After the hearing, the city council may reject the report and abandon proceedings to form the benefit district, may approve the report as filed, or may modify and approve the report. The city council shall not increase the initial special development assessment in the report on file without the written consent of the affected owner unless it first holds a hearing on the increase after ten day notice by mail to the affected owner. If the city council approves the report, it shall adopt a resolution forming the benefit district and establishing the special development assessment in the amounts and under the terms set forth in the report. (Ord. 1826 NCS §1 (part), 1990.)