(a) An owner of property who is aggrieved by an action or order adopted by the board of building line adjustment may appeal to the commissioners court. The person must bring the appeal within 30 days after the date the action or order was adopted.
(b) A property owner in the county who is aggrieved by a final order of the board or of the commissioners court may appeal to the district court or to another court with proper jurisdiction. The appellant must bring the appeal within 30 days after the date on which the final order in question was adopted. The appellant must execute an appeal bond in an amount fixed by the court.