Such commission shall have and possess the following powers, and such other powers as may be incidental to the successful carrying out of the powers vested in it herein or such as may be expressly conferred upon it by law:
A. To make such surveys, studies, maps, plans or plats of the whole or any portion of the city and of any land outside thereof, which in the opinion of such commission bears relation to a comprehensive plan, and shall submit such plan to the council with its studies and recommendations and it may publish same.
B. To prepare a comprehensive plan regarding the height, number of stories and size of buildings and other structures; the percentage of ground that may be occupied; the size of yards, courts and other open spaces; the density of population; the location and use of buildings, structures and land for trade, industry, residence or other purposes and to this end shall prepare a preliminary report and hold public meetings thereon and after such meetings have been held to submit its final report and recommendations to the city council.
C. To recommend to the city council, from time to time as conditions require, amendments, supplements, changes or modifications in the comprehensive plan prepared by it.
D. To review and give its recommendation on (before approval by the city council) all plans, plats or replats of subdivisions or resubdivisions of land embraced in the city or adjacent thereto, laid out in lots or plats with the streets, alleys, or other portions of the same intended to be dedicated to the public, and all proposals for the vacation or partial vacation of a street, alley or public ground. (2008 Code § 22-6)