The Planning Commission shall, after at least ten days’ prior notice duly given, hold a public hearing on each variance application, and shall hear all persons interested in the application and may continue the hearing for the taking of additional evidence. The variance may be revocable, may be granted for a limited period of time, may be granted subject to such conditions as the Planning Commission may prescribe, or may be denied. The Planning Commission shall not grant any variance application with reference to any building, structure, land or premises not described in the application. Such action shall be by resolution of the Planning Commission. The Planning Commission shall not grant any application unless it is found that each one of the mandatory findings for the granting of the variance set forth in Section 19.84.010 are in fact true. (Ord. 89-1 § 1, 1989.)