Upon completion of the project, or any stage thereof, for which the developer shall seek a certificate of occupancy or other certificate certifying satisfactory completion of the project, or portion thereof, the developer shall submit a certificate of his registered architect or licensed engineer, in form satisfactory to the Planning Board, that the completed project, or portion thereof, substantially conforms to the plans therefor approved by the Planning Board. Upon receipt of such certification and based upon the reports of appropriate Town officials, the Planning Board shall issue a certificate certifying the completion of the planned development, and the Clerk of the Planning Board shall note the issuance of the certificate on the recorded final development plan.