Marinette County, Wisconsin requires a Uniform Building Permit for a new one- or two-family home, with enforcement handled by a municipal or county certified inspector1. Unincorporated land is subject to Marinette County zoning, and the county Zoning/Sanitary Division handles private sewage systems where approved public sewer is unavailable23. Start with the local municipality for the dwelling permit and the county Land Information office for zoning and septic questions45.
At a glance
- Building permit
- Required for a new one- or two-family dwelling1
- Zoning
- County zoning applies in unincorporated areas covered by the ordinance6
- Septic
- Marinette County Zoning/Sanitary Division regulates private systems where public sewer is unavailable7
- Owner-builder
- An owner who occupies or will occupy the home may take out construction and erosion-control permits8
- RV living
- Long-term private-land occupancy is not confirmed; ask the county Zoning/Sanitary Division2
- Tiny home
- No county-specific occupancy rule confirmed; zoning, dwelling-code and sanitation rules may apply29
- Private well
- Advance DNR notification is generally required before a new non-high-capacity well10
Who to call
Zoning
Marinette County Land Information — Zoning/Sanitary Division
County zoning, shoreland and floodplain zoning, sanitation, and POWTS maintenance information
Resource Center - 1925 Ella Court - Marinette WI 54143
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Marinette County, Wisconsin?
Yes. A new one- or two-family dwelling in Marinette County needs a Wisconsin Uniform Building Permit, and the statewide Uniform Dwelling Code applies to covered homes built since June 1, 1980111. Construction may begin only after the plans are approved and the permit is issued and posted12. Permit requirements for additions and alterations vary by municipality, so identify the enforcing municipality or authorized inspection agency before planning that work12. Local fees also vary by ordinance, while a $30 state permit-seal fee applies to each new dwelling13.
Who issues Marinette County building permits, and how do you reach them?
Wisconsin dwelling-permit applications go to the municipality or its authorized Uniform Dwelling Code inspection agency, and enforcement may be provided by a municipal inspector, county inspector or the state414. Ask the clerk for the town, village or city containing the parcel to identify its current building inspector and application route. For county zoning, sanitation, shoreland and floodplain questions, contact Marinette County Land Information at 715-732-7541 or visit the Resource Center at 1925 Ella Court in Marinette5. The county office also links to property, sanitary, permit and GIS data5.
Does Marinette County have zoning?
Yes. Marinette County zoning applies in unincorporated areas covered by the county ordinance, which establishes Forestry, Recreation and Unrestricted districts and maps their boundaries615. County zoning does not govern incorporated villages and cities under the cited ordinance6. Wisconsin county zoning applies only in towns that have adopted it, and a town outside county zoning may have its own ordinance or may be unzoned16. Give Marinette County Land Information the parcel number and ask which jurisdiction and district apply before relying on a district name5. Shoreland parcels can face a 75-foot setback from the ordinary high water mark, subject to listed exceptions and setback averaging17.
How do septic permits work in Marinette County?
Marinette County's Zoning/Sanitary Division regulates private sewage and nonplumbing sanitation systems in areas not served by approved public sewer37. Contact County Land Information before fixing the house location, because a building permit for a new dwelling using private onsite wastewater cannot issue until the sanitary permit has issued125. Only 12.6% of county soils are mapped without severe limitations for a conventional septic drain field, so make an acceptable site evaluation a purchase condition rather than assuming a standard system will work18. Wisconsin also requires a visual inspection of a private wastewater system at least once every 3 years, with counties operating the maintenance-tracking programs19.
Can you live in an RV or tiny home on land in Marinette County?
We could not confirm a Marinette County rule that generally allows long-term RV residence on private land, so ask the county Zoning/Sanitary Division about the parcel, proposed duration and wastewater plan before moving in5. The Wisconsin State Park camping rules do not answer private-land occupancy. We also could not confirm a county-specific tiny-home occupancy rule or countywide minimum dwelling size; ask the same office which zoning district applies and which dwelling classification the proposal meets5. Any building with plumbing fixtures that is not connected to public sewer still needs a suitable way to treat, recycle, disperse or hold wastewater under Wisconsin sanitation rules9.
Building a home in Marinette County: the steps, in order
- Confirm whether the parcel is in a town, village or city and identify the municipality's current Uniform Dwelling Code inspector4.
- Give Marinette County Land Information the parcel number and confirm the zoning district, shoreland or floodplain constraints, and required county approvals515.
- If public sewer is unavailable, obtain the county sanitary permit before the dwelling permit can issue712.
- Submit the required forms, fees and at least 2 sets of plans to the municipality or authorized inspection agency4.
- Begin only after plan approval and permit issuance, then request inspections before each construction phase is covered1220.
- Occupy after a final inspection finds no major health or safety violations21.
What should you check before buying land in Marinette County?
Start with jurisdiction and zoning: county zoning covers specified unincorporated areas, while incorporated places and towns outside county zoning can follow different rules616. Check wastewater feasibility early because just 12.6% of mapped county soils avoid severe conventional drain-field limits18. For waterfront land, verify the ordinary high water mark because the standard shoreland setback is 75 feet, subject to exceptions17. Development in a floodway faces strong limits, including prohibitions on new structures, wells and sewage systems under the cited statewide rules22. A driveway connecting to a state highway needs a WisDOT connection permit23. For a private well, obtain the required advance DNR notification number before ordinary new-well construction10. The median property-tax bill is about $1,950 a year at an effective rate near 1.3%2425.
Watch-outs
- A new dwelling using private onsite wastewater cannot receive its building permit until the sanitary permit has issued12.
- Only 12.6% of mapped county soils avoid severe limits for a conventional septic drain field, so confirm a workable system before closing18.
- Long-term RV living, tiny-home occupancy, minimum dwelling size and a single countywide minimum lot size remain unconfirmed; ask Marinette County Land Information about the specific parcel5.
- County zoning does not answer every parcel: incorporated places have their own jurisdiction, and Wisconsin county zoning applies only in participating towns616.
Sources
- Wisconsin DSPS — One- & Two-Family (Uniform Dwelling Code) (2026 county census)
- Marinette County Chapter 17 Zoning Code (2026 county census)
- Marinette County Chapter 15 Private Sewage Systems (2026 county census)
- Wisconsin Administrative Code SPS 320.09 (Wisconsin statewide rule), quoted and re-checked
- Marinette County Land Information — Zoning/Sanitary Division (marinettecountywi.gov)
- Marinette County Chapter 17 Zoning Code, quoted and re-checked
- Marinette County Chapter 15 Private Sewage Systems, quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Wisconsin Administrative Code, SPS 382 (Wisconsin statewide rule), quoted and re-checked
- Well and heat exchange notification (Wisconsin statewide rule), quoted and re-checked
- One- & Two-Family (Uniform Dwelling Code) (Wisconsin statewide rule), quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Wisconsin Administrative Code SPS 302.34 (Wisconsin statewide rule), quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Marinette County Chapter 17 Zoning Code, quoted and re-checked
- Local Land Use Regulations and Comprehensive Planning Status Inventory Project (Wisconsin statewide rule), quoted and re-checked
- Wisconsin’s Shoreland Management Program (Wisconsin statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Wisconsin Maintenance Program (Wisconsin statewide rule), quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
- Floodplain Development Basics (Wisconsin statewide rule), quoted and re-checked
- State highway connection permits (driveways & more) (Wisconsin statewide rule), quoted and re-checked
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
Written September 27, 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.