It is not intended by this chapter to repeal, abrogate, annul, other than as enumerated in § 208-106 herein, or interfere with any existing ordinance or enactment or with any rule, regulation or permit adopted or issued thereunder except insofar as the same may be inconsistent or in conflict with any of the provisions of this chapter, provided that where this chapter imposes greater restrictions upon the use of buildings or land, then the provisions of this chapter shall control.