The variance application may be filed at any time prior to expiration of a preliminary approved land division. When a variance application is made prior to the granting of preliminary approval, the time limit for approval of a preliminary land division specified in this title shall be suspended pending conclusive action on the variance. The applicant is responsible for demonstrating that the variance request satisfies all of the criteria set forth in CCC 29.40.500. Variance applications are encouraged to be applied for and processed with the associated land division application.