Jefferson County, WI - 2026 Building Permit Guide

Permit Authority

County zoning and land-use permits for unincorporated Jefferson County; the county application explicitly tells applicants to check with the town for administrative and building permit requirements.

Department

Jefferson County Planning and Zoning, Zoning Division

Address

311 S. Center Ave., Room C1040, Jefferson, WI 53549-1701

Phone

(920) 674-7130

Email

zoning@jeffersoncountywi.gov

Website

https://apps.jeffersoncountywi.gov/jc/zoning

Online Permit Portal

Application Process

Source: Jefferson County Planning and Zoning, Zoning Division

General Requirements

County fee schedule says no zoning permit is required for ordinary maintenance repairs such as painting, decorating, paneling, shingling, siding, and replacement of doors, windows, and other non-structural components

Required Documents

• Parcel number, owner information, contractor info if applicable, project description, PDF plot plan and supporting PDFs, fire number if required

Building code

Wisconsin statewide code applies locally, including SPS 320-325 for one and two family dwellings and SPS 361-366 for commercial work; county page also references floodplain and shoreland rules

Fees

Minimum permit fee

$25 for sign permits, $30 for some agricultural / accessory / nonstructural items; after-the-fact minimum fee is $100 because double permit fee applies

Permit fee formula

County schedule uses flat fees by work type, size, and shoreland or floodplain status

Reinspection fee

double permit fee for after-the-fact permits, minimum $100

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

Work That Does NOT Require a Permit

• Ordinary maintenance repairs
• Painting
• Decorating
• Paneling
• Shingling
• Siding
• Replacement of doors
• Replacement of windows
• Other non-structural component replacement

Inspections

How to Schedule

Typical inspection sequence: application, review, fee payment, approval, then any required field inspections are handled through the county permit process

after-the-fact projects are penalized with double fees

Additional Resources

• Building code: Wisconsin statewide code applies locally, including SPS 320-325 for one and two family dwellings and SPS 361-366 for commercial work; county page also references floodplain and shoreland rules
• Zoning information: View zoning info
• Fee PDF
• GIS / parcel tools
• License lookup guide: Wisconsin Contractor License Requirements
• Contract template: Wisconsin Homeowner-Contractor Agreement
• Wisconsin hub: Wisconsin Contractor License & Permit Hub

Frequently Asked Questions

Jefferson County Building Permit FAQ

Do I need a building permit in unincorporated Jefferson County, WI?

County fee schedule says no zoning permit is required for ordinary maintenance repairs such as painting, decorating, paneling, shingling, siding, and replacement of doors, windows, and other non-structural components

How much does a building permit cost in unincorporated Jefferson County, WI?

The minimum permit fee is $25 for sign permits, $30 for some agricultural / accessory / nonstructural items; after-the-fact minimum fee is $100 because double permit fee applies. Fees are calculated as: County schedule uses flat fees by work type, size, and shoreland or floodplain status.

What work is exempt from building permits in unincorporated Jefferson County, WI?

The following work is generally exempt: Ordinary maintenance repairs; Painting; Decorating; Paneling; Shingling; Siding; Replacement of doors; Replacement of windows; Other non-structural component replacement.