If any substantial modification is proposed or required after preliminary approval has been granted, an application for such a modification shall be submitted and proceeded upon as in the case of the original application for development. The applicant may apply for modification approval either independently of or concurrently with an application for final approval. In either case, notice pursuant to this chapter and N.J.S.A. 40:55D-1 et seq. shall be required and shall state the nature of the proposed modification. A substantial modification shall mean one which: increases density of development; increases the square footage of buildings; proposes a different use; would result in increased adverse impact upon properties in the immediate area with respect to factors such as, but not limited to, noise, glare, and increased drainage runoff; or materially changes a required element of the development plan. Any modification which decreases the number of proposed lots, dwelling units, number of square feet, density or intensity of use shall not be considered a substantial modification so long as there is no proposed change of use and no additional variances or exceptions are required.