(2) If assessments are to be levied as contemplated by ORS 376.735, then if the owners of more than 10 percent of the area of land included within the district described in the resolution of intention and subject to assessment have made written objection to the establishment of the proposed pedestrian mall, the legislative body shall so find and in that event the legislative body may continue with proceedings for the establishment of the pedestrian mall but shall have no power to make any assessment upon benefited property to pay damages. In such event no proceeding under ORS 376.705 to 376.825 for the levy of assessments upon benefited property to pay damages in connection with the establishment of the same or substantially the same pedestrian mall shall be commenced within one year after such finding. [1961 c.666 §§16,17]