Every permit, issued by the building official under the provision of the electrical code shall expire under any one of the following conditions:
1. Failure to begin work authorized within 180 days after issuance of the permit.
2. Suspension or abandonment of work for 120 days after commencement of the work. Time of occurrence of suspension or abandonment of work shall be computed from the date of the most recent inspection since which no progress has been made.
3. 3. Failure to complete work on a structure designed for residential uses within one year after issuance of a permit.
4. Failure to complete work on a structure designed for commercial or industrial uses within two years after issuance of a permit. For permits with a building valuation exceeding $10,000,000.00 work shall be completed within three years after issuance of a permit.
Any permitee holding an unexpired permit may apply for an extension of the time within which he or she may commence or continue work. The building official is authorized to grant, in writing, for periods not more than 180 days each, two extensions. The extension shall be requested in writing and justifiable cause demonstrated. Any of the extensions may be further extended by action of the City Council. In all cases, when a renewal is granted the structure for which the permit is required shall comply with code requirements in effect at the time the permit is renewed.