Ohio Rev. Code Ann. § 711.01

Any person may lay out a village, or subdivision or addition to a municipal corporation, by causing the territory to be surveyed, and by having a plat of it made by a competent surveyor. The plat shall particularly describe the streets, alleys, commons, or public grounds, and all in-lots, out-lots, fractional-lots, within or adjacent to such village. The description shall include the courses, boundaries, and extent.