A Mixed Use Overlay District shall be established in accordance with procedures for a zoning amendment as set forth in Chapter 1135, Amendments. The boundaries of the Mixed Use Overlay District shall be indicated on the Official Zoning Map and shall be officially denoted as MX. In the Mixed Use Overlay District, applications shall be reviewed and acted upon as follows:
(a) A General Development Concept shall be reviewed and acted upon simultaneously with the zoning amendment necessary to effectuate the Mixed Use Overlay District.
(b) After approval of the General Development Concept, development plans shall be reviewed and acted upon according to Chapter 1127, Development Plan Review Procedures.
(c) After approval of a General Development Concept by the City Council, the Planning Commission shall approve all development plans provided the Planning Commission determines that the development plan substantially complies with all specific requirements, the purposes, intent and basic objectives of the General Development Concept, and any commitments made or conditions agreed to with the approval of the General Development Concept.