For so long as the special exception, special use permit, or conditional use permit remains valid, no change or amendment to any local ordinance, map, resolution, rule, regulation, policy, or plan adopted subsequent to the date of approval of the special exception, special use permit, or conditional use permit shall adversely affect the right of the developer or his successor in interest to commence and complete an approved development in accordance with the lawful terms of the special exception, special use permit, or conditional use permit unless the change or amendment is required to comply with state law or there has been a mistake, fraud, or a change in circumstances substantially affecting the public health, safety, or welfare.
Application for minor modifications to special exceptions, special use permits, or conditional use permits made during the period of validity shall not constitute a waiver of the provisions hereof nor shall the approval of minor modifications extend the period of validity of such plats or plans.
Va. Code § 15.2-2209.1:2