The Commission shall then review the site plan to determine compliance with this Code and fulfillment of planning and design objectives. The Commission shall approve or disapprove within ninety (90) days of the date of the initial Commission meeting. If modifications are required, the applicant shall be notified of necessary modifications. The Commission shall have an additional thirty (30) days to approve or disapprove the site plan once the modifications have been resubmitted at the Planning Commission meeting. An extension of time may be taken if mutually agreed to in writing. In the case of U-11 uses, as hereinbefore set forth, preliminary site plan and final site plan approval shall be required from Council.