Polk County, IA - 2026 Building Permit Guide

Permit Authority

County building permit materials are for unincorporated Polk County. County zoning, floodplain, driveway, wastewater, and subdivision review can also apply depending on the parcel.

Department

Polk County Public Works

Address

5885 NE 14th Street, Des Moines, IA 50313

Phone

515-286-3705

Email

publicworks@polkcountyiowa.gov

Website

https://www.polkcountyiowa.gov/publicworks/

Online Permit Portal

Application Process

1. Confirm the parcel is in unincorporated Polk County and check zoning, floodplain, and access constraints on the county GIS and Public Works pages.
2. Use the county single-family home building permit packet and site-plan checklist to assemble the application, plans, and parcel-specific approvals.
3. Obtain any needed septic, driveway, floodplain, or subdivision approvals listed in the county packet.
4. Submit the signed application and supporting plans to Polk County Public Works.
5. Pay reviewed fees and respond to plan-review comments if issued.
6. Receive the permit and call in inspections as the job progresses.

Typical processing time: Not clearly published in the reviewed county materials.

Source: Polk County Public Works

General Requirements

The county packet covers new single-family homes and references related permits and reviews for structures and site development in unincorporated Polk County.

Required Documents

• Completed permit application
• Site plan
• Construction plans
• Parcel and contractor information
• Other agency approvals listed in the checklist

Permit validity

Not clearly published in the reviewed public materials.

Building code

County public materials reference building-permit review, but the exact active code edition was not clearly stated in the reviewed packet and should be confirmed with Public Works.

Owner-builder

The application allows owner information and owner signature fields; confirm any owner-builder limitations with Public Works.

Contractor requirements

Iowa contractor registration and trade-specific state licensing should be expected where applicable; county packet requests contractor information.

Fees

Minimum permit fee

Not clearly published in the reviewed public materials.

Plan check fee

Not clearly published in the reviewed public materials.

Permit fee formula

Not clearly published in the reviewed public materials.

Reinspection fee

Not clearly published in the reviewed public materials.

Payment note

Confirm payment method with Public Works when filing.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

Contact the Polk County Public Works to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

• Call county inspection staff after permit issuance (phone)

Typical inspection sequence: Foundation, framing, trade, and final inspections should be expected based on project scope, but the county does not publish a single sequence list on the reviewed packet.

Not clearly published.

Additional Resources

• Building code: County public materials reference building-permit review, but the exact active code edition was not clearly stated in the reviewed packet and should be confirmed with Public Works.
• Zoning information: View zoning info
• Floodplain Management
• Wastewater Treatment Systems
• License lookup guide: Iowa Contractor License Requirements
• Contract template: Iowa Homeowner-Contractor Agreement
• Iowa hub: Iowa Contractor License & Permit Hub

Frequently Asked Questions

Polk County Building Permit FAQ

Do I need a building permit in unincorporated Polk County, IA?

The county packet covers new single-family homes and references related permits and reviews for structures and site development in unincorporated Polk County.

How much does a building permit cost in unincorporated Polk County, IA?

The minimum permit fee is Not clearly published in the reviewed public materials.. Fees are calculated as: Not clearly published in the reviewed public materials.. Plan check fee: Not clearly published in the reviewed public materials..

How do I apply for a building permit in unincorporated Polk County, IA?

1. Confirm the parcel is in unincorporated Polk County and check zoning, floodplain, and access constraints on the county GIS and Public Works pages. 2. Use the county single-family home building permit packet and site-plan checklist to assemble the application, plans, and parcel-specific approvals. 3. Obtain any needed septic, driveway, floodplain, or subdivision approvals listed in the county packet. 4. Submit the signed application and supporting plans to Polk County Public Works. 5. Pay reviewed fees and respond to plan-review comments if issued. 6. Receive the permit and call in inspections as the job progresses.

How long does it take to get a building permit in unincorporated Polk County, IA?

Typical processing time is Not clearly published in the reviewed county materials..

What work is exempt from building permits in unincorporated Polk County, IA?

The following work is generally exempt: No county exempt-work handout was clearly located in the reviewed public sources.; Applicants should confirm claimed permit exemptions directly with Polk County Public Works because zoning, floodplain, driveway, and wastewater approvals may still apply even when no building permit is required..

How do I schedule a building inspection in unincorporated Polk County, IA?

Inspections can be scheduled via: Call county inspection staff after permit issuance.