The Council shall by ordinance provide regulations governing the platting of all lands so as to require all streets to be of proper width, grade, and location and to be coterminus with adjoining streets, and otherwise to conform to the City plan. No plat subdividing lands within the corporate limits, or within such distance thereof as may be provided from time to time by State law, shall be entitled to be recorded in the recording office of the County without the written approval of the City Planning Commission. Such approval shall be given for any plat which shall conform to the regulations provided by Council. Any land outside the corporate limits of the City belonging to the City shall be deemed to be within such limits insofar as the application of the provisions of this section are concerned.