Ohio Revised Code Title LI. Public Welfare § 5119.341

(A) Any person may operate a residential facility providing accommodations and personal care services for one to five unrelated persons and licensed as a residential facility that meets the criteria specified in division (B)(1)(b) of section 5119.34 of the Revised Code as a permitted use in any residential district or zone, including any single-family residential district or zone of any political subdivision. Such facilities may be required to comply with area, height, yard, and architectural compatibility requirements that are uniformly imposed upon all single-family residences within the district or zone.

(B) Any person may operate a residential facility providing accommodations and personal care services for six to sixteen persons and licensed as a residential facility that meets the criteria specified in division (B)(1)(b) of section 5119.34 of the Revised Code as a permitted use in any multiple-family residential district or zone of any political subdivision, except that a political subdivision that has enacted a zoning ordinance or resolution establishing planned-unit developments as defined in section 519.021 of the Revised Code may exclude such facilities from such districts, and a political subdivision that has enacted a zoning ordinance or resolution may regulate such facilities in multiple-family residential districts or zones as a conditionally permitted use or special exception, in either case, under reasonable and specific standards and conditions set out in the zoning ordinance or resolution to:

(C) Divisions (A) and (B) of this section do not affect any right of a political subdivision to permit a person to operate a residential facility licensed under section 5119.34 of the Revised Code in a single-family residential district or zone under conditions established by the political subdivision.