All provisions and all amendments thereto adopted pursuant to this article shall be based on and interpreted in relation to the statement of community development objectives of the zoning ordinance and may be related to either the comprehensive plan for the development of the municipality prepared under the provisions of this act or a statement of legislative findings in accordance with section 606. Every application for approval of a planned residential development either shall be based on and interpreted in relation to the statement of community development objectives, and may be related to the comprehensive plan, or shall be based on and interpreted in relation to the statement of legislative findings.
53 P.S. § 10703