Cal. Sts. & High. Code § 11308

If assessments are to be levied as contemplated by Section 11202, then at the hearing the legislative body may change the boundaries of the proposed district by adding thereto land which in its opinion will be benefited by the establishment of the pedestrian mall or by excluding from the district lands which in its opinion will not be so benefited. If the legislative body proposes any such change, the notice, protest, and hearing procedures shall comply with Section 53753 of the Government Code.