N.C. Gen. Stat. § 156-40: Confirmation of report.

If it appear that the lands on the lower level will be increased in value twenty-five percent (25%) or upwards by the proposed improvement, within one year after the completion thereof, and that the cost of making such improvement will not exceed three fourths of the present estimated value of the land to be benefited, and that the proprietors of at least one half in value of the land to be affected consent to the improvement, the court may confirm such report, either in full or with such modifications therein as shall be just and equitable. (1868-9, c. 164, s. 5; Code, s. 1314; Rev., s. 3999; C.S., s. 5298.)