Juneau County, Wisconsin requires a Uniform Dwelling Code building permit for every new one- or two-family dwelling, including stick-built, modular and manufactured homes1. The permit comes from the municipality when it has delegated authority and otherwise from Wisconsin DSPS2. The county itself zones only shoreland, wetland and floodplain areas, and the Juneau County Sanitation & Zoning Department issues sanitary (septic) permits for the whole county34.
At a glance
- Building permit
- Required for new stick-built, modular and manufactured one- or two-family dwellings1
- Zoning
- County shoreland, wetland and mapped floodplain zoning applies; other zoning depends on the town35
- Septic permits
- Juneau County Sanitation & Zoning Department issues sanitary permits6
- Owner-builder allowance
- Owner-occupants may apply without Dwelling Contractor Certification; required building permits remain7
- Shoreland setback
- Generally at least 75 feet from the ordinary high water mark; county review is required8
- Shoreland zone extent
- Within 1,000 ft of a lake/flowage, 300 ft of a navigable stream, and all floodplains9
- Manufactured homes
- A new manufactured-home installation needs a UDC permit; placement rules still apply10
- Septic soil difficulty
- Only 0.5% of county soils are free of severe limits for a conventional drain field11
Who to call
Zoning
Juneau County Sanitation & Zoning Department
Land use, shoreland zoning, floodplain zoning, sanitary (septic) permits and surveying for Juneau County
650 Prairie Street, Mauston, WI 53948
Zoning
Juneau County Shoreland Zoning
Shoreland Building Permits and the county's Shoreland Ordinance, covering land near lakes, flowages, navigable streams and floodplains
Septic permits
Juneau County Sanitation (Sanitary/Septic Permits)
Sanitary permits for septic systems in Juneau County
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in Juneau County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Juneau County, Wisconsin?
New stick-built, modular and manufactured one- or two-family homes in unincorporated Juneau County, Wisconsin need a Uniform Dwelling Code (UDC) building permit12. Wisconsin's UDC covers one- and two-family dwellings built since June 1, 198013. Start with the parcel's municipality to confirm how to file; delegated municipalities issue the UDC permit, and otherwise the application goes to Wisconsin DSPS1412. Submit plans, required project data, contractor license information and the application fee; the approved fee must be paid before issuance1514. Owner-occupants may apply without Dwelling Contractor Certification, but still need the construction or erosion-control permit7.
Who issues building permits in Juneau County?
Juneau County's Sanitation & Zoning Department handles county land-use, shoreland and sanitary permits at 650 Prairie Street, Mauston, WI 53948; call (608) 847-939116. For UDC building permits and inspections, use Wisconsin DSPS's delegated-agent list to identify the responsible authority17.
Local building-permit authorities include Mauston18, New Lisbon19, Elroy20, Town of Necedah21, Village of Wonewoc22, Village of Camp Douglas23, Village of Lyndon Station24, Village of Union Center25, Village of Hustler26, Town of Lyndon27. Sanitary permits for private sewage systems remain with Juneau County's Sanitation & Zoning Department, with DSPS reviewing plans outside the county's delegated categories428. Required UDC inspections must be performed by appropriately certified personnel; notify the inspector named on the permit when each stage is ready2930.
Does Juneau County have zoning?
In unincorporated Juneau County, county zoning covers shoreland, wetland and mapped floodplain areas; these rules do not establish general countywide zoning3. Floodplain districts include Floodway, Floodfringe, General Floodplain and Flooded Agriculture-Cranberry Farms, with boundaries on official floodplain maps31. A county land-use permit is required before floodplain development, repairs, additions or changes of use, including sewer and water facilities32.
Shoreland zoning covers land within 1,000 feet of a lake or flowage, 300 feet of a navigable river or stream, and all floodplains; construction requires county approval first9. County shoreland rules generally require a 75-foot water setback33. For each main building, shoreland-wetland lots need 20,000 square feet and 100 feet of water frontage without public sewer, or 10,000 square feet and an average 65 feet of frontage with public sewer3435.
Local zoning authorities include Mauston36, New Lisbon37, Elroy38, Town of Necedah39, Village of Necedah40, Village of Wonewoc41, Village of Camp Douglas42, Village of Lyndon Station43, Town of Lyndon44. County sanitary permitting remains separate from municipal zoning4.
How do septic permits work in Juneau County?
Every building in Juneau County that uses a private sewage system needs its sanitary permit before any local building permit can be issued45. The Sanitation & Zoning Department handles sanitary permits for new systems, replacements, modifications, repairs, reconnections and non-plumbing systems such as outhouses and transfer tanks4. Juneau County may review at-grade and mound systems with design flows up to 1,000 gallons per day, while individual site designs and plans outside the county's delegated categories must go to Wisconsin DSPS; plan review may also be submitted to DSPS4628. A licensed plumber must complete the sanitary-permit application4. Wisconsin requires a visual inspection at least once every three years47. Only 0.5% of county soils are free of severe limitations for a conventional drain field, so obtain a site evaluation before buying11.
Can you live in an RV or tiny home on your land in Juneau County?
We could not confirm a countywide Juneau County rule for long-term RV living or tiny-home occupancy on an individual private parcel; ask the parcel's town and the Sanitation & Zoning Department16. Juneau County's floodplain campground rules require DATCP approval, a county land-use permit, flood-warning procedures and evacuation terms; camping equipment may not be permanently attached, used as a habitable structure or obstruct floodwater flow48. Campgrounds need a 72-hour flood-warning procedure49. Campground RVs must be highway-ready, satisfy applicable floodplain standards, or leave the floodplain after no more than 180 consecutive days for at least 24 hours50. These campground conditions do not confirm permission to live in an RV on an individual private parcel; ask the county department about the proposed use16. A new manufactured-home installation needs a UDC permit, which does not settle local placement or occupancy requirements10.
What are the steps to build a home in Juneau County?
- Use the state delegated-agent list to determine whether the parcel's municipality or Wisconsin DSPS handles the UDC permit and inspections17.
- Check the site with Juneau County: work in a floodplain-zoned area needs a land-use permit before it begins, and shoreland construction also requires county review5133. A floodplain application requires project and ownership details plus a scaled site plan showing waterways, structures, access, septic or water systems, floodplain limits and elevations52.
- Have a licensed plumber apply for the sanitary permit; a local building permit for a home using private sewage cannot be issued first445.
- Submit the UDC application, plans, required project data, contractor license information and fee to the responsible authority2.
- Notify the inspector named on the UDC permit when the footing, foundation and reinforcement, rough-work, insulation and final stages are ready53.
- Confirm the final-approval requirement with the responsible UDC authority; we could not confirm a countywide certificate-of-occupancy requirement.
What should you check before buying land in Juneau County?
Only 0.5% of Juneau County soils are rated without severe limitations for conventional septic drain fields, so obtain a site evaluation before buying11. Ask the Sanitation & Zoning Department to confirm shoreland and floodplain boundaries and the proposed building site16.
A smaller sewered shoreland-wetland lot may qualify for a single-family dwelling if it has at least 7,500 square feet and 50 feet of width at both the building setback line and waterline, but a zoning permit is required54. The use must be allowed, the lot must have been recorded and separately owned from abutting land before the applicable ordinance's effective date, and dimensional requirements must be met insofar as practical; otherwise the ordinary lot-size requirements apply54. Ask the county zoning administrator to verify eligibility before treating a small waterfront lot as buildable16.
Watch-outs
- We could not confirm long-term RV or tiny-home occupancy rules for individual private parcels in Juneau County; ask the parcel's town and the Sanitation & Zoning Department before buying for that use16.
- Juneau County floodplain permit, inspection and administrative fees vary, and the current fee schedule is available from the County Zoning & Sanitation Department55.
Sources
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- Sanitation & Zoning, quoted and re-checked
- Juneau County Sanitation (Sanitary/Septic Permits) (co.juneau.wi.gov)
- Local Land Use Regulations and Comprehensive Planning Status Inventory Project (Wisconsin statewide rule), quoted and re-checked
- Delegated Agents for Private On-Site Wastewater Treatment System (POWTS) Plan Review (2026 county census)
- Permit Requestor FAQs, quoted and re-checked
- Wisconsin’s Shoreland Management Program (Wisconsin statewide rule), quoted and re-checked
- Juneau County Shoreland Zoning (co.juneau.wi.gov)
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- 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
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- One- & Two-Family (Uniform Dwelling Code), quoted and re-checked
- One- & Two-Family (Uniform Dwelling Code), quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- Juneau County Sanitation & Zoning Department (co.juneau.wi.gov)
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- Mauston: Zoning / Planning (Juneau County), quoted and re-checked
- New Lisbon: Chapter 238 Building Construction - City of New Lisbon, WI (Juneau County), quoted and re-checked
- Elroy: When Do I Need a Building Permit? (Juneau County), quoted and re-checked
- Town of Necedah: Town of Necedah Ordinance 10, Land Use (Juneau County), quoted and re-checked
- Village of Wonewoc: Application for Building Permit (Juneau County), quoted and re-checked
- Village of Camp Douglas: Village of Camp Douglas Chapter 17 Building Code (Juneau County), quoted and re-checked
- Village of Lyndon Station: Chapter 395 - Zoning (Juneau County), quoted and re-checked
- Village of Union Center: UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Juneau County), quoted and re-checked
- Village of Hustler: UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Juneau County), quoted and re-checked
- Town of Lyndon: Forms & Permits | Town of Lyndon - Juneau (Juneau County), quoted and re-checked
- Juneau County POWTS Plan Review Delegation Letter, quoted and re-checked
- UDC Inspection Agency, quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- General Shoreland Zoning Provisions, quoted and re-checked
- Juneau County Code, Appendix A, Sec. 3.1 — Lots not served by public sanitary sewer, quoted and re-checked
- Juneau County Code, Appendix A, Sec. 3.2 — Lots served by public sanitary sewer, quoted and re-checked
- Mauston: Building & Zoning - City of Mauston (Juneau County), quoted and re-checked
- New Lisbon: Table of Contents - City of New Lisbon, WI (Juneau County), quoted and re-checked
- Elroy: Zoning - Ordinances - Elroy, WI (Juneau County), quoted and re-checked
- Town of Necedah: Ordinance 10 Land Use (Juneau County), quoted and re-checked
- Village of Necedah: Village of Necedah Comprehensive Plan 2024-2044 (Juneau County), quoted and re-checked
- Village of Wonewoc: Application for Building Permit (Juneau County), quoted and re-checked
- Village of Camp Douglas: Village of Camp Douglas Chapter 22 Zoning Ordinances (Juneau County), quoted and re-checked
- Village of Lyndon Station: Chapter 395 - Zoning (Juneau County), quoted and re-checked
- Town of Lyndon: Town of Lyndon Chapter 22, Subchapter 2: Standard Zoning Districts (Juneau County), quoted and re-checked
- Requirement for Plan Review Prior to Issuing Local Permits, quoted and re-checked
- Delegated Agents for Private On-Site Wastewater Treatment System (POWTS) Plan Review, quoted and re-checked
- Wisconsin Maintenance Program (Wisconsin statewide rule), quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
- UDC (Uniform Dwelling Code / One- and Two-Family Dwellings), quoted and re-checked
- Juneau County Code, Appendix A, Sec. 3.3 — Substandard lots, quoted and re-checked
- Juneau County Floodplain Zoning Ordinance, quoted and re-checked
Written October 10, 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.