(1) The county board shall have power: (a) To create a planning commission with the powers and duties set forth in sections 23-114 to 23-114.05, 23-168.01 to 23-168.04, 23-172 to 23-174, 23-174.02, 23-373, and 23-376; (b) to make, adopt, amend, extend, and implement a county comprehensive development plan; and (c) to adopt a zoning resolution, which shall have the force and effect of law.
(2) The zoning resolution may regulate and restrict: (a) The location, height, bulk, number of stories, and size of buildings and other structures, including tents, cabins, house trailers, and automobile trailers; (b) the percentage of lot areas which may be occupied; (c) building setback lines; (d) sizes of yards, courts, and other open spaces; (e) the density of population; (f) the uses of buildings; and (g) the uses of land for agriculture, forestry, recreation, residence, industry, and trade, after considering factors relating to soil conservation, water supply conservation, surface water drainage and removal, or other uses in the unincorporated area of the county.
(3)(a) The county board shall not adopt or enforce any zoning resolution or regulation which prohibits the use of land for a proposed residential structure for the sole reason that the proposed structure is a manufactured home if such manufactured home bears an appropriate seal which indicates that it was constructed in accordance with the standards of the Department of Health and Human Services Regulation and Licensure or the United States Department of Housing and Urban Development. The county board may require that a manufactured home be located and installed according to the same standards for foundation system, permanent utility connections, setback, and minimum square footage which would apply to a
site-built, single-family dwelling on the same lot. The county board may also require that manufactured homes meet the following standards: (i) The home shall have no less than nine hundred square feet of floor area; (ii) The home shall have no less than an eighteen-foot exterior width; (iii) The roof shall be pitched with a minimum vertical rise of two and one-half inches for each twelve inches of horizontal run; (iv) The exterior material shall be of a color, material, and scale comparable with those existing in residential site-built, single-family construction; (v) The home shall have a nonreflective roof material which is or simulates asphalt or wood shingles, tile, or rock; and (vi) The home shall have wheels, axles, transporting lights, and removable towing apparatus removed. (b) The county board may not require additional standards unless such standards are uniformly applied to all single-family dwellings in the zoning district. (c) Nothing in this subsection shall be deemed to supersede any valid restrictive covenants of record.
(4) For purposes of this section, manufactured home shall mean (a) a factory-built structure which is to be used as a place for human habitation, which is not constructed or equipped with a permanent hitch or other device allowing it to be moved other than to a permanent site, which does not have permanently attached to its body or frame any wheels or axles, and which bears a label certifying that it was built in compliance with National Manufactured Home Construction and Safety Standards, 24 C.F.R. 3280 et seq., promulgated by the United States Department of Housing and Urban Development, or (b) a modular housing unit as defined in section 71-1557 bearing the seal of the Department of Health and Human Services Regulation and Licensure.
(5) Special districts or zones may be established in those areas subject to seasonal
or periodic flooding, and such regulations may be applied as will minimize danger to life and property.
(6) The powers conferred by this section shall not be exercised within the limits of any incorporated city or village nor within the area over which a city or village has been granted zoning jurisdiction and is exercising such jurisdiction. At such time as a city or village exercises control over an unincorporated area by the adoption or amendment of a zoning ordinance, the ordinance or amendment shall supersede any resolution or regulation of the county.
