Bolthole Index

Kenosha County, Wisconsin

Zoning, building permits and septic rules in the Village of Twin Lakes, Wisconsin

The Village of Twin Lakes, Wisconsin (Kenosha County) runs its own zoning and requires a village building permit before a building is erected, moved or structurally altered12. Septic permits for land inside the village come from the Kenosha County Department of Planning and Development, not the village3. A trailer, camper or tent cannot serve as a permanent principal structure in the village4.

At a glance

Building permit
Required from the Village before building, moving or structurally altering a building2
Zoning
Village Building and Zoning Department administers zoning and land use1
Septic
Kenosha County Department of Planning and Development3
RV living
No trailer, camper or tent as a permanent principal structure4
Minimum home size
800 square feet on the first floor of a principal building in the Residential District5
Building height
35 feet and 2.5 stories in the Residential District6
Occupancy
Certificate of occupancy required from the Building Inspector7
Owner-builder
State rules let an owner-occupant take out the dwelling permits; a village-specific exemption is unconfirmed8

Who to call

Building permits

Village of Twin Lakes Building and Zoning Department

Village building permits, plan review, inspections, zoning and land use inside Twin Lakes

262-877-3700

105 E Main St, Twin Lakes, WI 53181

Septic permits

Kenosha County Division of Planning & Development — POWTS Program

Septic (private onsite wastewater treatment system) permits and maintenance tracking for land in Kenosha County, including inside Twin Lakes

262-857-1895

19600 75th Street, Suite 185-3, Bristol, WI 53104

Contact details are copied from each office’s official page and were checked against it on October 15, 2026.

Off-grid gear

Going off-grid in Village of Twin Lakes means bringing your own water and power. The kit we’d start with:

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Does Twin Lakes, WI have zoning, and what does it mean for RVs, tiny homes and lot rules?

Twin Lakes has its own zoning. The Village Building and Zoning Department administers zoning and land use inside the village19. Kenosha County's zoning ordinance covers unincorporated land, such as the Towns of Brighton, Paris, Randall, Somers and Wheatland, so a Twin Lakes parcel follows the village code instead10.

Rules depend on the district. In the Village's Residential District a principal building needs at least 800 square feet on the ground or first floor5, and buildings may not exceed 35 feet or two and one-half stories6.

Twin Lakes' code does not define or specifically regulate tiny homes in the provisions we reviewed, and we could not confirm a manufactured-home rule. Ask the Building and Zoning Department before you plan either9.

Do you need a building permit in Twin Lakes, and who issues it?

Yes. The Village of Twin Lakes requires a building permit to be applied for and issued before a building is erected, moved or structurally altered2. The Building and Zoning Department handles plan review and inspections9.

Applications include scaled plans in duplicate showing the lot, the use, parking, highway access and floodplain boundaries11. The Building Inspector can inspect as often as necessary and may bar use of a structure until it passes inspection12. Before anyone occupies a building or uses vacant land, the Building Inspector must issue a certificate of occupancy7.

For new one- and two-family homes, Wisconsin's Uniform Dwelling Code adds the statewide rules, and construction starts only after plans are approved and the permit is issued13. We could not find the village's adopted building-code chapter, so confirm the code edition with the department.

Who handles septic permits and wells for land inside Twin Lakes?

Septic permits inside Twin Lakes village come from Kenosha County, not the village. The Kenosha County Department of Planning and Development oversees private onsite wastewater treatment systems for land in the village314. Wisconsin requires a sanitary permit for a home on a private sewage system15, and a master plumber applies on the owner's behalf16.

Existing systems are covered too: every private system needs an inspection and service event, with a minimum maintenance interval of 3 years for most systems that hold a county sanitary permit17.

Property on the village sewer is different. A Village sewer connection permit is required for new connections or changes, and the fee is $25018. We could not confirm a rule for private wells inside the village; ask the county and the Village before drilling.

Can you live in an RV or camper in Twin Lakes, WI?

Not as a permanent home. Twin Lakes prohibits using a trailer, camper or tent as a permanent principal structure within the village4. That rule does not by itself answer every temporary or accessory RV use, so call the Building and Zoning Department about a specific plan9.

The only camping provision we reviewed is for tourist camps in the Agricultural District. They need conditional use approval, at least 1,200 square feet of lot area per unit, a fence or hedge, and a location at least 1,000 feet from the Residential District, and anyone other than the owner may stay no more than 90 days in a year19. That is a campground rule, not permission to live in an RV on your own lot.

Building a home in Twin Lakes: the steps, in order

  1. Talk to the Village Building and Zoning Department about the parcel's district and the code that applies9.
  2. If the lot is not on village sewer, have a master plumber apply to Kenosha County for the sanitary permit; a building permit for a new dwelling on a private system cannot be issued until the sanitary permit is1314.
  3. Apply for the village building permit with scaled plans showing lot, parking, highway access and floodplain boundaries11.
  4. Where zoning approval is needed, applications go first to the Building/Zoning Department, and only complete applications reach the Plan Commission20.
  5. Call for inspections of each phase before covering the work12.
  6. Get the certificate of occupancy from the Building Inspector before moving in7.

What stays with Kenosha County, and what to check before you buy in Twin Lakes

Septic permits and septic maintenance tracking stay with Kenosha County3. Construction or fill inside the county's 100-year floodplain is not allowed except for limited activities approved in advance, and applications must come before any work21. A driveway onto a county trunk highway needs a county highway permit, while state and U.S. highways are handled by the Wisconsin Department of Transportation and local streets by the municipality22.

County-level numbers: Kenosha County's effective property tax rate is 1.7%23, and only about 4.6% of its soils rate as not limited for a conventional septic drain field, so expect a site evaluation or an engineered system on unsewered lots24.

For land outside the village, the county's rules differ; see the Kenosha County page.

Watch-outs

  • Kenosha County's zoning permit and its 7-10 working day review apply in the unincorporated towns, not inside Twin Lakes village, so a county zoning counter may send you back to the village25.
  • We could not confirm whether Twin Lakes grants an owner-builder exemption; Wisconsin lets the occupying owner take out dwelling permits, but other permit and inspection requirements still apply, so ask the Village Building and Zoning Department8.
  • We could not confirm village rules on short-term rentals, private wells or off-grid sanitation; ask the Building and Zoning Department and Kenosha County Planning and Development before relying on any of them9.

Sources

  1. Building Department (Village of Twin Lakes), quoted and re-checked
  2. Article XXIII Enforcement (Village of Twin Lakes), quoted and re-checked
  3. Septic Systems (Village of Twin Lakes), quoted and re-checked
  4. twinlakeswi.gov (Village of Twin Lakes), quoted and re-checked
  5. twinlakeswi.gov (Village of Twin Lakes), quoted and re-checked
  6. twinlakeswi.gov (Village of Twin Lakes), quoted and re-checked
  7. ecode360.com (Village of Twin Lakes), quoted and re-checked
  8. Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  9. Village of Twin Lakes Building and Zoning Department (twinlakeswi.gov)
  10. Zoning & Land Development, quoted and re-checked
  11. Article XXIII Enforcement (Village of Twin Lakes), quoted and re-checked
  12. ecode360.com (Village of Twin Lakes), quoted and re-checked
  13. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
  14. Kenosha County Division of Planning & Development — POWTS Program (kenoshacountywi.gov)
  15. Wisconsin’s Uniform Dwelling Code, quoted and re-checked
  16. Sanitary Forms List, quoted and re-checked
  17. Septic & Pump Tank Maintenance (Village of Twin Lakes), quoted and re-checked
  18. Sewer (Village of Twin Lakes), quoted and re-checked
  19. twinlakeswi.gov (Village of Twin Lakes), quoted and re-checked
  20. Plan Commission (Village of Twin Lakes), quoted and re-checked
  21. Floodplain Protection & Zoning Information, quoted and re-checked
  22. Permitting Process for New Residential Construction, quoted and re-checked
  23. Effective property tax rate: Bolthole Index county data
  24. 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
  25. New Residential Construction, quoted and re-checked

Written October 15, 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.

Answers from the rulebook for Village of Twin Lakes

Village of Twin Lakes’s own rules

  • Building permitRequired

    Buildings erected, moved, or structurally altered inside Twin Lakes village.

    • A building permit must be applied for and issued before the described work.
    • Applications require duplicate, scaled plans and information about lot dimensions, use, families, parking, highway access, and floodplain matters.
    “building permit has been applied for and issued”
  • InspectionsRequired

    Structures, lands, and waters regulated by the Village zoning chapter inside Twin Lakes village.

    • The Building Inspector may inspect as often as necessary.
    • Use or erection may be prohibited until inspection and approval.
    “Inspect all structures, lands, and waters”
  • Certificate of occupancyRequired

    Vacant land, buildings, floodland, and nonconforming uses regulated by Chapter 458 inside Twin Lakes village.

    • The certificate must be issued by the Building Inspector before occupancy, use, development, relocation, reconstruction, substantial improvement, structural alteration, or specified nonconforming use activity.
    • Floodland applications require professional engineer or land-surveyor certification.
    “certificate of occupancy has been issued”
  • Local zoningPresent

    Land inside Twin Lakes village; the Village administers zoning and land use through its Building and Zoning Department.

    “The Building and Zoning Official provides plan review and inspection services”
  • Minimum dwelling sizeSpecified

    Principal buildings in the Residential District.

    • Minimum applies to ground-floor/first-floor area.
    • The cited provision is subject to the Village zoning code and cited cross-references.

    minimum first-floor area: >= 800 square feet (ground floor/first floor)

    “The minimum floor area of a principal building shall be eight hundred (800) square feet on ground floor/first floor.”
  • Building heightSpecified

    Buildings in the Residential District.

    • The limit is both a height and story limit.
    • Cross-references in the code also apply.

    maximum height: <= 35 feet (maximum 2.5 stories)

    “Buildings hereafter erected or structurally altered shall exceed neither thirty-five (35) feet nor two and one-half (2½) stories in height. See Section 17.12.100(A), (B), (C), (D);”
  • Living in an RVProhibited

    Permanent principal-structure use of a trailer, camper, or tent inside the Village Residential District.

    • The prohibition is stated for permanent principal-structure use; it does not by itself resolve every temporary or accessory RV use.
    “No trailer, camper or tent shall be used as a permanent principal structure within the Village of Twin Lakes.”
  • Camping on your landLimited

    Tourist camps involving cabins, trailers, tents, or house cars in the Agricultural District.

    • Conditional use approval is required.
    • At least 1,200 square feet of lot area is required per cabin, trailer, tent, or house car.
    • The camp must be fenced or hedged and at least 1,000 feet from the Residential District boundary.
    • Non-owner occupancy is limited to 90 days in any one year.

    lot area per unit: 1200 square feet · distance from Residential District boundary: >= 1000 feet · maximum non-owner occupancy: <= 90 days per year (any one year)

    “Tourist camps, when such camps provide not less than one thousand two hundred (1,200) square feet of lot area for each cabin, trailer, tent or house car, and when such camp is clearly bounded by a fence or hedge and is located not less than one thousand (1,000) feet, measured in a direct line, from the boundary of the Residential District, provided further, that no person or party other than the owner shall occupy such tourist camp for more than ninety (90) days in any one (1) year.”
  • Who permits septicCounty

    Private onsite wastewater treatment systems serving land inside Twin Lakes village are administered through the Kenosha County Department of Planning and Development.

    • Village zoning materials also state that sewerage systems for secondary dwelling units must comply with Village and Kenosha County standards.
    “The Kenosha County Department of Planning and Development has overseen the Private Onsite Wastewater Treatment System (POWTS) program since July 1, 1980.”
  • Mandatory utility hookupConditional

    New or modified connections to the Village sanitary sewer system inside Twin Lakes village.

    • A sewer connection permit is required for all new connections or modifications to existing connections.
    • No work may begin until Village Sewer Department approval.
    • Inspections must be scheduled at least 24 hours before concealment or backfill.

    sewer connection permit fee: 250 USD

    “A Sewer Connection Permit is required for all new connections or modifications to existing connections”
  • Driveway accessRequired

    Building-permit applications and secondary dwelling units inside Twin Lakes village.

    • Building-permit plans must show existing and proposed highway access or restrictions.
    • A secondary dwelling unit may have only one driveway access for the primary and secondary units from any public road.
    “All applications for a building permit shall be accompanied by plans in duplicate, drawn to scale, showing the location, actual shape and dimensions of the lot of the proposed or existing buildings and accessory structure, the lines within which the building shall be erected, altered or moved, the existing and/or intended use of each building or part of a building, the number of families the building is intended to accommodate, off-street parking and loading areas, existing and proposed highway access or restrictions thereto, high water elevations, floodway and floodplain boundaries, and such other information with regard to the lot and neighboring lots or buildings as may be necessary to determine and provide for the enforcement of this chapter.”
  • Permit processPartial

    Zoning, subdivision, site-plan, and conditional-use applications inside Twin Lakes village.

    • Applications first go to the Building/Zoning Department.
    • Staff determines supplemental materials, completeness, and whether a public hearing is required.
    • Only complete applications are scheduled for Plan Commission review; recommendations go to the Village Board.
    “Only complete applications will be scheduled for Plan Commission review.”

Rules another office applies inside Village of Twin Lakes

Village of Twin Lakes does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Septic inspectionRequired

    POWTS inside Twin Lakes village subject to the Kenosha County maintenance program.

    • All POWTS are subject to an inspection and service event under the retroactive maintenance program.
    • For systems with a sanitary permit issued on or after April 7, 1981, the ordinary minimum maintenance interval is three years, except holding tanks and systems with pretreatment units.

    minimum maintenance interval: 3 years (holding tanks and systems with pretreatment units are excepted)

    “all POWTS to have an inspection and service event occur”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Twin Lakes or Kenosha County directly.

  • Owner-builder exemption — Owner-builder exemption from building-permit or inspection requirements inside Twin Lakes village.
  • Building code adopted — Building-code adoption applicable inside Twin Lakes village.
  • Tiny homes — Tiny-home occupancy inside Twin Lakes village.
  • Manufactured homes — Manufactured-home occupancy inside Twin Lakes village.
  • Off-grid sanitation — Off-grid or non-plumbing sanitation inside Twin Lakes village.
3 more unanswered
  • Well permit
  • Agricultural exemption
  • Short-term rentals

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.

Unanswered questions are usually a sign that Village of Twin Lakes publishes no rule on the point, not that none exists. Kenosha County’s page lists the county offices to call.

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