(A) Upon adoption of a resolution by affirmative vote of 7 members of the Council as provided in § 150.04 hereof, or following receipt of a valid petition as provided in § 150.03 hereof followed by an affirmative vote of a majority of the Council electing to initiate proceedings for the establishment of a special assessment district improvement, the Council shall determine the lands and premises proposed to be included in the special assessment district, and shall cause to be prepared and submitted to the City Council:
(1) A map or drawing showing the route or location of the proposed improvement and the proposed special assessment district;
(2) Preliminary plans for the proposed improvement; and
(3) An estimate of the cost thereof.
(B) Upon the submission of the above mentioned map or drawing, preliminary plans, and cost estimate, the Council shall, if it desires to proceed with the making of the improvement and the special assessments therefor, so declare by resolution. The Council, by this resolution, shall order the aforementioned map or drawing, preliminary plans, and cost estimate to be filed in the office of the City Clerk for public examination, shall determine the necessity of the improvement, shall state the estimated cost thereof, and shall designate the district or land and premises upon which the special assessments shall be levied.