(a) The commissioners court of a county or the court's designee may delegate to one or more officers or employees of the county the ability to approve, approve with conditions, or disapprove a plat that:
(1) is amending a plat under Section 232.011; or
(2) involves four or fewer lots that each meet the requirements under Section 232.204(c).
(b) An applicant has the right to appeal to the commissioners court or the court's designee if the designated person disapproves a plat.