A building, structure, or part thereof which does not conform to the regulations for the zone in which it is situated, but for which a building permit was issued and construction started prior to the enactment of the ordinance codified in this title, may be completed in accordance with such plans providing work is prosecuted continuously and without delay. Such buildings shall be deemed to be nonconforming and shall be subject to the regulations set forth herein. [Ord. 08-17-2021B § 2 (Exh. A)].