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

At a glance

Building permit

Required for a new one- or two-family home; a delegated municipality or Wisconsin DSPS issues it¹

General zoning

No comprehensive county zoning; ask the parcel's town, city or village about its local rules³⁵

Septic permit

Brown County requires a sanitary permit for every new private onsite wastewater treatment system⁶

Septic inspection

Inspection occurs after installation and before backfilling; the plumber must notify the issuing agency⁷

Owner-builder

An owner who occupies or will occupy the home may pull construction and erosion-control permits⁸

Private well

A UDC home using a private well needs a permit from the county or municipality with authority⁹

Septic soils

Only about 5% of Brown County's soils are not severely limited for a conventional drain field¹⁰

Shoreland setback

At least 75 feet from the ordinary high water mark, with limited exceptions¹¹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 7, 2026.

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

Yes. Brown County projects involving a new one- or two-family dwelling, including a stick-built, modular or manufactured-home installation, require a permit under Wisconsin's Uniform Dwelling Code¹²¹³. Plans must be approved and the permit issued and posted before construction begins; additions and alterations can have municipality-specific permit rules¹³. The issuing authority is the municipality when it has delegated authority and Wisconsin DSPS otherwise¹. New homes require footing, foundation and reinforcement, rough-work, insulation and final inspections by the delegated municipality or a DSPS-appointed inspector¹⁴¹⁵. An owner who occupies or will occupy the finished home may obtain the construction and erosion-control permits, but owner-builder status does not waive permits, inspections, or the applicable plumbing and electrical trade rules⁸. Occupancy follows a final inspection with no major health or safety violations; some municipalities issue occupancy permits, and the exterior must be completed within 2 years after permit issuance¹⁶.

Who is the Brown County building department, and who issues permits?

The building-permit and inspection contact depends on the parcel: a municipality with delegated authority handles the UDC application, while Wisconsin DSPS handles it where the municipality lacks that authority²¹⁴. Start with the Brown County Land Information Office's GIS parcel map, or call (920) 448-6295 at 3rd Floor, 305 E Walnut St, Green Bay, to identify the parcel's town, village or city¹⁷. Brown County Planning and Land Services' Zoning Division separately handles sanitary and shoreland permits plus floodplain, wetland and non-metallic-mining matters¹⁸. Reach that office at 920-448-6480 in the Northern Building, Room 320, 305 E. Walnut Street, Green Bay¹⁸. Its posted hours are Monday through Thursday, 7:30 a.m. to 5:00 p.m., and Friday, 7:30 a.m. to 11:30 a.m.¹⁸.

Does Brown County have zoning?

Brown County is not comprehensively zoned; each municipality maintains its own general zoning, so ask the parcel's town, city or village for the current district, allowed uses, minimum lot size, ordinary setbacks and dwelling-size rules¹⁹²⁰. Brown County publishes shoreland, floodplain, farmland-preservation and airport-protection layers, but county-held municipal zoning may not reflect recent municipal changes²⁰. County shoreland and floodplain zoning applies throughout unincorporated Brown County and is also administered by the county in the Village of Bellevue under contract²⁰. Within the shoreland zone, the statewide baseline is a 75-foot setback from the ordinary high water mark, subject to stated exceptions and setback averaging¹¹. Brown County also reviews land divisions in towns and villages that create lots of 10 acres or less outside sewer service areas or 40 acres or less inside them, and serves as an objecting agency for subdivision plats in cities²¹²².

How do septic permits work in Brown County?

Brown County administers private onsite wastewater treatment systems through its Zoning Division under state technical authority and county procedure²³²⁴. Every new POWTS requires a sanitary-permit application to the county, with plan approval before permit issuance for systems that require it⁶²⁵. The process generally includes a soil and site evaluation, system design, any required plan approval, and county permit submission²⁶²⁷. After construction and before backfilling, the plumber must notify the issuing agency so the POWTS can be inspected⁷. The published fee information lists $600 for a conventional or mound permit, $400 for an existing-system inspection, and twice the normal fee for an after-the-fact permit²⁸. The newer fee record also lists a $16 annual sanitary-maintenance fee²⁹. Only about 5% of county soils lack severe limits for a conventional drain field, so resolve siting and design early¹⁰.

Can you live in an RV, tiny home or manufactured home on your land in Brown County?

We could not confirm a countywide rule for living in an RV or tiny home on private land in Brown County; ask the parcel's town, city or village because general zoning varies by municipality⁵. Do not use Wisconsin State Park camping limits as the answer for private property, because those rules apply to state-park campsites³⁰. A manufactured-home installation is covered by the Uniform Dwelling Code, but local zoning still determines whether that use is allowed on a particular parcel³¹³². Off-grid sanitation is not an unrestricted workaround: Brown County generally prohibits holding tanks for new residential construction unless no approved onsite treatment-and-disposal system is possible, with limited additional exceptions³³. If an existing POWTS is failing and public sanitary sewer is available, connection may be ordered within a period no longer than 1 year after the first violation notice; where sewer is unavailable, a replacement POWTS is required³⁴.

What are the steps to build a home in Brown County?

1. Use the Brown County Land Information Office's GIS map or call (920) 448-6295 to identify the parcel's town, village or city¹⁷.
2. Ask that municipality about general zoning, allowed use, setbacks and whether it or Wisconsin DSPS handles the UDC permit⁴².
3. If the home will use a private well, obtain the permit from the county or municipality with authority⁹.
4. If the parcel lacks public sewer, complete the site evaluation and design, then submit the sanitary-permit application to Brown County²⁶⁶.
5. Ask Brown County's Zoning Division whether shoreland or floodplain approval applies¹⁸.
6. Submit the building application, required approvals and at least 2 plan sets; begin only after plan approval and after the permit is issued and posted³⁵¹³.
7. Contact the inspector named on the permit for each required inspection before work is covered¹⁵.

What should you check before you buy land in Brown County?

First identify the governing town, city or village, then confirm the parcel's current zoning directly with that municipality because county-held municipal zoning may not reflect recent changes²⁰. Ask the same municipality whether it or Wisconsin DSPS handles the building permit¹. Resolve septic feasibility early: only about 5% of Brown County soils lack severe limits for a conventional drain field, and the county requires a sanitary permit for every new POWTS¹⁰⁶. Check the county's shoreland and floodplain overlays before choosing a building site²⁰. Confirm legal access too: a connection to a state highway needs a WisDOT permit, while we could not confirm the rule for access onto a Brown County highway³⁶. The median property-tax bill is about $3,593 a year at an effective rate near 1.5%, and typical home insurance is about $1,111 a year³⁷³⁸³⁹. Finally, ask whether a recent land split received county review and whether public sewer availability could affect an existing septic system²¹³⁴.

Watch-outs

• We could not confirm countywide rules for private-land RV living, tiny homes, minimum dwelling size or ordinary setbacks; ask the parcel's town, city or village before buying⁵.
• A driveway or access connection onto a state highway needs a WisDOT connection permit, separate from anything the county or your town requires; there is no cost to apply, though construction costs may apply³⁶.
• Brown County's posted sanitary and shoreland fee schedule states an effective date of January 1, 2018; fees can change through the annual county budget, so confirm current amounts with the Zoning Division before budgeting a project²⁸.

Sources

1. Wisconsin Uniform Dwelling Code, quoted and re-checked
2. UDC - One- and Two-Family Dwellings, quoted and re-checked
3. Brown County Zoning FAQ, quoted and re-checked
4. Brown County Zoning FAQ, quoted and re-checked
5. Brown County Zoning FAQ, quoted and re-checked
6. Brown County Private Onsite Wastewater Treatment Systems, quoted and re-checked
7. Private Onsite Wastewater Treatment Systems - DSPS, quoted and re-checked
8. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
9. dsps.wi.gov, quoted and re-checked
10. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
11. Wisconsin’s Shoreland Management Program (Wisconsin statewide rule), quoted and re-checked
12. Wisconsin Uniform Dwelling Code, quoted and re-checked
13. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
14. Wisconsin Uniform Dwelling Code, quoted and re-checked
15. UDC Inspection Requirements, quoted and re-checked
16. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
17. Brown County Land Information Office (browncountywi.gov)
18. Brown County Planning and Land Services - Zoning Division (browncountywi.gov)
19. Brown County Zoning FAQ, quoted and re-checked
20. Brown County Land Information Plan 2022-2024, quoted and re-checked
21. Brown County Land Use Planning, quoted and re-checked
22. Brown County Land Use, quoted and re-checked
23. Brown County Private Onsite Wastewater Treatment Systems, quoted and re-checked
24. Private Onsite Wastewater Treatment Systems, quoted and re-checked
25. Brown County Chapter 11 Private On-Site Wastewater Treatment System, quoted and re-checked
26. Brown County Private Onsite Wastewater Treatment Systems, quoted and re-checked
27. Brown County POWTS FAQ, quoted and re-checked
28. Brown County Zoning Fees, quoted and re-checked
29. Brown County Zoning Fees, quoted and re-checked
30. Camping Rules — Wisconsin State Park System (Wisconsin statewide rule), quoted and re-checked
31. UDC - One- and Two-Family Dwellings, quoted and re-checked
32. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
33. browncountywi.gov, quoted and re-checked
34. Brown County Chapter 11 Private On-Site Wastewater Treatment System, quoted and re-checked
35. Wisconsin Administrative Code SPS 320.09 (Wisconsin statewide rule), quoted and re-checked
36. State highway connection permits (driveways & more) (Wisconsin statewide rule), quoted and re-checked
37. Median property tax bill: Bolthole Index county data
38. Effective property tax rate: Bolthole Index county data
39. Typical home insurance premium: Bolthole Index county data

Written October 7, 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.