A master development plan shall be effective for a period of five (5) years, if platting of phases generally follows the approved schedule. Each phase of the phased subdivision shall be submitted to the city for review according to the requirements for submitting a final plat. The city shall review each subdivision phase and may make modifications to the approved plan if there have been changes in circumstances. "Changes in circumstances" shall mean unforeseen changes that have more than a minor impact upon the project and may involve changes to the site, development regulations, or the city's ability to provide public services. Approval of the master development plan shall not guarantee utility service availability. Any changes to the master development plan, whether initiated by the city or the applicant, shall be subject to review and approval in the same manner as the original approval, except that minor changes that do not affect the overall design, layout, or timing of the project may be approved by the city administrator. A change in the order of phases usually will not be considered a modification of the approval unless there is an effect upon the provision or availability of public services. (Ord. 673, 6-16-1998)