Administrative overview · FIPS 19149
Plymouth County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Plymouth County Planning and Zoning Department
For a project in or near Plymouth County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
712-546-7516; fax 712-546-8797
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Plymouth County Zoning, Plymouth County Courthouse Annex, 215 4th Avenue SE, Le Mars, IA 51031
Operating hours
Tuesday and Wednesday, 8:00 a.m.-5:00 p.m., closed for lunch 12:00-1:00 p.m.; the courthouse is open Monday-Friday, 8:00 a.m.-5:00 p.m.
Review expectation
N/A. No general zoning-permit review deadline was published. Accepted building permits are valid for one year; the ordinance requires certificates of occupancy to be issued within 10 days after erection or structural alteration when the building conforms to the ordinance.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Plymouth County
Who handles permitting for this jurisdiction?
Plymouth County Planning and Zoning Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
No verified online portal was located in the reviewed public materials. Contact 712-546-7516; fax 712-546-8797 and request the current application route before preparing a final submittal.
How long might review take?
N/A. No general zoning-permit review deadline was published. Accepted building permits are valid for one year; the ordinance requires certificates of occupancy to be issued within 10 days after erection or structural alteration when the building conforms to the ordinance.
How are inspections scheduled?
Submit the one-page Land Use Permit to Plymouth County Zoning at the Courthouse Annex or contact zoning@plymouthcountyiowa.gov and 712-546-7516. The form requests parcel/legal location, building type/use, cost, dimensions, setbacks, floodplain status, and owner information; driveway work also requires County Engineer certification. The permit form states that the county assumes no responsibility for inspections and that periodic visits from the Zoning or Assessor's office may check project progress. No online inspection-booking portal or technical inspection schedule was published.
Which codes and exemptions should I review?
No separate 2026 technical IBC/IRC edition was identified in Plymouth County's published materials. The Planning and Zoning Department administers the Comprehensive Plan, Zoning Ordinance, Subdivision Ordinance, and Floodplain Ordinance for unincorporated Plymouth County and issues land-use/building and zoning permits. The current posted zoning ordinance is the 2000 ordinance updated October 24, 2023; applicable Iowa state construction, electrical, plumbing, mechanical, septic, environmental, and other requirements remain in force. The published Plymouth County land-use permit form does not provide a broad cosmetic-work exemption list and states that the county assumes no responsibility for construction inspections or approvals. The zoning ordinance generally requires a permit before erecting, constructing, reconstructing, moving, or structurally altering a building or structure, or using/occupying land in the unincorporated area. Government entities, educational institutions, and qualifying 28E-agreement entities are exempt from building-permit fees under the March 3, 2026 fee schedule. Nonconforming structures may have limited maintenance, repair, or remodeling rights if they do not create or increase a nonconformity; floodplain and state requirements can still apply.