12-2-8: PHASING OR SECTIONALIZING SUBDIVISIONS:
   A.   Permitted: Large developments may be phased or sectionalized, to be developed in portions periodically according to a proposed schedule. The developer shall indicate plans for phasing or sectionalizing at the time of application. The plans, subject to review and approval, shall show proposed phasing boundaries. Proposed interim or temporary solutions to sanitary sewer and water systems and to the handling of traffic on local streets, collectors and arterials within the subdivision, shall be shown on plans submitted along with a narrative description of assurance of completion of permanent system improvements.
   B.   Development Agreement: The development agreement for each subdivision must ensure that the dedication of public streets and improvements will occur according to the phasing plans, subject to conditions imposed by the city council during subdivision review. The city council may, in the interest of public safety and welfare, require that certain collector streets and arterials be dedicated and constructed in their entirety regardless of the phasing plan.
   C.   Guarantees: In approving a subdivision to be developed in phases, the city council may require that the development agreement indicate the phasing plans and that the amounts calculated for guarantees are commensurate with the phasing plan. The city council may require that the guarantee amount be that amount calculated for each phase and may defer the remaining amounts of the guarantee until the remaining sections of the subdivision are platted.
   D.   Phasing Plan: A phasing plan shall coordinate required infrastructure systems, dedications, off site improvements, open space/parks, landscaping, private utilities, or other elements of a subdivision. The plan may indicate times or triggering mechanisms for improvements. Agreements between the developer and the city concerning the acceleration or deceleration of development of the subdivision may be included in the development agreement. Provisions of a development agreement shall endeavor to the greatest extent possible to tie together the contingencies of development of a phased project. (2003 Code § 12-03-08)