The applicant may apply for a modification of the approved subdivision performance agreement following the Type II process. The planning director shall approve the request only if it complies with the following criteria:
(1) The proposed modification is consistent with the conditions of the original approval.
(2) The proposed modification will result in insignificant changes in the physical appearance of the development, the use of the site, and impact on the surrounding properties.
If the planning director determines that the proposed modification is not consistent with the above criteria, the proposed modification may not occur. Nothing in this section shall preclude the applicant from initially submitting the requested modification as a new subdivision tentative plan application.