N.C. Gen. Stat. § 160A-226: Determination of costs.

When the project is complete, the council shall ascertain the total cost. In addition to construction costs, the cost of all necessary legal services, the amount of interest paid during construction, costs of rights-of-way, and the costs of publication of notices and resolutions may be included. The determination of the council as to the total cost of any project shall be conclusive. (1915, c. 56, s. 9; C.S., s. 2711; 1971, c. 698, s. 1.)