After 6-22-1944, no subdivision, whether by plat, metes and bounds, or other division by the County Assessor or County Clerk affecting land within the corporate limits of the city or in contiguous unincorporated territory outside of and distant not more than one and one-half miles from such limits, shall be legal, nor shall such subdivision or division however made, be entitled to record, nor shall it be valid unless the subdivision shown thereon shall have been drawn in the form of a plat, based upon survey made by a registered state land surveyor, which plat shall provide for streets, alleys and public grounds in conformity with the requirements applicable thereto in the official plan of the city.
(Prior Code, § 154.49)