County Building Permits
Adams County, IA - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Adams County, Iowa. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Unincorporated Adams County uses county zoning plus County Engineer administration for permanent building permits, entrance permits, utility permits, and right-of-way work. Septic applications are also published through the county permit portal.
- Department
- Adams County Zoning; Adams County Engineer; Adams County Environmental Health
- Address
- Zoning / Assessor's Office, 500 9th Street, Corning, IA 50841; Engineer's Office, 2004 200th St., Corning, IA 50841
- Phone
- 641-322-4312 (Zoning / permit portal questions); 641-322-3910 (Engineer)
Online Permit Portal
Platform: iWorQ Citizen Portal • Account required: No • Submission: In-person only
Application Process
- Confirm whether the project is in unincorporated Adams County and identify whether it needs zoning review, a county building permit, septic permit, or county engineer right-of-way permit.
- Submit a building permit application through the county permit system or directly with the Adams County Engineer, including building or architectural plans and a site plan.
- File the permit application at least 10 days before starting permanent building construction.
- Obtain any related entrance permit, utility permit, or right-of-way approval from the Adams County Engineer if the work affects county roads or county ROW.
- For septic work, apply through the county's iWorQ septic permit application process.
- Wait for approval and required inspections before beginning or advancing construction.
Typical processing time: Building permit applications must be approved at least 10 days prior to beginning construction; entrance permits must be approved at least 5 days prior to beginning construction.
Source: Adams County Zoning; Adams County Engineer; Adams County Environmental Health
General Requirements
Adams County Ordinance 21.18 says any building construction of a permanent nature in Adams County requires a building permit. Entrance construction also requires an entrance permit. The zoning ordinance states zoning affects every structure and use unless specifically exempted.
Required Documents
- Building permit application, building / architectural plans, and site plan. Entrance permits and other county engineer permits use separate county forms. Septic permit applications route through the county portal.
- Permit validity
- County building permits are valid for one year from issuance if construction is not commenced sooner; entrance permits are valid for 180 days.
- Building code
- Adams County publicly emphasizes its zoning ordinance and permit administration requirements. A specific ICC edition was not clearly posted in the county sources reviewed.
- Owner-builder
- Not separately summarized in the county pages reviewed.
- Contractor requirements
- Not clearly summarized on a single county page; state trade licensing rules may still apply depending on scope.
Fees
- Minimum permit fee
- County building permit and county engineer permits obtained through the engineer's office are stated to be free of charge
- Plan check fee
- Not separately published
- Permit fee formula
- Free county building permit; free right-of-way permits according to the county engineer permit page
- Reinspection fee
- Failure to secure a county building permit before construction incurs a $500 penalty, and each day without a permit is an additional violation
- Payment note
- Confirm whether septic or environmental-health related permits carry separate fees not displayed on the portal landing page
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
- No broad exemption list for general permanent rural construction was clearly posted in the public pages reviewed
Inspections
How to Schedule
- County ordinance requires timely inspections (phone)
- contact the Adams County Engineer or county zoning office for inspection routing (phone)
- Inspection hours
- Engineer's Office Monday-Friday 7:00 a.m. to 3:30 p.m.; courthouse hours Monday-Friday 8:30 a.m. to 4:30 p.m.
Typical inspection sequence: Submit plans and application, obtain county approval before start, complete timely inspections during construction, then proceed to completion
Not clearly posted
Additional Resources
- Building code: Adams County publicly emphasizes its zoning ordinance and permit administration requirements. A specific ICC edition was not clearly posted in the county sources reviewed.
- Zoning information: View zoning info
- https://adamscounty.iowa.gov/zoning/zoning_documents/
- https://adamscounty.iowa.gov/supervisors/county_ordinances/
- https://adamscountyia.portal.iworq.net/portalhome/adamscountyia
- License lookup guide: Iowa Contractor License Requirements
- Contract template: Iowa Homeowner-Contractor Agreement
- Iowa hub: Iowa Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Adams County Zoning; Adams County Engineer; Adams County Environmental Health before applying.
Frequently Asked Questions
Adams County Building Permit FAQ
- Do I need a building permit in unincorporated Adams County, IA?
- Adams County Ordinance 21.18 says any building construction of a permanent nature in Adams County requires a building permit. Entrance construction also requires an entrance permit. The zoning ordinance states zoning affects every structure and use unless specifically exempted.
- How much does a building permit cost in unincorporated Adams County, IA?
- The minimum permit fee is County building permit and county engineer permits obtained through the engineer's office are stated to be free of charge. Fees are calculated as: Free county building permit; free right-of-way permits according to the county engineer permit page. Plan check fee: Not separately published.
- How do I apply for a building permit in unincorporated Adams County, IA?
- 1. Confirm whether the project is in unincorporated Adams County and identify whether it needs zoning review, a county building permit, septic permit, or county engineer right-of-way permit. 2. Submit a building permit application through the county permit system or directly with the Adams County Engineer, including building or architectural plans and a site plan. 3. File the permit application at least 10 days before starting permanent building construction. 4. Obtain any related entrance permit, utility permit, or right-of-way approval from the Adams County Engineer if the work affects county roads or county ROW. 5. For septic work, apply through the county's iWorQ septic permit application process. 6. Wait for approval and required inspections before beginning or advancing construction.
- How long does it take to get a building permit in unincorporated Adams County, IA?
- Typical processing time is Building permit applications must be approved at least 10 days prior to beginning construction; entrance permits must be approved at least 5 days prior to beginning construction..
- What work is exempt from building permits in unincorporated Adams County, IA?
- The following work is generally exempt: No broad exemption list for general permanent rural construction was clearly posted in the public pages reviewed.
- How do I schedule a building inspection in unincorporated Adams County, IA?
- Inspections can be scheduled via: County ordinance requires timely inspections, contact the Adams County Engineer or county zoning office for inspection routing.
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