If, at or prior to such meeting of the Commission, property owners of property located in the special assessment district whose property in the aggregate was assessed for more than 50% of the total assessed value of the privately owned real property located therein, in accordance with the last preceding general assessment roll or in case of paving or similar improvements, more than 50% of the amount of frontage to be assessed for any such improvement, shall object in writing to the proposed improvement, the improvement shall not be made by proceedings authorized by this chapter without an affirmative vote of five Commission members.
(1991 Code, § 1.176)