jaspector
County building permits

Unincorporated Winnebago County

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

Last verified
April 2026
On this page 6
§ 01

Permit authority

Winnebago County Planning and Zoning

Street address
112 Otter Ave, 3rd Floor, Oshkosh, WI 54903
Coverage
Winnebago County is not a single countywide building department for all unincorporated land. County Planning and Zoning issues county zoning permits, sanitary permits, and erosion control permits in the towns of Algoma, Neenah, Nekimi, and Omro, and also regulates rural shoreland areas countywide. In the towns with town zoning, the town issues zoning permits and the county still handles shoreland, sanitary, and some county land-use approvals.
Online portal
Permit portal
CivicPlus applications page with downloadable forms
Additional resources
§ 02

When a permit is required

Permit triggers and exempt work for Winnebago County

County permits are required for county zoning, sanitary, stormwater, erosion control, temporary use, and rural shoreland regulated work. The county zoning FAQ states incorporated areas issue their own permits and county zoning towns are Algoma, Neenah, Nekimi, and Omro.

Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.
  • Exempt Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.
Required documents
  • Signed application, parcel information, site plan, and supporting materials required by the permit type.
Building code
County page states the department issues zoning, sanitary, stormwater, erosion control, and temporary use permits; it is not the unified building code authority for all unincorporated structures.
Contractor requirements
County sanitary and land-use pages do not post one unified contractor licensing rule for all permit types.
§ 03

Application process

Typical processing: Not generally posted; commercial plan and hearing matters vary by application type.

  1. 01
    Confirm the parcel is in unincorporated Winnebago County and identify whether it is in county zoning, town zoning, or shoreland jurisdiction.
  2. 02
    Pull the applicable county application for zoning, sanitary, erosion control, stormwater, or temporary use approval.
  3. 03
    Submit the signed application, plans, and supporting documents to Planning and Zoning by email, mail, or in person.
  4. 04
    Pay fees. The county states applications are not processed or reviewed until fees are paid, and card payments are accepted in person only.
  5. 05
    If the project also needs a town, city, or village permit, obtain that local permit separately before starting work.

Typical processing time: Not generally posted; commercial plan and hearing matters vary by application type.

Source: Winnebago County Planning and Zoning ↗

§ 04

Fee schedule

Winnebago County building permit fees

Fee type
Amount
01
Permit fee formula
Mixed flat-fee schedule by permit and application type
02
Reinspection fee
Vary by permit type; confirm on the relevant application or fee sheet

County states fees must be paid before processing; debit and credit cards are accepted in person only and carry a convenience fee

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

How to schedule
  • County inspections depend on permit type; sanitary and erosion-control inspections are coordinated with Planning and Zon (online)
Inspection hours
Monday through Friday, 8:00 AM to 4:30 PM for department hours

Typical sequence: County land-use or sanitary approval first, then local building permit and inspections where applicable, then county closeout for county-regulated work if required

§ 06

Frequently asked

Common questions about unincorporated Winnebago County permits

01 Do I need a building permit in unincorporated Winnebago County, WI?
County permits are required for county zoning, sanitary, stormwater, erosion control, temporary use, and rural shoreland regulated work. The county zoning FAQ states incorporated areas issue their own permits and county zoning towns are Algoma, Neenah, Nekimi, and Omro.
02 How much does a building permit cost in unincorporated Winnebago County, WI?
Building permit fees in unincorporated Winnebago County, WI are set by the local building department and vary by project type and valuation. Fees are calculated as: Mixed flat-fee schedule by permit and application type.
03 How do I apply for a building permit in unincorporated Winnebago County, WI?
To apply for a building permit in unincorporated Winnebago County, WI, follow these steps: 1. Confirm the parcel is in unincorporated Winnebago County and identify whether it is in county zoning, town zoning, or shoreland jurisdiction. 2. Pull the applicable county application for zoning, sanitary, erosion control, stormwater, or temporary use approval. 3. Submit the signed application, plans, and supporting documents to Planning and Zoning by email, mail, or in person. 4. Pay fees. The county states applications are not processed or reviewed until fees are paid, and card payments are accepted in person only. 5. If the project also needs a town, city, or village permit, obtain that local permit separately before starting work.
04 How long does it take to get a building permit in unincorporated Winnebago County, WI?
Building permit processing times in unincorporated Winnebago County, WI typically run Not generally posted; commercial plan and hearing matters vary by application type.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Winnebago County, WI?
Not all construction work requires a permit in unincorporated Winnebago County, WI. The following work is generally exempt: Applicants should not assume exemption if the parcel is in shoreland, floodplain, sanitary, stormwater, or erosion-control jurisdiction.. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Winnebago County, WI?
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Winnebago County, WI via: County inspections depend on permit type; sanitary and erosion-control inspections are coordinated with Planning and Zon.
last verified April 2026 source Winnebago County Planning and Zoning ↗ entry id permits/wisconsin/winnebago-wi/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Winnebago County Planning and Zoning before applying. Jaspector is not legal advice.