No building permit shall be issued, and no construction, grading or other land development activity listed in this chapter may be commenced on property unless a site plan has been submitted and approved for such activity as set forth in this chapter. Development activities subject to the requirements of this chapter may hereafter be carried out only in substantial conformance with the approved site plan and any conditions or restrictions attached thereto. Material changes shall not be made to an approved site plan without the approval of the city. A permanent certificate of occupancy for a new development shall not be issued until all stormwater control, sanitary sewer, water mains, off street parking facilities and all other site plan requirements have been constructed and approved by the city, and are fully operational. (Ord. 52-09, 10-19-2009)