Before any part of a PD subdivision may be reflected in a Record Plan and recorded, the improvements and uses previously described in an approved General Plan must be merged and detailed in a Final Development Plan. No Final Development Plan shall be considered or approved without formal approval by City Council of the General Plan. Once these approvals have been received, the owner may seek approval for a Final Development Plan for the overall PD or for a phase or phases of the PD. The Final Development Plan shall show all of those items required in the General Plan as well as any additional information requested by the Planning Commission or City Council.