Fond du Lac County states it directly: the county does not have county-wide zoning. Each of its twenty-one towns controls its own zoning ordinance and has its own permit issuer — so the first question on any rural project here is which town you are in, not what the county requires.
What the county does administer is the shoreland zoning programme, sanitation, floodplain regulation and the land use permits that go with them, through Code Enforcement within the Land Information Department, with variances heard by the Sanitation, Shoreland and Floodplain Zoning Board of Adjustment.
This guide covers unincorporated Fond du Lac County. The City of Fond du Lac, Ripon, Waupun, North Fond du Lac and Campbellsport permit their own construction — the city furnishes the state uniform building permit for one- and two-family dwellings itself.
Twenty-one towns, twenty-one ordinances. The county says plainly that it does not have county-wide zoning and that each town controls its own zoning ordinance and permit issuer. Determine the parcel's zoning through the county GIS mapping program, then work from that township's ordinance — and contact the County Planner if the municipal boundary itself is unclear.
What requires a building permit in Fond du Lac County?
Wisconsin splits construction into two statewide instruments, and neither one is a city invention. One- and two-family homes run on the Wisconsin Uniform Dwelling Code (SPS 320 to 325), a code Wisconsin wrote for itself — the state never adopted the International Residential Code, so IRC chapter references from other states simply do not apply here. Everything that is a public building or a place of employment, including any residential building of three or more units, runs on the Wisconsin Commercial Building Code (SPS 361 to 366), which moved to the 2021 I-codes effective September 1, 2025; plans submitted on or after November 1, 2025 must comply with the 2021 editions. Under Wis. Stat. 101.65(1c) and 101.02(7r)(a), Fond du Lac County may not enforce different technical standards — local ordinances must strictly conform to the state codes.
Typically permit required
- County land use permits before a project starts, where the shoreland, sanitation or floodplain programmes apply
- Sanitary permits for private onsite wastewater systems
- Shoreland zoning approvals, with variances heard by the Sanitation, Shoreland and Floodplain Zoning Board of Adjustment
- Floodplain approvals where mapped
- The town zoning permit, under that town's own ordinance
- The town building permit, issued by that town's permit issuer or contracted inspector
Often exempt
- County zoning approval — there is no countywide zoning ordinance to comply with
- Anything inside a city or village, which permits independently
- Buildings used for farming — exempt from the state code under Wis. Stat. 101.05(5), with farming defined by DSPS rule; a produce stand stays exempt only while the farmer raised substantially all of what it sells
- Primitive rural hunting cabins — carved out of municipal jurisdiction by Wis. Stat. 101.65(1g)
- Bed-and-breakfast establishments as defined by statute (Wis. Stat. 101.05(2))
What is actually local, and what is not
Building standards are statewide. Because the county holds no general zoning, the local layer is unusually town-specific: setbacks, accessory building rules and land use categories vary between neighbouring towns, while the county's shoreland, floodplain and sanitary rules apply consistently on top.
Who handles permitting in Fond du Lac County?
Code Enforcement within Land Information administers the county's land use permits, shoreland zoning, sanitation and floodplain regulation. Towns administer their own zoning ordinances and issue their own permits, with town building inspectors — several of them private inspection agencies — issuing building permits.
| Detail | Information |
|---|---|
| Department | Fond du Lac County Land Information — Code Enforcement and Planning |
| County zoning | None countywide — twenty-one towns control their own ordinances |
| County issues | Land use permits, sanitary permits, shoreland and floodplain approvals |
| Board of Adjustment | Sanitation, Shoreland and Floodplain Zoning Board of Adjustment hears variances |
| Determining zoning | County online GIS mapping program, then the township ordinance |
| Building permits | Town permit issuer or contracted building inspector |
Permit types
Residential permits
A rural house is permitted by the town under the Uniform Dwelling Code, with contractors listing licence numbers and expiry dates on the state electronic building permit form. Town inspectors typically require the county land use permit and county sanitary permit as part of the submittal package, alongside building plans, site plan, energy worksheet and culvert application.
How Wisconsin contractor licensing works
Wisconsin has no state general contractor license for commercial work — the city's own forms note that 2013 Wisconsin Act 20 ended state building-contractor registration on July 2, 2013. For one- and two-family work the state requires a Dwelling Contractor certification on the business and a Dwelling Contractor Qualifier on an individual, and under Wis. Stat. 101.65(1m) Fond du Lac County may not issue a building permit to a contractor who cannot produce them; owner-occupants are exempt. Electricians and plumbers are licensed statewide by DSPS. HVAC contractors only register with the state — there is no state HVAC license — which is exactly where local rules step in. Fond du Lac County licenses no trades; state credentials govern and are recorded on the state permit form at town level.
Commercial permits
Commercial development follows the town's zoning ordinance and the county's shoreland, floodplain and sanitary programmes where they apply. Building code plan review routes to the state or a delegated municipality; the county holds no commercial plan review delegation.
Mechanical work, and where the state reviews directly
Commercial plan review in Wisconsin is a two-step: under Wis. Stat. 101.12(3)(h) the plan approval comes first and the local permit cannot issue without it. The state review trigger is 25,000 cubic feet, plus categorical triggers at any size for schools, high-hazard occupancies and residential buildings of three or more units. At 50,000 cubic feet plans must be prepared, signed and sealed by a Wisconsin-registered design professional, with a supervising professional retained for construction observation. Commercial plumbing plans go to review at sixteen or more fixtures. Where a project sits in the shoreland zone, the town inspector will generally require the county shoreland land use permit in the submittal before issuing.
Fond du Lac County permit costs and fees
County land use and variance application fees are published by Code Enforcement, and the penalty structure is straightforward: start early and the fee doubles.
| Item | Fee or rule |
|---|---|
| Land use permit | Application fee plus required attachments, per the packet cover page |
| After-the-fact land use permit | Required where a project has started, commenced or been completed before permitting — fees are doubled |
| Variance application | Through Code Enforcement, heard by the Board of Adjustment |
| Town building permit | Set by the town or its contracted inspector |
After-the-fact means double. An after-the-fact land use permit application is required if a project has started, commenced or been completed prior to obtaining a permit, and fees for that permit are doubled. Where the project also fails to conform, an after-the-fact variance is required on top.
Trade permits and who may pull them
Trades are state-credentialed and permitted at town level; the county appears on septic, shoreland and floodplain work.
Permit required
- Electrical, plumbing and HVAC — state credentials; town permits
- Private onsite wastewater systems — county sanitary permit
- Shoreland or floodplain work — county land use permit before starting
- One- and two-family general work — state Dwelling Contractor plus Qualifier
Typically exempt
- Projects outside the shoreland, floodplain and sanitary programmes with no county trigger
- Work inside the cities and villages
How to apply for a Fond du Lac County building permit
Twenty-one towns, twenty-one ordinances; use the county GIS mapping program, or ask the County Planner.
Setbacks and land use rules are the town's, not the county's.
Shoreland, floodplain or sanitation triggers make it mandatory.
It travels with the town building permit submittal.
Building plans, site plan, energy worksheet, county land use permit, sanitary permit and culvert application.
Contractor licence numbers and expiry dates are recorded on it.
Review, corrections and what actually causes delay
The variability here is between towns rather than within the county. A contractor working across the county cannot carry assumptions from one township to the next — but the county's shoreland, floodplain and sanitary rules stay constant throughout.
Inspections in Fond du Lac County
Building inspections are performed by the town's inspector or contracted agency. County activity covers sanitary systems, shoreland and floodplain compliance.
Fond du Lac County permit search and official resources
- Fond du Lac County town zoning — the no-countywide-zoning statement and township ordinance links
- Fond du Lac County application forms — land use permits, after-the-fact permits and variances
- DSPS plan review — state triggers and delegated authority lists
- Wisconsin Uniform Dwelling Code — SPS 320 to 325 as published
Frequently asked questions
Does Fond du Lac County have countywide zoning?
No. The county states it does not, and that each of its twenty-one towns controls its own zoning ordinance and has its own permit issuer.
What does the county still regulate?
Shoreland zoning, sanitation, floodplain, and the land use permits associated with them.
How do I find my zoning?
Through the county's online GIS mapping program, then by reference to that township's ordinance. If the municipal boundary is unclear, contact the County Planner.
What if I already started work?
An after-the-fact land use permit application is required, and the fees for it are doubled. A non-conforming project may also need an after-the-fact variance.
Who issues the building permit?
The town's permit issuer or contracted building inspector — not the county.
What goes into a town submittal?
Typically building plans, site plan, energy worksheet, the county land use permit, the sanitary permit and a culvert application, with the state electronic permit form for new homes.
Simplify Fond du Lac County permitting with Alliance Permitting
With no countywide zoning, Fond du Lac County work turns on reading the right township ordinance and clearing the county's shoreland and sanitary tracks before anyone starts. We do both, and keep projects off the doubled-fee list.
Ready to break ground in Fond du Lac County sooner?
Send us the scope and the parcel. We confirm the review path with the Fond du Lac County Land Information Department, assemble the submittal, file it, and track it through issuance — corrections included.
More Wisconsin permitting guides
More Wisconsin permitting guides
This guide is provided by Alliance Permitting for general information about Fond du Lac County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.