Any permit issued shall become invalid unless the work authorized by it shall have been commenced within six months after its issuance or if the work authorized by such permit is suspended or abandoned for a period of six months after the time the work is commenced; provided that, for cause, one or more extensions of time for periods not exceeding 90 days each may be allowed in writing by the Chief Building Official; but in no event shall such extensions exceed one year. Permits for accessory structures less than 200 square feet in area, and trade permits not associated with a building permit shall expire unless the work authorized by such permit is commenced within 90 days after issuance. Whoever violates this provision shall be subject to forfeiture of the construction deposit. When the permit has expired and the work is left in a hazardous condition, the Chief Building Official may proceed in accordance with Chapter 1345. When the permit has expired and the work is unfinished with regard to the exterior premises, the premises shall be considered a public nuisance and maintenance of the premises enforced in accordance with Chapter 1349, Nuisances. Alternate enforcement methods in other portions of this code shall remain available.
(1969 Code 151.47)