Building permits, zoning and land rules in Calumet County, Wisconsin

Yes. A Uniform Dwelling Code permit is required for every new one- or two-family home in Calumet County, including stick-built, modular and manufactured-home installations¹. Construction starts only after plan approval and after the permit is issued and posted⁵. The responsible inspector must inspect each construction phase before work is covered; after a request is made and the work is ready, the inspector has two business days before it may be covered⁵. Occupancy follows a final inspection that finds no major health or safety violations, although only some municipalities issue a separate occupancy permit; the exterior must be completed within two years after permit issuance⁵. An owner who occupies or will occupy the home may take out the construction and erosion-control permits, but the owner-builder option does not remove required permits or inspections⁵.

Permit and inspection authority depends on the parcel: Wisconsin may delegate Uniform Dwelling Code jurisdiction to a municipality or county, and the state handles new homes where the local authority lacks jurisdiction¹. Start with Calumet County's Planning, Zoning and Land Information Department, whose Code Administrators assist with zoning, building permits, floodplain zoning, sanitation, some road-access matters and wetland regulation⁸. The office is at 206 Court Street, Chilton, WI 53014, and the phone number is (920) 849-1442⁸. The department has moved within the courthouse, so visitors should use entrance D1 or D2⁸. The county does not issue every approval: building permits depend on the municipality or delegated inspector, zoning outside the four towns depends on the town, village or city, and septic permits stay with the county Sanitation program at (920) 849-1442^3,5,9. Ask the Code Administrators to identify the delegated building inspector for the parcel and whether a separate local permit is needed for an addition or alteration, because those requirements vary by municipality⁵.

Calumet County's general zoning ordinance applies only in the Towns of Brillion, Charlestown, New Holstein and Woodville; cities and villages may impose their own rules, and septic permits still come from the county^3,9. The county's online map shows current district boundaries in those county-zoned towns². In Chapter 82 districts, a dwelling generally needs at least 750 square feet of floor area, subject to exceptions for tiny homes, multiple-occupancy units and manufactured-home parks⁶. Road setbacks are 125 feet from a state or federal road centerline, 100 feet from a county road centerline and 75 feet from a town road centerline; different measurements govern private roads and platted subdivisions⁷. Maximum building height varies by district, and agricultural structures used solely for agriculture are among the listed exemptions⁶. County shoreland and floodplain zoning still applies throughout unincorporated Calumet County, including outside those four towns².

Calumet County administers Private Onsite Wastewater Treatment Systems throughout the county under Chapter 74³. A sanitary permit for a POWTS or holding tank costs $500, including the $100 state fee⁴. Licensed Certified Soil Testers and licensed plumbers may submit soil tests, sanitary permits and payments online; a submission is complete only when the department has all required paperwork and payment³. Reach the Sanitation program at 206 Court Street, Chilton, WI 53014, or at (920) 849-1442³. Only about 2.6% of Calumet County soils are rated without severe limitations for a conventional drain field, so obtain a soil and site evaluation before committing to a homesite¹⁰. Camping sanitation in Chapter 82 districts must use an approved onsite system, a self-contained holding tank emptied at an approved dump station, or a portable toilet handled through an approved dump station⁶.

In areas governed by Chapter 82, one camping party may camp without a regular zoning permit only in specified districts on a lot of at least 1 acre⁷. The camping unit must stay at least 25 feet from lot lines and 50 feet from another dwelling other than the landowner's home, and camping is capped at 15 consecutive days and 30 days per calendar year⁷. The unit must be removed or stored inside a building after each stay⁷. Calumet County's reviewed rules do not confirm long-term residential RV occupancy, so ask the Code Administrators about the parcel's applicable town or municipal rules⁸. In Chapter 82 districts, a home under 400 square feet designed for no more than 3 people needs conditional-use approval and a permanent foundation; applicable building codes remain part of that review⁶.

1. Identify the parcel's municipality and zoning authority; county general zoning covers only Brillion, Charlestown, New Holstein and Woodville towns, while cities and villages may have separate rules⁹.
2. Check the county mapping site for the zoning district and any shoreland or floodplain overlay².
3. If dividing land, submit the county application, fee and draft certified survey map or plat; all minor and major divisions require county approval¹¹.
4. Have a licensed professional complete the soil work and sanitary submission; the county's online process requires all paperwork and payment³.
5. Obtain a county-highway access permit where applicable; a private-driveway permit costs $150¹².
6. Ask the Code Administrators which delegated authority issues the UDC permit, then wait for plan approval and the posted building permit before starting^1,5.
7. Request each phase inspection before covering work, then obtain a clean final inspection before occupancy⁵.

Confirm the zoning authority and district before judging buildability, because general county zoning covers only four towns and incorporated municipalities may have different rules⁹. Check minimum lot area, height and setbacks for the actual district rather than applying one countywide number^6,7. For any land split, Calumet County approval is required: a minor subdivision creates four or fewer lots, while a major subdivision creates five or more¹¹. In a regulated floodplain, a Land Use Permit is required before new development, a repair, modification, addition or change in building use, including sewer and water facilities¹³. A county-highway driveway also needs an access permit¹². Septic suitability is a major cost question because only about 2.6% of county soils are rated without severe limitations for a conventional drain field¹⁰. Calumet County's effective property-tax rate is about 1.5%, and the median annual bill is about $3,830¹⁰.