(A) Permit time limit. Each permit shall have stated on its face the period of time for which it is valid. Notwithstanding such statement, an application for a permit for any proposed work shall be deemed to have been abandoned six months after date of filing, unless such application has been diligently prosecuted or a permit shall have been issued; except that for reasonable cause, the Chief Building Official may grant not more than two extensions of time for additional periods at six months each. Any permit shall become invalid if authorized work remains uninitiated, or is suspended, postponed, or abandoned throughout any six-month period.
(B) Permit renewal. When a permit has expired by limitation it may be renewed by the submission of a letter stating reasons for one six-month renewal period.
(C) Second permit renewal. If a second renewal is desired, another letter stating reasons must be submitted and a fee paid, as required by the permit fee schedule.
(‘74 Code, § 150.27)