The applicant for a PUD is encouraged to informally present conceptual plans to both the Planning Commission and Municipal Council for review prior to extensive engineering. Plans may include the proposal to phase construction of the PUD development. Property proposed to be developed as a PUD must be rezoned to PUD; and the decision to approve a final development plan and to rezone a property to PUD are done concurrently. The PUD review process must satisfy all of the applicable requirements of Section 1123.02