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

At a glance

Building permit

Required statewide (WI Uniform Dwelling Code); issued by your town, not the county¹²

County general zoning

Only in the Towns of Brillion, Charlestown, New Holstein & Woodville³

Shoreland & floodplain zoning

Countywide in all unincorporated areas³

Septic authority

Calumet County (Chapter 74), under WI DSPS rules⁴

Owner-builder

Allowed for an owner who occupies the home⁵⁶

Off-grid sanitation

State code still requires an approved wastewater system, even without public sewer⁷

Well permit

DNR construction notification required, $50.50 fee⁸

Who to call

Contact details are copied from each office’s official page and were checked against it on September 25, 2026.

Do you need a building permit in Calumet County, Wisconsin?

Yes: Wisconsin's statewide Uniform Dwelling Code requires a Wisconsin Uniform Building Permit before construction begins on any new one- or two-family dwelling built since June 1, 1980, and that includes homes in unincorporated Calumet County¹². Construction can start only after plans are approved and the permit is issued and posted, and inspectors must be called before each phase of work is covered up, with the inspector given two business days after a ready inspection request before the work may be closed in⁹¹⁰. A building permit cannot be issued for a new home using a private septic system until a sanitary permit has already been issued, so line up septic approval first⁹. Occupancy follows a final inspection with no major health or safety violations, and the dwelling's exterior must be finished within two years of permit issuance¹¹. An owner who currently occupies, or will occupy, the finished home can take out the construction and erosion-control permits directly, without a state-certified Dwelling Contractor, though plumbing and electrical work generally still needs licensed trades⁵⁶.

Who issues building permits in Calumet County, and how do you reach the Code Administrators?

Calumet County does not run its own countywide building department; the Uniform Dwelling Code is enforced by whichever municipal or county building inspection agency has jurisdiction over your specific town, and that varies by town in Calumet County¹¹². Start with the county's Planning, Zoning and Land Information Department, staffed by its Code Administrators: assistance is given with zoning, including building permits, floodplain zoning, sanitation issues, some road access matters, and wetland regulation¹³. Reach the department at 206 Court Street in Chilton, Wisconsin, or by phone at (920) 849-1442; the office recently moved within the Courthouse, so use entrance D1 or D2 if you have trouble finding it¹³. Ask the Code Administrators to confirm which building-inspection jurisdiction covers your parcel before you apply, since your town, not the county, typically issues the Wisconsin Uniform Building Permit itself¹³¹.

Does Calumet County have zoning?

Partly: Calumet County's general Zoning Code, Chapter 82, is in effect only in the Towns of Brillion, Charlestown, New Holstein, and Woodville, while cities and villages zone themselves separately³¹⁴. Outside those four towns, zoning depends on whether the individual town has adopted its own ordinance; ask the Code Administrators which rule applies to a specific parcel¹³. Two other county ordinances apply everywhere in unincorporated Calumet County regardless of a town's zoning status: the Shoreland Zoning Ordinance, Chapter 52, governs development within 1,000 feet of a navigable lake, pond, or flowage and within 300 feet of a navigable river or stream, and the Floodplain Ordinance, Chapter 51, governs development and land-disturbing activity in mapped floodplains¹⁴. Wisconsin's shoreland standard sets a 75-foot minimum building setback from the ordinary high-water mark and caps structures within that 75 feet at 35 feet tall, with narrow exceptions for piers, boathouses, and similar structures¹⁵¹⁶. In the floodway itself, new structures, substantially improved or damaged structures, hazardous or solid-waste storage, and new wells or sewage systems are prohibited outright, and floodfringe structures must have their first floor at least two feet above the base flood elevation¹⁷.

How do septic permits work in Calumet County?

Calumet County issues its own septic permits: Chapter 74 of the county code contains standards that govern the design, installation, operation, inspection, and administration of Private Onsite Wastewater Treatment Systems (POWTS) within all areas of Calumet County¹⁸⁴. That makes septic one of the few rules that applies the same way whether or not your town has adopted county zoning. Reach the Sanitation program at the same office, 206 Court Street in Chilton, or by phone at (920) 849-1442¹⁸. Statewide, a POWTS must be visually inspected at least once every three years, and an anaerobic treatment tank needs servicing once combined sludge and scum reaches about a third of tank volume¹⁹. USDA soil survey data rates only about 2.6% of Calumet County's soils as not severely limited for a conventional drain field, so budget for a site evaluation and expect many parcels to need an engineered or mound system²⁰. Large systems, generally near or above 12,000 gallons per day or serving more than 85 bedrooms, need both a County Sanitary Permit and a state WPDES discharge permit²¹.

Can you live in an RV or tiny home on your land in Calumet County?

Wisconsin plumbing code requires that any building with plumbing fixtures not connected to a public sewer provide for treating, recycling, dispersing, or holding its wastewater through an approved system, so simply parking an RV or tiny home on raw land without an approved septic or holding-tank connection does not satisfy state sanitation rules⁷. A manufactured home installed as a permanent one- or two-family dwelling is covered by the same statewide Uniform Dwelling Code as a site-built house, including the installation rules for manufactured homes produced on or after April 1, 2007²². Wisconsin's state park camping rules only govern reserved campsites inside the state park system and do not answer whether you can live in an RV on your own rural parcel²³. No confirmed Calumet County or Wisconsin rule in this guide's research specifically addresses long-term RV or tiny-home occupancy on private land outside a park or campground; ask the Code Administrators directly about occupancy standards for your specific town before you buy¹³.

Building a home in Calumet County: the steps, in order

1. Confirm your parcel's town and its zoning status with the Code Administrators; Calumet County's general Zoning Code (Chapter 82) applies only in the Towns of Brillion, Charlestown, New Holstein, and Woodville, so other towns may have their own zoning or none¹³¹⁴³.
2. Check whether the parcel sits in the shoreland or floodplain overlay; both Chapter 52 (shoreland) and Chapter 51 (floodplain) apply in every unincorporated part of the county regardless of town zoning¹⁴³¹⁷.
3. Apply for a septic (sanitary) permit through the county's Sanitation program before applying for a building permit; a building permit cannot be issued for a home on a private system until the sanitary permit is issued¹⁸⁹.
4. If you need a new well, submit a Well Construction Notification to the Wisconsin DNR before drilling; the notification fee is $50.50 and a completion report is due within 30 days of construction⁸.
5. If the driveway will connect to a county highway, apply for a Calumet County Highway Department access permit; fees run $150 for a private driveway, $200 for an agricultural driveway, $400 for a commercial driveway, and $875 for a new public-street connection²⁴.
6. Confirm with the Code Administrators which municipal or county building-inspection agency has jurisdiction over your town, then submit at least two sets of plans with your Wisconsin Uniform Building Permit application; a $30 state permit-seal fee applies to every new dwelling¹³²⁵²⁶.
7. Schedule inspections for each phase of construction before it is covered up, and finish the exterior within two years of permit issuance to take occupancy¹⁰¹¹.

What to check before you buy land in Calumet County

Zoning: find out whether your specific town is one of the four under the county Zoning Code (Brillion, Charlestown, New Holstein, or Woodville) or whether it has its own separate town ordinance, since that determines who approves your building plans³¹³. Septic: with only about 2.6% of the county's soils rated free of severe limits for a conventional drain field, get a site evaluation from the county's Sanitation program before you commit to a parcel²⁰¹⁸. Water: a new well needs a Wisconsin DNR construction notification, and some DNR-approved county ordinances add a local well permit on top of that; ask the Code Administrators whether Calumet County requires one⁸. Flood and shoreland: land within 1,000 feet of a lake or 300 feet of a river, or in a mapped floodplain, carries the county's Chapter 52 and Chapter 51 overlay rules even where town zoning does not otherwise apply¹⁴. Access: a driveway onto a county highway needs a Highway Department access permit running from $150 for a private driveway up to $875 for a new public-street connection, separate from any state highway connection permit WisDOT requires²⁴²⁷. Taxes: Calumet County's effective property tax rate runs about 1.5%, with a median annual bill near $3,830²⁸²⁹.

Watch-outs

• Calumet County's general Zoning Code applies only in the Towns of Brillion, Charlestown, New Holstein, and Woodville; outside those towns, ask the Code Administrators or your town clerk what zoning, if any, applies before assuming a parcel is unrestricted³¹³.
• The county's Planning, Zoning and Land Information Department recently moved within the Chilton Courthouse; use entrance D1 or D2 to find it in person¹³.
• Calumet County has posted a notice about a fraudulent invoice scam circulating in the county; verify any invoice or fee request that claims to be from the county before paying it¹³.
• No confirmed county or state rule specifically addresses long-term RV or tiny-home occupancy on private land outside a park or campground; confirm with the Code Administrators before relying on one for full-time living¹³.

Sources

1. Wisconsin DSPS - One- & Two-Family (Uniform Dwelling Code) (2026 county census)
2. One- & Two-Family (Uniform Dwelling Code) (Wisconsin statewide rule), quoted and re-checked
3. Zoning | Calumet County, WI (2026 county census)
4. Sanitation | Calumet County, WI (2026 county census)
5. Wisconsin DSPS - Building a Home in Wisconsin (UDC Guide) (2026 county census)
6. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
7. Wisconsin Administrative Code, SPS 382 (Wisconsin statewide rule), quoted and re-checked
8. Well and heat exchange notification (Wisconsin statewide rule), quoted and re-checked
9. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
10. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
11. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
12. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
13. Calumet County Planning, Zoning and Land Information Department (Code Administrators) (co.calumet.wi.us)
14. Calumet County Shoreland & Floodplain Zoning (Planning, Zoning and Land Information Department) (co.calumet.wi.us)
15. Wisconsin’s Shoreland Management Program (Wisconsin statewide rule), quoted and re-checked
16. Minimum Shoreland Wetland Zoning Model Ordinance (Wisconsin statewide rule), quoted and re-checked
17. Floodplain Development Basics (Wisconsin statewide rule), quoted and re-checked
18. Calumet County Sanitation Program (Planning, Zoning and Land Information Department) (co.calumet.wi.us)
19. Wisconsin Maintenance Program (Wisconsin statewide rule), quoted and re-checked
20. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
21. Joint DNR/DSPS Plan Review Procedures For Large POWTS (Wisconsin statewide rule), quoted and re-checked
22. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
23. Camping Rules — Wisconsin State Park System (Wisconsin statewide rule), quoted and re-checked
24. Calumet County Highway Department (co.calumet.wi.us)
25. Wisconsin Administrative Code SPS 320.09 (Wisconsin statewide rule), quoted and re-checked
26. Wisconsin Administrative Code SPS 302.34 (Wisconsin statewide rule), quoted and re-checked
27. State highway connection permits (driveways & more) (Wisconsin statewide rule), quoted and re-checked
28. Effective property tax rate: Bolthole Index county data
29. Median property tax bill: Bolthole Index county data

Written September 25, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.