The Staff Advisor shall grant a timetable extension of any zoning permit or planning action approval under demonstrated compliance with all of the following conditions:
A. One time extension no longer than 24 months is allowed.
B. The Staff Advisor shall find that a change of conditions for which the applicant was not responsible prevented the applicant from completing the development within the original time limitation.
C. Land Use Ordinance requirements applicable to the development have not changed since the original approval. An extension may be granted, however, if requirements have changed and there is no material effect upon the original approval, and the applicant agrees to comply with any new requirements, as a condition of the extension.