Iowa County, Iowa Building Permit Guide

Unincorporated Iowa County has no county building permit and no countywide zoning: the county says land is unzoned unless it lies within two miles of a city limit or inside the Amana Land Use District. What the county does require comes through its online Pre-Construction Application: a $300 septic permit from Environmental Health (319-642-3923), a $50 entrance permit and any floodplain development permit from the County Engineer, and a 911 address, with blueprints sent to the Assessor at least 30 days before construction.

What requires a permit in unincorporated Iowa County?

The county’s ordinance list, numbered 1 to 44, includes no building code, so houses and outbuildings in the countryside are not plan-reviewed or inspected by a county building official. The permits that do apply depend on the site rather than the structure.

Three kinds of land carry extra rules. Within two miles of a city limit, the county says the city must be notified; inside the Amana Land Use District, the district must be. Airport zoning applies in the Lenox area near the Eastern Iowa Airport (Ordinance 16) and in the agricultural areas of Greene and Iowa townships near the Belle Plaine Airport (Ordinance 10). The floodplain ordinance (Ordinance 36) covers Zone A of the flood map kept at the County Engineer’s office.

What Iowa County decides and what the state holds

The Board of Supervisors has not adopted a county building code, so the state building code is not enforced by the county outside cities; the statewide energy, fire, plumbing, mechanical and electrical rules still apply to the work. None of the county’s ordinances sets up an electrical inspection program, and where no local program exists the state (DIAL) issues electrical permits. The county’s own rules cover septic and wells (Ordinance 37), subdivisions (Ordinance 14), wind energy systems (Ordinance 32), rural addressing (Ordinances 8 and 11), roads and right of way, airport height limits and floodplain management.

Iowa County building department: who handles permitting

There is no single county permit office. Environmental Health, governed by the Iowa County Board of Health and led by Environmental Director Sherry Lutz, issues septic and well permits; the County Engineer, Nicholas Amelon, P.E., runs Secondary Roads and its entrance, right-of-way and floodplain permits; the 911 Coordinator assigns rural addresses.

Cities in Iowa County

Each incorporated city sets and handles its own building and zoning permits inside its limits, and some are split with neighboring counties.

The Amana Colonies are not a city; their land use is governed by the Amana Land Use District, which holds its own elections.

Iowa County permit types

The Pre-Construction Application is the county’s intake form for a new residence or other building in the unincorporated area. It asks for the site address or parcel number, the structure and the number of bedrooms, and whether a driveway application, a 911 address and a septic system are needed, and it takes blueprint uploads for the Assessor’s Office. Owners who only need a 911 address use a separate request form.

Residential permits

For a new rural house, the county-issued permits are the septic permit, the entrance permit for the driveway and the 911 address; a floodplain development permit is added if the site is in Zone A. If a required septic permit is not bought or the system is installed without a permit or inspections, the county charges additional fees and fines. The blueprints uploaded with the form go to the Assessor’s Office.

Building or remodeling a home here? Alliance handles residential permit applications, so the crew isn't waiting on the counter.

Commercial permits

Commercial and farm buildings in the unincorporated county also have no county building permit. A commercial building with plumbing still needs an approved septic system, any new access onto a county road needs an entrance or access permit, and tall structures near the two airports fall under the airport zoning ordinances. Since July 31, 2026, applications of any kind for data centers in the unincorporated county are on hold under the supervisors’ 12-month moratorium.

For tenant improvements and new commercial builds, Alliance handles commercial building permits through issuance. More on this: commercial building permits explained.

What comes before construction

• City and district review. Within two miles of a city limit the city must be notified, and inside the Amana Land Use District the district must be.
• Septic and wells. The septic permit ($300) comes before construction; new wells are arranged through Environmental Health, which also runs well plugging grants and free well water tests.
• Entrances. The $50 entrance and driveway permit must be paid and a field inspection completed before work starts.
• Floodplain. The Engineer’s office keeps the flood map and the floodplain development application.
• Subdivisions. Dividing land follows the county’s subdivision design ordinance.

Iowa County permit costs and fees

Because the county issues no building permit, there is no county valuation-based building fee. The fees it does publish are flat amounts on its departments’ pages.

For a typical new house on an unsewered rural lot with a new driveway, the county charges come to $350: $300 for the septic permit and $50 for the entrance permit. Septic design and installation, the well and any city or state permits are separate costs. Whether an entrance is a dry fill or needs a culvert, and the culvert’s length and diameter, are set by the county inspector on the permit.

Trade permits and who may pull them

• Septic installers: anyone installing or repairing a septic system in Iowa County, homeowners included, must be CIOWTS certified and carry a $20,000 bond with the Iowa County Board of Health.
• Well plugging: must be done by a certified well plugger for the grant to pay.
• Electrical: the county’s ordinances create no electrical inspection program, so electrical permits and inspections for unincorporated sites come from the state (DIAL) through its online system, filed by state-licensed electricians.
• Plumbing and HVAC: state-licensed trades; the county issues no plumbing or mechanical permits.

Ordinance 37 also requires septic contractors to register with Iowa Workforce Development and renew their county bond every year; the county may forfeit the bond of a contractor who works without permits or installs a system improperly, with an appeal to the Board of Health within 30 days. Any new septic system for a restaurant, event center or other building serving the public must include a 1,000-gallon grease trap. Advanced septic systems such as peat, textile or coco filters and other units needing maintenance require a signed county maintenance agreement and a service contract with a certified technician for the life of the system, filed with Environmental Health every year; a missed year’s maintenance costs the homeowner a $100 fine that repeats each month until the work is done.

How to start a project in Iowa County

Review, corrections and what causes delay

Delays usually come from the order of steps: entrance work cannot start until the Engineer’s field inspection, a septic permit is not processed without the installer’s information and an E911 address, and blueprints must reach the Assessor a full 30 days before construction. Sites near a city or in the Amana Land Use District add that body’s review, and floodplain sites need the floodplain permit first.

Inspections in Iowa County

County inspections are tied to the county’s own permits. Under Ordinance 37 the installer must notify the county sanitarian at least one workday before starting a septic system and again at completion, and the sanitarian performs a presite evaluation, a bottom inspection and a final inspection; conventional lateral fields first need a soil analysis by an engineer or certified soil scientist. For entrances, the applicant books a site review with the Engineer’s office and marks the center of the proposed entrance with a flag; the inspector approves the location, checking sight distance and distance from the nearest intersection, and later approves the finished installation. A septic permit stays valid for 12 months, within which the system must be finished, unless the Board of Health orders faster work because effluent is a public health threat.

When a property with a septic system sells, a time-of-transfer inspection is required. If weather keeps the certified inspection from happening, the buyer can sign a binding agreement with the county, requested at least five business days before closing, with the $300 fee paid before the document is released; it is valid for 90 days after closing unless weather prevents the work, at the sanitarian’s discretion. Low-interest loans through participating local lenders, under the Onsite Wastewater Assistance Program, help rural owners replace outdated systems.

Iowa building code

Iowa County has not adopted a county building code, so no county official enforces the state building code in the unincorporated area. FEMA’s Community Status Book lists Iowa County as participating in the National Flood Insurance Program, with its current flood maps effective October 21, 2021.

Iowa lets most cities and counties adopt the state building code, another code or none (a city of more than 15,000 must enforce at least the state code), but the energy, accessibility, fire, plumbing, mechanical and electrical rules apply statewide. Iowa rules

Resolution 2026-07-31, adopted July 31, 2026 on a 4-0 roll call and effective immediately, prohibits the acceptance, processing, consideration or approval of any subdivision, site plan, conditional use, building permit, rezoning or other development application for any type or class of data center in the unincorporated areas of Iowa County. It stays in effect for 12 months from adoption unless the supervisors rescind or extend it by a later resolution. It does not apply to legally established data centers already operating, applications that had every required final approval before it took effect, or routine maintenance, repair or upgrades of existing lawful facilities that are not an expansion or a new data center use. County staff were directed to review data center requests and propose definitions and standards.

Iowa County permit records and official resources

Septic, well, entrance, floodplain and address records are kept by the department that issued them and can be requested under Iowa Code chapter 22. Supervisors’ agendas and minutes, including the data center moratorium, are posted on the county’s meetings page.

• Iowa County zoning information
• Pre-Construction Application
• County ordinances
• Environmental Health
• Septic permit applications
• Private wells and well plugging
• Ordinance 37, on-site wastewater and well permits
• County Engineer
• Road permits and policies
• Entrance and driveway permit
• Floodplain development permit
• Ordinance 36, floodplain management
• Request a 911 address
• Board of Supervisors meetings and minutes
• FEMA Community Status Book, Iowa

Iowa County permit FAQs

Do I need a building permit to build a house in rural Iowa County?

Not from the county, which has no building code. You still need the septic permit, entrance permit, 911 address and, in flood Zone A, a floodplain permit, all started through the Pre-Construction Application.

Is my rural land zoned?

Only if it is within two miles of a city limit or inside the Amana Land Use District, or under the airport height rules; otherwise the county says it is not regulated by zoning.

How much is a septic permit?

$300, valid for 12 months, and the installer must be CIOWTS certified and bonded for $20,000 with the Board of Health.

Can I install my own septic system?

Only if you hold the CIOWTS certification and the $20,000 bond.

How do I add a driveway onto a county road?

File the entrance permit with the County Engineer and pay $50; work waits for the field inspection.

How long is an entrance permit valid?

One year from issuance. The entrance must follow the county’s 2017 Access Policy, and the county can supply the culvert and bands at cost.

Who issues electrical permits outside the cities?

The State of Iowa (DIAL); no county ordinance sets up a local electrical inspection program.

Can a data center be built in Iowa County now?

Not in the unincorporated area while the 12-month moratorium adopted July 31, 2026 is in force.

Simplify Iowa County permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Iowa. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Iowa County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.