Building permits, zoning and land rules in Greene County, Iowa

A general Greene County building-permit requirement for an ordinary private home could not be confirmed from the county material, so contact Greene County Planning and Zoning before starting work². Iowa does not impose one universal building-permit requirement on every private building statewide; local governments administer permits and enforcement under applicable local law, while the state code reaches specified categories of construction⁷. State plan review and inspection apply to specified state-owned, state-board-of-regents and state-funded buildings, not automatically to every privately owned rural home⁷. A certificate of occupancy is likewise required only when an applicable ordinance calls for one, and no general Greene County requirement was confirmed^2,7. The practical first step is to give Planning and Zoning the parcel location, proposed use and structure type and ask which zoning certificate, permit, inspection or closeout document applies².

Greene County does not identify a separate building department on the official county material reviewed, so start with Greene County Planning and Zoning for unincorporated-land questions at 515-386-5669 or zoning@greenecounty.iowa.gov². The office is in the Auditor’s Office on the second floor at 114 N. Chestnut Street, Jefferson, IA 50129². Greene County Environmental Health uses the same courthouse address and phone for well and septic permits; email sanitarian@greenecounty.iowa.gov³. For questions about a proposed entrance, roadside ditch or county road, call the Greene County Engineer’s Office at 515-386-5650⁸. The county page says Planning and Zoning keeps floodplain maps for reference, so include a floodplain-map check when discussing a prospective building site with that office².

Yes. Greene County zoning applies to unincorporated Greene County, and the Board of Supervisors updated the zoning ordinance in 2022². Iowa gives counties optional zoning authority outside incorporated city limits and allows standards to differ by district⁹. Greene County setbacks vary by zoning district, lot type, use and special regulations, so a setback from one parcel should not be assumed to apply to another⁶. Iowa law generally makes county zoning inapplicable to qualifying agricultural land, farmhouses, farm barns, farm outbuildings and other structures primarily adapted to agricultural purposes while so used, although floodplain regulation can still apply⁹. The ordinance sets six districts, from Agriculture and Residence to Conservation and Mineral Extraction, so confirm which one covers the parcel¹. No building may exceed four stories or 50 feet unless it is set back one foot from every required yard line for each added foot of height¹. A lot with a residence must abut a street for at least 40 feet or have an exclusive private access easement at least 20 feet wide, with one single-family dwelling per frontage or easement¹. If land will be divided, Greene County regulates subdivisions and resubdivisions in unincorporated areas, with a subdivision defined to include division into 3 or more lots or other divisions for ownership transfer or building development¹⁰.

Greene County Environmental Health administers private sewage disposal permits and related environmental-health programs, with the Greene County Board of Health responsible for interpreting, monitoring and enforcing the county private-well and private-sewage ordinance³. A site evaluation comes before the septic construction permit is issued, and the county inspects a new system before it is backfilled¹¹. The county publishes a $150 septic-system permit fee and a $125 well-construction permit fee³. Iowa requires county boards of health to regulate private water supplies and private sewage facilities within their jurisdiction, while the Iowa Department of Natural Resources retains concurrent authority and regulates direct discharges to state waters¹². Only about 21.1% of Greene County soils are rated without severe limitations for a conventional septic drain field, so obtain site-specific feasibility work before fixing the house location or assuming a conventional system will fit¹³. Iowa generally requires an inspection before a qualifying transfer of a building served by a private sewage system; statutory exceptions apply, and an inspection is valid for 2 years¹².

Greene County defines a camping ground as land used exclusively by tents, trailers, mobile homes or other mobile living facilities for no more than 4 weeks, and lists camping grounds as a permitted use in the Agriculture District subject to other district and permit rules⁶. That camping-ground provision does not confirm that long-term or permanent RV occupancy is allowed on an individual private parcel, so ask Planning and Zoning about the parcel, zoning district, duration and utility plan before placing or occupying an RV². Unincorporated Greene County does not allow an accessory building to be used as a separate dwelling, with an exception for domestic servants employed entirely on the premises, so a tiny home cannot simply replace a shed or barn as housing¹. A specific Greene County tiny-home occupancy rule and a general minimum dwelling size also could not be confirmed, so take the proposed dimensions, foundation and sanitation plan to Planning and Zoning². A manufactured home has a clearer statewide rule: Greene County cannot reject a proposed residence solely because it is manufactured, but the home may be held to the same permanent-foundation, setback and minimum-square-footage standards as a site-built single-family home on the same lot⁹.

1. Call Greene County Planning and Zoning at 515-386-5669 with the parcel location, proposed use and structure type; ask which zoning approval, building permit, inspection and occupancy document apply².

1. Confirm the zoning district and parcel-specific setbacks before commissioning final plans^2,6.

1. Contact Greene County Environmental Health for septic feasibility and the $150 septic permit, and discuss a private well and its $125 permit if public water is unavailable³.

1. Ask Planning and Zoning to review the county floodplain maps and explain any floodplain approval needed for the site².

1. Contact the County Engineer’s Office before creating or changing access from a county road, because the published county material does not confirm the permit rule for a new private entrance⁸.

1. Before occupancy, confirm any required inspections or completion documents with Planning and Zoning because no general county requirement was confirmed².

Confirm the parcel’s zoning district, allowed use and setbacks with Greene County Planning and Zoning before closing^2,6. Order septic feasibility work early because only about 21.1% of county soils are rated without severe limitations for a conventional drain field, even though about 97.6% of the county has a slope of 15% or less¹³. Ask Planning and Zoning to review its floodplain maps, and verify legal and physical road access with the County Engineer’s Office^2,8. If a split is contemplated, determine whether Greene County subdivision review applies before relying on a proposed lot layout¹⁰. For carrying costs, Greene County’s effective property-tax rate is about 1.2%, the median property-tax bill is about $1,682 per year, and a typical home-insurance premium is about $1,678 per year¹³.