(a) Phasing. Where a project is proposed for construction in phases, each phase, upon completion, shall be capable of standing on its own in terms of services, facilities and open space, and shall contain the necessary components to ensure protection of natural resources and the health, safety and welfare of the users of the planned unit development (PUD) and the residents of the surrounding area. In addition, in developments which include residential and nonresidential uses, the relative mix of uses and the scheduled completion of construction for each phase shall be disclosed and determined to be reasonable in the discretion of the City Council after recommendation from the Planning Commission.
(b) Commencement and Completion of Construction. Construction shall be commenced within one (1) year following final approval of a PUD. Each phase of the project shall be commenced within one (1) year of the schedule established for the same in the application submitted. If construction is not commenced within such time, any approval of a site plan on the project shall expire and be null and void. However, an extension for a specified period may be granted by the City Council upon good cause shown if such request is made prior to the expiration of the initial period. Moreover, in the event a site plan has expired, the City shall be authorized to rezone the property in any reasonable manner, and, if the property remains classified as PUD, a new application shall be required and shall be reviewed in light of then existing and applicable law and ordinance provisions.