Zoning permits issued for the purpose of permitting, construction, reconstruction, alterations, repairs, use or the like shall automatically expire 12 months from the date of issue. Prior to the continuance of the activity, use or change for which the original permit was used, a new zoning permit must be obtained. If, however, the construction, alteration, reconstruction, repairing, use or the like has been proceeding in a constant and regular manner and that, due to the extent and size of the subject project, it is impossible for the applicant to complete said process prior to the expiration of 12 months or because of an act of nature, no new permit must be obtained. However, the applicant must advise the Zoning Officer of said expiration and advise as to the reason for failure to complete within the specified time period. In the event said applicant fails to notify the Zoning Officer of said failure to complete, then said permit shall immediately expire and no further activity may take place unless a new permit is obtained.