A building, structure or part thereof which does not conform to the regulations for the district in which it is situated, but for which a building permit was issued prior to the enactment of the ordinance codified in this chapter may be completed providing work is prosecuted continuously and without delay. Such building, structure or part thereof shall be deemed to be a nonconforming use and shall thereafter by subject to the restrictions set forth herein. (Ord. 2764 § 3 (Exh. A), 2021.)