Unincorporated Pottawattamie County, Iowa requires permits for regulated construction, including new homes, and inspects permitted work before approving occupancy123. The county also administers zoning, septic permits, private-well permits, floodplain development and county-road entrances45678.
At a glance
- Building permit
- Required for regulated construction in unincorporated areas, with listed exemptions1
- Inspections and occupancy
- Permitted work is inspected; new buildings need county approval before occupancy23
- Zoning
- Yes; rules vary among agricultural, residential, commercial and industrial districts49
- Septic permits
- Required for every new installation or repair through county Environmental Health105
- Owner-builder
- Allowed conditionally, but the owner still needs permits and inspections11
- RV camping
- Outside an RV park or commercial campground, temporary occupancy is limited to two weeks12
- Private well
- A county permit is required for a new or replacement well6
- Accessory dwelling unit
- County rules set a 260-square-foot minimum; state law also controls where and how an ADU may be built1314
Who to call
Building permits
Pottawattamie County Planning and Development
Zoning administration, building permits and inspections, and floodplain management for unincorporated Pottawattamie County
Courthouse, First Floor, 227 S 6th St, Suite 157, Council Bluffs, IA 51501
Septic permits
Pottawattamie County Environmental Health Services
Septic system permits and inspections, plus other environmental-health enforcement, for Pottawattamie County
Courthouse, First Floor, 227 S 6th St, Suite 157, Council Bluffs, IA 51501
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Pottawattamie County, Iowa?
Yes. Unincorporated Pottawattamie County has adopted building, residential, plumbing and related codes, and the Building Division enforces them15. A permit is required before regulated construction, enlargement, alteration, repair, moving, demolition, a change of occupancy, or regulated electrical, gas, mechanical or plumbing work begins1. Listed exceptions include certain one-story detached residential accessory buildings no larger than 200 square feet, fences, some retaining walls, sidewalks, driveways, patios and limited decks; an exempt deck may still need zoning approval1. Permitted work must stay exposed and accessible until the Building Official inspects and approves it2. A new building, structure or portion cannot be used or occupied until the Building Official issues a certificate of occupancy, although a temporary certificate may be possible for a safe portion before the entire project is complete3.
Who is the Pottawattamie County building department, and how do you reach it?
Pottawattamie County Planning and Development is the first stop for building permits, inspections, zoning and floodplain questions in unincorporated areas16. Its office is in the Courthouse, First Floor, 227 S 6th St, Suite 157, Council Bluffs, Iowa, and the main number is (712) 328-579216. Building-inspection requests have a separate line at (712) 328-584716. An owner may perform building, electrical, plumbing and mechanical work on an owner-occupied single-family dwelling or mobile home and its usual accessory buildings only after demonstrating capability to the inspector, securing the permits and signing the county's required liability agreement11. The owner must also plan to occupy the dwelling or mobile home for at least two more years, so the owner-builder provision is not a permit waiver or a shortcut for a speculative build11.
Does Pottawattamie County have zoning?
Yes. Pottawattamie County administers a comprehensive zoning ordinance in unincorporated territory4. The published ordinance groups districts into agricultural or conservation, residential, commercial and industrial classes, with district-specific rules governing uses, area, size, intensity and building height9. Height limits therefore depend on the parcel's district and proposed use; the ordinance allows a single-family or two-family dwelling up to 10 additional feet only when both side and rear yards increase by at least 10 feet, and the dwelling still cannot exceed three stories17. Iowa generally exempts qualifying agricultural land, farmhouses and buildings primarily adapted to agricultural use from county zoning, but that exception does not settle building, septic, driveway or floodplain permits18. Ask Planning and Development for the parcel's district and the standards that apply before choosing a house plan or building site16.
How do septic and well permits work in Pottawattamie County?
Pottawattamie County's Board of Health regulates onsite wastewater systems, and Environmental Health Services handles the local process1019. Every new septic installation or repair needs a permit; county inspectors evaluate the site and approve the design before issuing it5. Only about 30% of county soils rate free of severe limitations for a conventional drain field, so confirm site suitability before assuming a standard system will work20. Iowa also generally requires a private sewage system inspection before a qualifying property transfer, and that inspection remains valid for two years21. New and replacement private wells throughout Pottawattamie County require a well permit, including wells inside city limits, while repair, maintenance, rehabilitation or reconstruction of an existing well does not6. Environmental Health Services is at the courthouse office shared with Planning and Development and can be reached at (712) 328-579219.
Can you live in an RV or tiny home on your land in Pottawattamie County?
An RV outside a commercial campground or recreational vehicle park may be used for temporary occupancy for no more than two weeks in unincorporated Pottawattamie County; separate sleeping restrictions can apply in residential districts12. The reviewed county rules do not establish a complete rule for occupying a tiny home as its own category, so ask Planning and Development about the parcel's zoning district, proposed foundation and intended use416. For an accessory dwelling unit, the county ordinance specifies at least 260 square feet, while Iowa law requires counties to allow at least one accessory dwelling unit on a qualifying single-family lot and caps its size at 1,000 square feet or 50% of the main residence, whichever is larger1314. Those accessory-unit rules do not establish a countywide minimum size for every primary dwelling13.
Building a home in Pottawattamie County: the steps, in order
- Ask Planning and Development to identify the zoning district, dimensional standards and floodplain status for the proposed building site916.
- If floodplain development is involved, secure the county permit before filling, grading, paving, excavating, drilling, building or placing a factory-built home7.
- Arrange the Environmental Health site evaluation and septic design approval before applying for a new-system permit, and obtain a permit for any new or replacement private well56.
- Apply to the Building Official for the required construction and trade permits before work begins1.
- For a new or wider entrance on a county road, submit an Entrance Permit application and pay $100 before processing; construction must wait for the field inspection8.
- Keep permitted work accessible for county inspections, correct deficiencies and obtain the certificate of occupancy before using the new building23.
What should you check before buying land in Pottawattamie County?
Start with the exact zoning district, allowed use, setbacks and height rules rather than relying on a listing's description of the land917. Ask Environmental Health whether the site can support the planned septic system, because only about 30% of county soils rate free of severe limitations for a conventional drain field2019. Confirm whether a new or replacement private well will be needed and budget for its county permit6. Check floodplain status before grading or choosing a house pad, since a wide range of work requires approval before floodplain development begins7. For county-road frontage, a new or widened driveway needs an Entrance Permit, a $100 payment and a field inspection before construction; access to an Iowa primary highway instead goes through the Iowa DOT district permitting process822. Finally, do not treat an RV as indefinite interim housing: temporary occupancy outside a campground or RV park is capped at two weeks12.
Watch-outs
- A structure exempt from a building permit may still be subject to zoning, so confirm the parcel and project with Planning and Development before starting work116.
- The county's agricultural zoning exception does not by itself establish an exemption from building, septic, driveway or floodplain permits18.
- Off-grid sanitation and tiny-home occupancy remain unconfirmed; ask Environmental Health about wastewater and Planning and Development about the proposed dwelling before buying land1916.
Sources
- Chapter 10 Building Code, quoted and re-checked
- Chapter 10 Building Code, quoted and re-checked
- Chapter 10 Building Code, quoted and re-checked
- Pottawattamie County Zoning Ordinance (2026 county census)
- Septic Systems, quoted and re-checked
- Chapter 5.60 Nonpublic Water Supply Wells, quoted and re-checked
- Chapter 5.30 Flood Plain Management, quoted and re-checked
- Frequently Asked Questions, quoted and re-checked
- Chapter 8 Zoning Ordinance, quoted and re-checked
- Septic Systems, quoted and re-checked
- Chapter 10 Building Code, quoted and re-checked
- Chapter 8 Zoning Ordinance, quoted and re-checked
- Chapter 8 Zoning Ordinance, quoted and re-checked
- Senate File 2369 — Enrolled (Iowa statewide rule), quoted and re-checked
- Chapter 10 Building Code, quoted and re-checked
- Pottawattamie County Planning and Development (pottcounty-ia.gov)
- Chapter 8 Zoning Ordinance, quoted and re-checked
- Iowa Code 2026, Chapter 335 — County Zoning (Iowa statewide rule), quoted and re-checked
- Pottawattamie County Environmental Health Services (pottcounty-ia.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
- Access Management (Iowa statewide rule), quoted and re-checked
Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.