ADU Permit Requirements in Des Moines, Iowa

Everything you need to apply for a adu permit in Des Moines, Iowa โ€” documents, fees, steps, and a downloadable submission packet.

Key Facts

Permit required
Yes
Submission method
Online
Typical fee range
$2,250 โ€“ $8,250
Review time
Varies by jurisdiction
Inspections
6 inspections required
VerifiedLast verified: Feb 15, 20262 verified sources

Permit Requirements (7 items)

7 required

๐Ÿ“‹ Forms & Applications(1)

๐Ÿ“ Plans & Diagrams(5)

๐Ÿ“„ Supporting Documents(1)

Generate your permit packet

Get a personalized ADU permit packet for Des Moines, Iowa โ€” tailored to your project details.

  • Required forms: Building Permit Application, and more
  • Pre-filled templates: Permit Cover Sheet
  • Fee breakdown: $750โ€“$5,000 estimated total
  • Step-by-step City of Des Moines Planning and Zoning Department portal submission guide
  • Inspection prep checklist (6 items)
  • Personalized for your specific project details
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Permit Process

Follow these steps to submit your permit application through City of Des Moines Planning and Zoning Department.

  1. 1

    Zoning Eligibility Verification

    Obtain zoning verification letter from Des Moines Planning confirming ADU is allowed in property zoning district and meets dimensional requirements

    You'll need: Zoning Verification Letter, Proof of Property Ownership

  2. 2

    Submit Building Permit Application

    Submit complete permit application with architectural, structural, utility plans and all required supporting documentation to Des Moines Planning and Zoning

    You'll need: Building Permit Application, Architectural Drawings, Site Plan, Structural Engineering Plans, Mechanical and Utility Plans

  3. 3

    Plan Review and Approval

    Des Moines Planning conducts comprehensive plan review for compliance with zoning ordinance, Iowa Building Code, and design standards

  4. 4

    Address Plan Review Comments

    Revise and resubmit plans as needed to address any code compliance issues or comments raised during plan review

  5. 5

    Permit Issuance and Payment

    Pay all permit fees and receive approved building permit authorizing construction to begin

  6. 6

    Construction Inspections

    Schedule and pass required inspections: foundation, framing, electrical, plumbing, mechanical, and final inspection per Iowa Building Code

  7. 7

    Certificate of Occupancy

    Receive Certificate of Occupancy from Des Moines Building Official upon successful final inspection and code compliance verification

Fees and Timeline

Fee Breakdown

FeeRangeConfidence
ADU Permit Fee$1,500 โ€“ $5,000Verified
Plan Review Fee$750 โ€“ $3,250Verified

Inspections Required

Foundation and footing inspection per Iowa Building Code

Foundation and footing inspection per Iowa Building Code

Framing and structural member verification

Framing and structural member verification

Electrical rough-in and separate service panel inspection

Electrical rough-in and separate service panel inspection

Plumbing rough-in and fixture installation inspection

Plumbing rough-in and fixture installation inspection

Mechanical systems and HVAC installation inspection

Mechanical systems and HVAC installation inspection

Final inspection and Certificate of Occupancy

Final inspection and Certificate of Occupancy

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

City of Des Moines Planning and Zoning Department

Last verified: February 15, 2026

2 sources referenced

Official page
Des Moines ADU Development Guidelines

Verified February 15, 2026

Official page
Portal guide
Fee schedule

Frequently Asked Questions

Do I need a adu permit in Des Moines?
Yes. Des Moines requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
How long does adu permit approval take in Des Moines?
Processing times in Des Moines vary depending on project complexity and current review volume. The process involves 7 steps. Contact Des Moines Development Services for current timelines.
What documents are required for a adu permit in Des Moines?
Des Moines requires 7 documents including Building Permit Application, Architectural Drawings, Site Plan, Zoning Verification Letter, and others. See the full list above for details.
What happens if I build without a adu permit in Des Moines?
Building without a permit in Des Moines can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
Can PermitMagic help prepare my adu permit submission in Des Moines?
Yes. PermitMagic generates a submission-ready packet tailored to Des Moines's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
How much does a adu permit cost in Des Moines?
ADU permit fees in Des Moines typically range from $2,250 to $8,250, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Des Moines.

Related Permits

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Answer a few project questions and get a adu permit packet for Des Moines, Iowa โ€” with every document, form, and fee organized for submission.

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Sources & Citations

All regulatory information on this page is sourced from official government publications. Always verify requirements directly with your local Authority Having Jurisdiction (AHJ) before submission.

  1. [1]City of Des Moines Planning and Zoning Department โ€” Des Moines ADU Development Guidelineshttps://www.dmgov.org/planning(verified Feb 15, 2026)
  2. [2]City of Des Moines Planning and Zoning Department โ€” City of Des Moines Zoning Ordinance and Codehttps://library.municode.com/ia/des_moines(verified Feb 15, 2026)
  3. [3]City of Des Moines Planning and Zoning Department โ€” Des Moines Permits and Development Services Portalhttps://www.dmgov.org/permits(verified Feb 15, 2026)
  4. [4]City of Des Moines Planning and Zoning Department โ€” Des Moines Building Permit and Development Fee Schedulehttps://www.dmgov.org/planning(verified Feb 15, 2026)