Bolthole Index

Walworth County, Wisconsin

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

41Index Score / 100
#68 of 72 in Wisconsin

Building a home in unincorporated Walworth County, Wisconsin requires county zoning, sanitary and erosion-control permits, followed by a building permit from the appropriate town1. County general zoning covers unincorporated land except the Town of Bloomfield, while three cities control specified extraterritorial areas23. Walworth County issues sanitary permits and inspects septic installations4.

At a glance

Building permit
Required from the appropriate town after county land-use permits are issued1
Zoning
County zoning generally applies to unincorporated land, with municipal and extraterritorial exceptions23
Septic permit
Required and issued by Walworth County LURM45
Owner-builder
An owner who occupies or will occupy the home may take out construction and erosion-control permits6
Manufactured home
Allowed where a single-family residence is permitted if the core living area is at least 22 by 22 feet and the home has an enclosed foundation7
Lot size and setbacks
Depend on the parcel's zoning district89
Private well
Obtain the applicable county or municipal approval before construction10

Who to call

Planning & zoning

Walworth County Land Use & Resource Management Department

Planning, zoning, sanitation and conservation programs and permits

262-741-4972

[email protected]

100 W Walworth Street, Elkhorn, WI 53121

Zoning

Walworth County Zoning

General and shoreland zoning in areas under county jurisdiction

262-741-4972

100 W Walworth Street, Elkhorn, WI 53121

Also useful

Walworth County Permit Process

The county land-use permit sequence before a town building permit

262-741-4972

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

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

Yes. A new home in unincorporated Walworth County first needs county zoning, sanitary and erosion-control permits; after those approvals, the owner must obtain the building permit from the appropriate town building inspector111. Wisconsin's Uniform Dwelling Code applies statewide to new one- and two-family dwellings built since June 1, 1980 and to covered additions and alterations12. Detached garages and accessory buildings are outside that code's coverage, but local land-use permits may still apply12. Construction begins only after the plans are approved and the building permit is issued and posted13. An owner who occupies or will occupy the completed home may take out the construction and erosion-control permits, although the required permits and trade-licensing rules still apply6.

Who issues Walworth County building permits, and how do you reach them?

Walworth County does not issue the final town building permit for a new residence; the appropriate township building inspector does so after the county approvals are complete14. Start with the Walworth County Land Use & Resource Management Department, which administers the county's planning, zoning, sanitation and conservation programs15. Reach LURM at 262-741-4972, [email protected], or 100 W Walworth Street, Elkhorn, WI 5312115. LURM reviews the zoning, sanitary and erosion-control permits together, then directs the applicant to the appropriate town for the building permit14. Permit fees vary by permit type, and starting covered work without approval can trigger a double county fee1611. Walworth County also warns that it does not request wire transfers to complete or approve permits15.

Does Walworth County have zoning?

Yes, but the authority depends on the parcel. Walworth County's General Zoning Code covers unincorporated land except the Town of Bloomfield, while cities and villages are outside county zoning jurisdiction2. Elkhorn, Fontana and Williams Bay also control zoning in their specified extraterritorial areas3. County shoreland zoning reaches land within 1,000 feet of a lake, pond or flowage, or within 300 feet of a river or stream or the landward edge of the 100-year flood elevation, whichever reaches farther17. Within county jurisdiction, minimum lot area, lot width and setbacks depend on the zoning district89. More than one dwelling unit on a property is generally not permitted, although some planned residential developments may receive conditional-use review18. Only agriculturally zoned land may have an agricultural structure on a vacant parcel without a residence19.

How do septic permits work in Walworth County?

Walworth County LURM issues every county sanitary permit and inspects private onsite wastewater system installations for compliance with state codes4. A private system is the property's wastewater facility when the parcel is not served by city sewer or a sanitary district5. Apply for the sanitary permit with the county zoning and erosion-control permits because a building permit for a new dwelling using onsite wastewater cannot issue first1413. Only 12.9% of Walworth County soils rate without severe limitations for a conventional drain field, so obtain a site evaluation and budget for a system suited to the actual soil20. After installation, every private onsite wastewater treatment system must be pumped, inspected and reported to the county under the applicable maintenance requirement21. Wisconsin requires a visual inspection at least once every 3 years22.

Can you live in an RV or tiny home in Walworth County?

We could not confirm a county rule that allows residential or long-term RV occupancy on private land in unincorporated Walworth County. Ask the zoning authority for the parcel before buying land, placing utilities or moving an RV onto the site; that authority may be the county, the Town of Bloomfield, a city or village, or an extraterritorial-zoning city3. We also could not confirm a single countywide minimum dwelling size for tiny homes because dimensions and other development standards depend on the applicable zoning district89. A mobile or manufactured home has a clearer path in county zoning jurisdiction: where a single-family residence is permitted, the home must have a core living area of at least 22 by 22 feet and sit on an enclosed foundation7. Wisconsin's dwelling code also covers qualifying manufactured-home installations, while local zoning and sanitary rules still apply23.

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

  1. Identify the parcel's zoning authority and district; county, town, municipal or extraterritorial rules may control324.
  2. Confirm lot area, width, setbacks, shoreland and floodplain constraints before fixing the house location8925.
  3. Submit a complete county zoning application with the required survey and fee11.
  4. Apply for the sanitary and erosion-control permits; LURM reviews those with the zoning permit14.
  5. After county approval, obtain the building permit from the appropriate township building inspector11.
  6. Secure the applicable access permit before constructing a driveway, and obtain a WisDOT connection permit if access enters a state highway2627.
  7. Request each required construction inspection before covering the work28.
  8. Take occupancy only after a final inspection finds no major health or safety violations29.

What should you check before buying land in Walworth County?

Confirm the parcel's zoning authority first because the county does not control cities, villages, Bloomfield's non-shoreland areas or the extraterritorial zoning areas of Elkhorn, Fontana and Williams Bay3. Check the district's permitted uses, lot dimensions and setbacks, and ask about floodplain approvals before relying on a building envelope2425. Get a septic site evaluation because only 12.9% of county soils rate without severe limitations for a conventional drain field20. Confirm access: the county publishes a driveway-application process, and state-highway access separately needs a WisDOT connection permit2627. A private well also needs the applicable county or municipal approval10. For carrying costs, the median property-tax bill is about $3,964 per year, the effective rate is about 1.4%, and the typical home value is about $411,759303132.

Watch-outs

  • The Town of Bloomfield is outside Walworth County's General Zoning Code, although county shoreland rules may still apply2.
  • Elkhorn, Fontana and Williams Bay control zoning in specified extraterritorial areas, so confirm jurisdiction before applying3.
  • Starting county-regulated work without the required approval can result in a double permit fee1611.

Sources

  1. Walworth County Land Use FAQ (2026 county census)
  2. Zoning | Walworth County, WI, quoted and re-checked
  3. Zoning | Walworth County, WI, quoted and re-checked
  4. Sanitation | Walworth County, WI, quoted and re-checked
  5. Sanitation | Walworth County, WI, quoted and re-checked
  6. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  7. Land Use & Resource Management FAQs, quoted and re-checked
  8. Land Use & Resource Management FAQs, quoted and re-checked
  9. Land Use & Resource Management FAQs, quoted and re-checked
  10. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  11. Land Use & Resource Management FAQs, quoted and re-checked
  12. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  13. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
  14. Walworth County Permit Process (co.walworth.wi.us)
  15. Walworth County Land Use & Resource Management Department (co.walworth.wi.us)
  16. Sanitation Fee Schedule, quoted and re-checked
  17. Zoning | Walworth County, WI (2026 county census)
  18. Land Use & Resource Management FAQs, quoted and re-checked
  19. Land Use & Resource Management FAQs, quoted and re-checked
  20. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  21. Sanitation | Walworth County, WI, quoted and re-checked
  22. Wisconsin Maintenance Program (Wisconsin statewide rule), quoted and re-checked
  23. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
  24. Land Use & Resource Management FAQs, quoted and re-checked
  25. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  26. Permits & Fees | Walworth County, WI, quoted and re-checked
  27. State highway connection permits (driveways & more) (Wisconsin statewide rule), quoted and re-checked
  28. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  29. Information on Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  30. Median property tax bill: Bolthole Index county data
  31. Effective property tax rate: Bolthole Index county data
  32. Typical home value (Zillow): Bolthole Index county data

Written September 28, 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.

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County locator

Walworth County in Wisconsin

41
County map
Walworth County highlighted among the Wisconsin counties · colored by Index score

How Walworth County scores

Seclusion13100% ev.
Self-Sufficiency57100% ev.
Admin Boringness44100% ev.
Durability76100% ev.
Property Autonomy70100% ev.
Carry Cost52100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$412kTypical home
1.4%Property tax
$8,759Land / acre
37"Annual rain
5.9% of yrsSevere drought
2.7 / yr (+2.6)Mid-century 100°F days
12.9 daysMid-century dry spell
1.6" (+5.8%)Mid-century 1-day rain
1.68×Wildfire change factor
100%Forward climate coverage
$1,377Home insurance / yr
1.5% / yrInsurance growth
0.64%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
160,940People within 30 min
10,151,326People within 2 hr
135,121Radius comparison (15 mi)
190.5People / sq mi
0.7%Federal land
89.7%Land at 15% slope or less
12.9%Septic soil without severe limits
43,827 acWorkable land screen
22.5%Wooded land
37 tonsBiomass / forest ac
47.4°FAvg temp

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Answers from the rulebook for Walworth County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Walworth County rules

  • County-wide zoningPresent (with conditions)

    County general and shoreland zoning within unincorporated Walworth County.

    • The General Zoning Code excludes the Town of Bloomfield.
    • Shoreland zoning applies within 1000 feet of a lake, pond, or flowage, or 300 feet from a river or stream or the landward edge of the 100-year flood elevation, whichever is greater.
    • Elkhorn, Fontana, and Williams Bay have extraterritorial zoning areas where Walworth County lacks zoning jurisdiction.
    • Cities and villages are outside the County's zoning jurisdiction.
    “Walworth County administers two zoning codes within unincorporated areas of Walworth County. Both codes are located in Chapter 74 of the Walworth County Code of Ordinances. The County's General Zoning Code applies to all lands within unincorporated Walworth County except for the Town of Bloomfield.”
  • Local zoningVaries (with conditions)

    Aggregate local zoning across Walworth County, including county, town, city, village, and extraterritorial jurisdictions.

    • The County's zoning jurisdiction varies by municipality and area.
    • The County does not have zoning jurisdiction in cities and villages, in the Town of Bloomfield's non-shoreland areas, or in the Elkhorn, Fontana, and Williams Bay extraterritorial zoning areas.
    • The conclusion aggregates rules administered by different local authorities.
    “The Cities of Elkhorn, Fontana, and Williams Bay, have also adopted "Extraterritorial Zoning" (ETZ). This zoning classification gives zoning regulation jurisdiction over lands in unincorporated Walworth County to these communities. The boundaries of the ETZ areas are depicted on the County's zoning map with red hash lines. In these areas, Walworth County does not have jurisdiction for zoning.”
  • Zoning districtsPublished (with conditions)

    Properties within the County's zoning jurisdiction.

    • The property tax key is needed to determine the property's zoning district.
    • There are 31 different zoning districts.
    • Cities, villages, Bloomfield's non-shoreland areas, and ETZ areas may be outside County zoning jurisdiction.

    number of county zoning districts: 31 districts

    “If your property is within the County's zoning jurisdiction, it has been designated by a particular zoning district. Each district outlines the zoning requirements (example: Permitted uses, conditional uses, setback requirements, lot area and width requirements, etc.) that are applicable to each zoning district. There are 31 different zoning districts in Walworth County ranging from:”
  • Minimum lot sizeDistrict specific (with conditions)

    Land within the County's zoning jurisdiction.

    • Requirements depend on the particular zoning district.
    “Each district outlines the zoning requirements (example: Permitted uses, conditional uses, setback requirements, lot area and width requirements, etc.) that are applicable to each zoning district.”
  • SetbacksDistrict specific (with conditions)

    Land within the County's zoning jurisdiction.

    • Requirements depend on the zoning district and may include shoreland setbacks.
    “Each district outlines the zoning requirements (example: Permitted uses, conditional uses, setback requirements, lot area and width requirements, etc.) that are applicable to each zoning district.”
  • Manufactured homesLimited

    Mobile or manufactured homes in areas within the County's zoning jurisdiction that permit a single-family residence.

    • The mobile home must have at least a 22-by-22-foot minimum core living area.
    • It must be placed on an enclosed foundation.
    • The area must permit a single-family residence.

    minimum core living area: 22 by 22 feet

    “The mobile home would have to have at least 22 by 22 feet minimum core living area and be placed on an enclosed foundation to be permitted in an area that would permit a single-family residence.”
  • Accessory dwellingsLimited

    An additional dwelling unit, in-law unit, or guest house in the County's zoning jurisdiction.

    • More than one dwelling unit is generally not permitted.
    • The zoning ordinances provide conditional-use review for planned residential developments in certain zoning districts based on minimum lot-area requirements.
    “In general, more than one dwelling unit on a property is not permitted. The zoning ordinances provide for conditional use review of planned residential developments in certain zoning districts based on minimum lot area requirements.”
  • Who permits septicCounty (with conditions)

    Private onsite wastewater systems in Walworth County.

    • The County inspects installations for compliance with State codes.
    “LURM issues all Sanitary Permits for the County and inspects all system installations for compliance to State codes.”
  • Septic permitRequired

    Private onsite wastewater systems in Walworth County.

    • Public sewer or a sanitary district may apply instead of a private septic system.
    • State and County sanitary requirements apply.
    “LURM issues all Sanitary Permits for the County and inspects all system installations for compliance to State codes. Wastewater carries disease-causing bacteria, infectious viruses, household chemicals, and excess nutrients that must be removed. If the property is not hooked up to city sewer or a sanitary district, the septic system is your wastewater treatment facility (POWTS - Privately Owned Wastewater Treatment System).”
  • Septic inspectionRequired

    Private onsite wastewater systems in Walworth County.

    • Every POWTS must be pumped, inspected, and reported to the County under the cited State-law requirement.
    • Installation inspections are conducted for compliance with State codes.
    “State law requires every Private Onsite Wastewater Treatment System (often referred to as a septic system) to be pumped, inspected and reported to the County in which the system is located.”
  • Agricultural exemptionConditional

    Agricultural-related structures on a vacant parcel in the County's zoning jurisdiction.

    • Only agricultural-zoned land may have agricultural-related structures on a parcel without a residence.
    “No. Only Agricultural zoned land can have agricultural-related structures on a parcel without a residence.”
  • Subdividing landRegulated (with conditions)

    Land divisions, subdivisions, and certified survey maps in Walworth County.

    • The County has plat-review authority and administers the County Subdivision Control Ordinances.
    “The following ordinances are regulated: Animal Waste Management Ordinance Citation Ordinance Erosion Control and Storm Water Management Ordinance Non-Metallic Mining Ordinance Renewable Energy Ordinance Sanitary Ordinance Shoreland Zoning Ordinance Subdivision Ordinance Telecommunication Tower Ordinance Zoning Ordinance”
  • Driveway accessRequired

    Driveways accessing County-maintained roads or County rights of way.

    • The Public Works application requires the appropriate form and fee.
    • The application is reviewed for compliance before contact by fax or phone.
    “As part of its maintenance responsibility, Walworth County Public Works is responsible for controlling all construction activities in County-maintained rights of way, including driveways that access County roads. This page should help you obtain a right of way permit:”
  • Short-term rentalsLimited

    Short-term rental operations in unincorporated Walworth County.

    • A County short-term-rental license is required under the County licensing code.
    • A state license must be obtained before the County can approve the license.
    • Private wells and septic systems may trigger additional testing, review, or inspection requirements.

    adoption date: April 19, 2018

    “On April 19, 2018, the Walworth County Board of Supervisors adopted a Short Term Rental Licensing code for properties in unincorporated Walworth County.”
  • Permit feesPublished (with conditions)

    County sanitation and right-of-way permit fees.

    • Fees vary by permit type.
    • The sanitation fee schedule is effective January 1, 2025.
    • Work started without a permit is charged double the permit fee on the sanitation schedule.

    large scale sanitary system fee: 1100 USD (3,000 gallons/day or greater) · reinspection fee: 100 USD

    “SANITATION FEE SCHEDULE Effective January 1, 2025 [...] Large Scale System (3,000 gallons/day or greater) *$1,100 [...] Reinspection Fee $100 [...] Work Started without a Permit Double Permit Fee”
  • Permit processPublished (with conditions)

    County zoning, sanitary, erosion-control, and related permit processing.

    • A zoning application must be complete and include a plat of survey and required fee.
    • Construction started without permit approval is charged a double fee.
    • If a County zoning permit is issued, the owner must obtain a building permit through the appropriate Township Building Inspector.
    • The zoning permit process includes review, issuance or denial, possible appeal within 30 days, and a foundation survey or inspection/waiver requirement.

    zoning permit validity: 2 years · appeal period: 30 days (appeal to Walworth County Board of Adjustment)

    “A zoning permit application form must be completely filled out and a plat of survey (prepared by a registered land surveyor showing all existing and proposed structures) shall be attached to the permit application, including the required fee. Any construction started without permit approval will be charged a double fee. Additional supporting materials may be required for certain projects such as building plans, grading plans, existing and proposed contours, etc.”

Wisconsin rules that apply here

  • Building permitRequired

    New one- and two-family dwellings covered by Wisconsin’s Uniform Dwelling Code, including covered additions and alterations.

    • The cited brochure states that permit requirements for alterations and additions vary by municipality.
    • Construction begins only after plans are approved and the building permit is issued and posted.
    • The enforcing jurisdiction may be the municipality, county, or state.
    • Local zoning, land-use, floodplain, sanitary, well, driveway, utility, and other approvals may also be required.
    • A building permit cannot be issued for a new dwelling using a private onsite wastewater treatment system until a sanitary permit has been issued.
    “Begin construction after plans are approved and building permit is issued and posted.”
  • Owner-builder exemptionConditional

    An owner obtaining construction and erosion-control permits for a dwelling covered by the Wisconsin Uniform Dwelling Code.

    • The owner must occupy the home currently or will occupy it after completion.
    • The exemption permits the owner to take out the construction and erosion-control permits without the state-certified Dwelling Contractor and Dwelling Contractor Qualifier arrangement described for contractors.
    • The owner-occupancy statement must be checked on the permit application if the applicant does not possess Dwelling Contractor certification.
    • The source describes an owner-occupancy condition; it does not establish a general exemption for non-occupant owners.
    “The construction and erosion control permits must be taken out by a state-certified Dwelling Contractor, who also employs a state-certified Dwelling Contractor Qualifier, or by the owner who occupies the home currently or will after completion.”
    One more reviewed finding on this topic
    • Available (with conditions) — An owner who currently occupies or will occupy the home after completion.
      “The construction and erosion control permits must be taken out by a state-certified Dwelling Contractor, who also employs a state-certified Dwelling Contractor Qualifier, or by the owner who occupies the home currently or will after completion.”
  • Building code adoptedAdopted (with conditions)

    Public buildings, places of employment, and multifamily buildings subject to Wisconsin's commercial building code.

    • The Division of Industry Services reviews plans before construction for compliance with state statutes and building codes.
    • Local certified municipalities may provide plan review and inspection services for certain building types.
    • The Wisconsin Commercial Building Code adopted the 2021 ICC effective September 1, 2025; plans submitted November 1, 2025 or later must comply with the updated code.
    • Municipalities may have grandfathered fire detection, prevention, and suppression ordinances under 2013 Act 270.

    2021 ICC adoption date: September 1, 2025 (The deadline for building plan compliance was delayed.) · updated-code plan-submission deadline: November 1, 2025 (Plans submitted on or after this date must comply with the updated Commercial Building Code.)

    “2013 Act 270 establishes a uniform commercial building code in Wisconsin while allowing municipalities to grandfather fire detection, prevention, and suppression ordinances”
    2 more reviewed findings on this topic
    • Adopted (with conditions) — New one- and two-family dwellings covered by Wisconsin's Uniform Dwelling Code.
      “The statewide code for new homes in Wisconsin is the Uniform Dwelling Code (UDC), SPS 320-325 of the Wisconsin Administrative Code and its adopted references. It is a uniform building code that applies across the state.”
    • Adopted (with conditions) — New one- and two-family dwellings in Wisconsin built since June 1, 1980.
      “The Uniform Dwelling Code (UDC) is the statewide building code for one- and two-family dwellings built since June 1, 1980.”
  • InspectionsRequired

    Each phase of construction of a one- or two-family dwelling governed by the Wisconsin Uniform Dwelling Code.

    • Inspections are called for before each phase is covered up.
    • The local inspector’s instructions apply.
    • The inspector has two business days after the inspection request and the work being ready to inspect before the work may be covered.
    • Inspections check compliance with the code and may also check compliance with approved plans.
    • The UDC is enforced by municipal or county building inspection departments or the Wisconsin Division of Industry Services.

    inspection response period: 2 business days (After the inspection request and the work is ready to inspect, before the work may be covered up.)

    “Call for inspections of each phase of construction prior to covering it up - check the local inspector’s instructions. The inspector has two business days after the date that you make the inspection request and the work is ready to inspect, before you may cover up the work. Inspectors will check for compliance with the code.”
    One more reviewed finding on this topic
    • Required — UDC-covered construction in Wisconsin, including Walworth County.
      “Call for inspections of each phase of construction prior to covering it up - check the local inspector’s instructions. The inspector has two business days after the date that you make the inspection request and the work is ready to inspect, before you may cover up the work. Inspectors will check for compliance with the code.”
  • Certificate of occupancyLimited

    Occupancy of a dwelling governed by Wisconsin’s Uniform Dwelling Code after construction.

    • Occupancy follows a final inspection in which no major health or safety violations are found.
    • Some municipalities will issue occupancy permits; the state source does not state that every municipality must issue a certificate or occupancy permit.
    • The dwelling exterior must be completed within two years after permit issuance.

    exterior completion deadline: 2 years after permit issuance

    “Take occupancy after receiving a final inspection in which no major health or safety violations are found. (Some municipalities will issue occupancy permits.) Also, the dwelling’s exterior must be completed within two years after permit issuance.”
    One more reviewed finding on this topic
    • Limited — Occupancy of UDC-covered dwellings after construction.
      “Take occupancy after receiving a final inspection in which no major health or safety violations are found. (Some municipalities will issue occupancy permits.) Also, the dwelling’s exterior must be completed within two years after permit issuance.”
  • Building heightSpecified

    Structures within 75 feet of the ordinary high water mark of navigable waters in Wisconsin shoreland zoning areas.

    • The DNR model ordinance identifies this as the NR 115.05(1)(f) height standard for county shoreland ordinances.
    • The prohibition does not extend beyond 75 feet from the ordinary high water mark under the stated standard.
    • Counties may regulate height beyond 75 feet through local ordinance.

    maximum structure height within 75 feet of ordinary high water mark: <= 35 feet (A structure taller than 35 feet is prohibited within the specified area.)

    “A structure taller than 35 feet within 75 feet of the ordinary high-water mark of any navigable waters is prohibited”
  • Off-grid sanitationLimited

    Sanitation for buildings with plumbing fixtures that are not connected to a public sewer in Wisconsin.

    • Off-grid wastewater handling must provide for treating, recycling, dispersing, or holding wastewater.
    • Private onsite wastewater treatment systems remain subject to Wisconsin POWTS requirements and applicable plan review or permits.
    • The rule does not establish unrestricted approval for any particular composting toilet, privy, holding tank, or other device.
    “Where plumbing fixtures exist in a building that is not connected to a public sewer system, suitable provision shall be made for treating, recycling, dispersing or holding the wastewater.”
  • Well permitLimited

    Construction of private wells statewide in Wisconsin.

    • A Well Construction Notification Number must be obtained before constructing a new private well that is not a high-capacity well.
    • Exceptions to the notification requirement include high-capacity wells, reconstruction of existing wells, and wells on Native American property; high-capacity wells or other wells requiring written DNR approval follow the approval requirements.
    • Some DNR-approved county ordinances additionally require a well permit before construction.
    • A Well Construction Report must be submitted to DNR within 30 days after construction.

    well construction notification fee: 50.5 USD (Fee and notification number are not refundable or transferable.) · well construction report deadline: 30 days after construction

    “Wisconsin law requires that a property owner provide advance notice to DNR before construction of any new private well that is not a high capacity well, and advance notice of any heat exchange drillhole construction (geothermal system) that does not require a written DNR approval.”
    One more reviewed finding on this topic
    • Required — A home using a private well in Wisconsin, including Walworth County.
      “Obtain sanitary or well permits from the county or municipality if the home will use a private sewage system or well.”
  • Building in a floodplainLimited

    Development in Wisconsin floodplains, including floodway and floodfringe areas.

    • Floodplain development typically requires a land use permit and a building permit.
    • In the floodway, new structures, substantially improved or damaged structures, hazardous or solid-waste storage, and wells or sewage systems are prohibited.
    • Floodway development is limited to open-space uses with low flood-damage potential unless the stated analysis or FEMA map-revision condition is met.
    • Floodfringe structures must have the first floor elevated two feet above base flood elevation and have dryland access.
    • Substantially damaged structures are subject to the stated 50-percent threshold and applicable elevation or relocation requirements.

    floodfringe first-floor elevation: >= 2 feet above base flood elevation (for all new and substantially damaged or improved structures in the floodfringe)

    “In the floodway, new structures, substantially improved or damaged structures, the storage of hazardous/solid waste and wells/sewage systems are prohibited.”
    One more reviewed finding on this topic
    • Required — UDC-covered construction requiring floodplain, zoning, or land-use approval.
      “Obtain floodplain, zoning and land use approvals from the county and municipality having authority.”
  • Campground & park staysLimited

    Occupancy of recreational vehicles, including recreation trailers, pickup truck campers, motor homes, camper vans, and truck campers, at Wisconsin State Park System campsites.

    • Camping reservations are required before setting up on any site.
    • Wheeled camping units must be parked on the campsite driveway.
    • A campsite may be occupied by no more than one recreation trailer, pickup truck camper, or motor home.
    • Pickup campers or motor homes pulling a trailer are treated as a single unit.

    recreational vehicles per campsite: <= 1 unit (Pickup campers or motor homes pulling a trailer are treated as a single unit.)

    “A campsite may be occupied by no more than one recreation trailer, pickup truck camper or motor home. Pickup campers or motor homes pulling a trailer are treated as a single unit.”
    One more reviewed finding on this topic
    • Limited — Temporary camping at Wisconsin State Park System properties.
      “Camping reservations are required and can be made up to 11 months in advance of your planned date of occupancy. Campers must make a reservation before setting up on any site.”
  • county zoning authorityGeneral

    Wisconsin counties may enact and amend county zoning ordinances under Wis. Stat. § 59.69 for participating towns, which are generally unincorporated areas.

    • County zoning applies only in towns that have adopted county zoning.
    • After a comprehensive revision of the county zoning ordinance, the town has authority to decide whether county zoning applies in the town.
    • Towns have authority to approve or disapprove amendments to a county zoning ordinance.
    • A town that does not fall under county zoning may be unzoned or may have its own town zoning ordinance.
    “Counties exercise zoning ordinances under s. 59.69, Wis. Stats. County zoning only applies in towns that have adopted county zoning.”
  • county building authorityGeneral

    County authority to enforce the statewide Uniform Dwelling Code and administer building inspection and permitting for new one- and two-family dwellings in Wisconsin, including unincorporated areas where the county is the responsible inspection authority.

    • The Uniform Dwelling Code applies to new one- and two-family dwellings built since June 1, 1980 and their additions and alterations.
    • The UDC is enforced by municipal or county building inspection departments or the Wisconsin Division of Industry Services.
    • Permit requirements for alterations and additions vary by municipality.
    • Construction begins only after plans are approved and the building permit is issued and posted.
    • Counties enforce the statewide UDC; the source does not establish authority for counties to adopt a separate, more or less stringent residential code.
    “The UDC is primarily enforced by municipal or county building inspectors who must be state-certified. In lieu of local enforcement, municipalities have the option to have the state provide enforcement for just new homes.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Minimum dwelling size — Minimum dwelling size requirements in Walworth County zoning districts.
  • Lot coverage — Lot-coverage requirements in Walworth County zoning districts.
  • Living in an RV — Residential or long-term occupancy of recreational vehicles on land in unincorporated Walworth County.
  • Camping on your land — Temporary camping on private land in unincorporated Walworth County.
  • Tiny homes — Tiny-home occupancy in unincorporated Walworth County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Walworth County, Wisconsin

Is Walworth County a good place to live off-grid or homestead?

Walworth County scores 41/100 on the Bolthole Index, a marginal county profile. Its strengths: mixed durability signals and a stronger property-autonomy legal backdrop. Watch-outs: about 160,940 people within a 30-minute drive.

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

Walworth County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Walworth County Land Use & Resource Management Department. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Walworth County, Wisconsin?

Land in Walworth County runs about $8,759 per acre, based on the latest county data.

What is the water situation in Walworth County?

Walworth County gets about 37" of rain a year, with severe drought in roughly 5.9% of years.

How remote is Walworth County?

A representative private-land location has about 160,940 people within a 30-minute drive and 10,151,326 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Walworth County means bringing your own water and power. The kit we’d start with:

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How Walworth compares in Wisconsin

Compare side-by-side →See all 72 Wisconsin counties ranked →