A. Road and utility transmission corridors, including electric, telephone, natural gas, television cable, water and sewer, may be constructed in and across the PMU district without an approved final plan, when approved by the city planner, as necessary to serve citywide or regional needs. All proposed road and utility transmission corridors in the PMU district intended solely to serve existing or future development in the PMU district shall be considered as part of an application for planned mixed use approval, and may not be considered pursuant to the authority of this section.

B. Temporary uses and structures, including those for which a grading, clearing or building permit is required may be approved by the city planner without an approved final plan upon a determination that structures can be removed and the area restored to its previous condition without altering the natural characteristics of the property or a significant feature thereof to an appreciable degree. Such temporary structures may be established as permanent features if included in the approved final plan.

C. All approvals under the provisions of this section may include conditions appropriate to ensure to the maximum extent possible that the use or structure approved does not create an impediment to the eventual development of the property to achieve the purposes and objectives of this chapter and do not impact any sensitive area (i.e., wetland, steep slope). Any proposal may be denied if it is found to create a significant impediment to the eventual development of the property or adversely impact environmentally sensitive areas to achieve the purposes and objectives of this chapter that cannot be mitigated by appropriate conditions.