Walworth County, Wisconsin
Village of Fontana-on-Geneva Lake is a village in Walworth County, Wisconsin. Village of Fontana-on-Geneva Lake adopts its own zoning, so inside its limits Village of Fontana-on-Geneva Lake’s rules apply, not the county’s. Septic permits inside Village of Fontana-on-Geneva Lake come from the county and state together. 5 rules below are quoted from official sources and independently re-checked, most recently on October 22, 2026. Rules for unincorporated land are on the Walworth County page.
Land inside Fontana-on-Geneva Lake village limits; the village's own zoning ordinance and zoning administrator
“zoning administrator beginning the week of june 12, 2023 office hours: wednesdays: 12:00 pm to 4:00 pm”
Land inside Fontana-on-Geneva Lake village limits
“zoning map for village of fontana and etz”
Village of Fontana-on-Geneva Lake does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Dwellings inside Fontana-on-Geneva Lake village covered by Wisconsin SPS 320 to 325 (Uniform Dwelling Code)
“this code applies to all dwellings, dwelling units and foundations for dwelling units, for which the building permit application was made or construction commenced on or after the effective date of this code.”
Installing a private on-site wastewater treatment system on land inside Fontana-on-Geneva Lake village
“no person may purchase or install a private on-site wastewater treatment system unless the owner of the property on which the private on-site wastewater treatment system is to be installed holds a valid sanitary permit issued under this section.”
We looked and could not find an official answer yet. Silence is not permission; ask Village of Fontana-on-Geneva Lake or Walworth County directly.
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 Fontana-on-Geneva Lake publishes no rule on the point, not that none exists. Walworth County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Village of Fontana-on-Geneva Lake means bringing your own water and power. The kit we’d start with:
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