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

The minimum permit fee is $75 for building under $50,000; $100 for building $50,000 to $100,000; house under $100,000 is $150. Plan check fee: thin data; no separate public plan check fee found in the fee schedule reviewed.

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

The following work is generally exempt: Farms and farm-related buildings are exempt under the zoning ordinance.; Real estate signs, one authorized business sign on the property, and election signs are exempt from sign permit requirements.; County ordinance also excludes some agricultural uses from zoning regulation..

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

Inspections can be scheduled via: contact the zoning office directly, no public online inspection scheduler found..

City Building Permits

Plymouth County, unincorporated area, IA - 2026 Building Permit Guide

How to apply for a building permit in Plymouth County, unincorporated area, Iowa. Permit authority, application steps, fees, and inspection requirements.

Iowa Plymouth County Updated March 2026

Permit Authority

Unincorporated Plymouth County only. The zoning ordinance explicitly applies to the unincorporated territory of Plymouth County.

Department
Address: Plymouth County Courthouse Annex, 215 4th Ave SE, Le Mars, IA 51031
Phone: 712-546-7516
Email: zoning@plymouthcountyiowa.gov
Website: https://plymouthcountyiowa.gov/departments/planning-zoning/

Online Permit Portal

Open Portal

Platform: None published • Account required: No • Submission: In-person only

Application Process

Start with the county building permit / land use permit form.
Provide a site plan or plot plan with dimensions and setbacks.
County reviews for zoning compliance and floodplain / subdivision issues as needed.
Zoning Administrator issues or denies a Certificate of Zoning Compliance within 15 days of filing.

General Requirements

Required Documents

land use permit form, site plan / plot plan, parcel or section-township-range details, project valuation, owner information, floodplain disclosure, driveway note if applicable.

Building code: thin data. The county zoning ordinance references a "Building Code" and older terminology such as the Uniform Building Code, but no current county building code adoption was clearly published on the reviewed pages.
Owner-builder: the form asks whether the applicant is the owner and requires owner / tax-responsible party information if not.
Contractor requirements: not clearly published on the county form; no separate public contractor registration rule found in county materials reviewed.

Fees

Minimum permit fee: $75 for building under $50,000; $100 for building $50,000 to $100,000; house under $100,000 is $150
Plan check fee: thin data; no separate public plan check fee found in the fee schedule reviewed
Reinspection fee: zoning violation per day $750

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

Work That Does NOT Require a Permit

Farms and farm-related buildings are exempt under the zoning ordinance.
Real estate signs, one authorized business sign on the property, and election signs are exempt from sign permit requirements.
County ordinance also excludes some agricultural uses from zoning regulation.

Inspections

How to Schedule

contact the zoning office directly (phone)
no public online inspection scheduler found. (phone)

Typical inspection sequence: permit application, county review, issuance, construction, then periodic visits from the zoning or assessor office.

county notes periodic visits to check project progress.

Additional Resources

Building code: thin data. The county zoning ordinance references a "Building Code" and older terminology such as the Uniform Building Code, but no current county building code adoption was clearly published on the reviewed pages.
Zoning information: View zoning info
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 before applying.

Frequently Asked Questions

Plymouth County, unincorporated area Building Permit FAQ

How much does a building permit cost in Plymouth County, unincorporated area, IA?: The minimum permit fee is $75 for building under $50,000; $100 for building $50,000 to $100,000; house under $100,000 is $150. Plan check fee: thin data; no separate public plan check fee found in the fee schedule reviewed.
How do I apply for a building permit in Plymouth County, unincorporated area, IA?: 1. Start with the county building permit / land use permit form. 2. Provide a site plan or plot plan with dimensions and setbacks. 3. County reviews for zoning compliance and floodplain / subdivision issues as needed. 4. Zoning Administrator issues or denies a Certificate of Zoning Compliance within 15 days of filing.
What work is exempt from building permits in Plymouth County, unincorporated area, IA?: The following work is generally exempt: Farms and farm-related buildings are exempt under the zoning ordinance.; Real estate signs, one authorized business sign on the property, and election signs are exempt from sign permit requirements.; County ordinance also excludes some agricultural uses from zoning regulation..
How do I schedule a building inspection in Plymouth County, unincorporated area, IA?: Inspections can be scheduled via: contact the zoning office directly, no public online inspection scheduler found..

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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