapter are not intended to impair or interfere with any existing easement, covenant or other agreement between parties; provided, however, that where this chapter imposes a greater restriction upon the use of buildings or premises, or upon the height or bulk of buildings and structures, or requires larger building sites, yards or other open spaces, than are imposed by any other law, ordinance, easement or agreement, then the provisions of this chapter shall control. (Prior gen. code § 8-19.3)