B. Notwithstanding subsection A of this section, the municipality may extend the time frame to approve or deny the request beyond one hundred eighty days for either of the following reasons:
1. For extenuating circumstances, the municipality may grant a onetime extension of not more than thirty days.
2. If an applicant requests an extension, the municipality may grant extensions of thirty days for each extension granted.
C. This section does not apply to land that is designated as a district of historical significance pursuant to section 9-462.01, subsection A, paragraph 10 or an area that is designated as historic on the national register of historic places or planned area developments.