After the public hearing, the Council shall either approve, approve with supplementary conditions, or disapprove the application as submitted. If the application is approved as submitted or approved with conditions, the Council shall direct the Zoning Administrator to issue zoning permits in accordance with the approved plan and any conditions thereto attached. The final development plan shall further be considered as an integral part of the rezoning amendment, and no change from or substantive alteration in such Residential Planned Unit Development shall be permitted without repetition of the general procedures in these Sections. In the event that the Council deny or substantively modify the final development plan as recommended by the Commission, any resulting final development plan for said Residential Planned Unit Development shall not be effective unless passed or approved by three-fourths (3/4) of Council.