Appeals, modifications and variances. Modifications to the amount of open space, setbacks, minimum lot area and other design and supplemental standards for an AAC, OSC or PUD are not subject to variance approval by the Zoning Board of Appeals; such modifications shall be processed as a major or minor change as described herein. As an exception, once a home has been occupied, an individual homeowner may request a dimensional variance from the Zoning Board of Appeals as outlined in Article 41, Zoning Board of Appeals, provided the common open space and other conditions of approval are not affected.