Manitowoc County, Wisconsin
Town of Schleswig is a town in Manitowoc County, Wisconsin. Town of Schleswig adopts its own zoning, so inside its limits Town of Schleswig’s rules apply, not the county’s. Septic permits inside Town of Schleswig come from Manitowoc County (Manitowoc County Planning and Zoning Department - Sanitary (POWTS)). 8 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Manitowoc County page.
Construction projects inside Schleswig town covered by Manitowoc County's guide to building in unincorporated areas.
“Obtain a zoning/setback permit from Manitowoc County Planning & Zoning Department. An accurate site plan of the proposed development must be submitted. The plan shall show the location and dimensions of the structure, the estimated cost of the structure, the distances to all property lines, the centerline of the road and to the ordinary high water mark if applicable. (See example on previous page.) 10. Obtain Town building permit.”
Wisconsin Uniform Dwelling Code administration in the Town of Schleswig.
“Adopt the Wisconsin Uniform Dwelling Code for the Town of Schleswig”
Zoning changes and variance requests for land inside the Town of Schleswig.
“The Town Board must then approve or deny the request.”
Private sewage-system permitting for land inside Schleswig town.
“All applications for septic systems must be submitted to the County”
Installation, alteration, or land-use change connected to a private sewage system inside Schleswig town.
“No person may install, locate, move, reconstruct, extend, enlarge, alter, convert, or modify a private sewage system or change the land use connected to the system, unless the owner of the property on which such private sewage system is located, or is to be located, holds a valid sanitary permit. All applications for septic systems must be submitted to the County on a State approved form signed by a master plumber or master restricted plumber (sewer).”
New-home sanitation inside Schleswig town.
“New home construction: Obtain a Soils Evaluation to determine what type of septic system will be required. (The Towns of Gibson, Kossuth, Mishicot, Maple Grove, Schleswig, Two Creeks, & Two Rivers do not allow holding tanks for new construction.)”
A parcel inside Schleswig town that is not an existing tract of land and is less than 15 acres.
parcel area threshold: < 15 acres (Only when the parcel is not an existing tract of land.)
“If the parcel is not an existing tract of land and is less than 15 acres, a Certified Survey Map is required.”
New construction inside Schleswig town covered by the county's unincorporated-area building guide.
“Obtain a zoning/setback permit from Manitowoc County Planning & Zoning Department. An accurate site plan of the proposed development must be submitted. The plan shall show the location and dimensions of the structure, the estimated cost of the structure, the distances to all property lines, the centerline of the road and to the ordinary high water mark if applicable. (See example on previous page.) 10. Obtain Town building permit.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Schleswig or Manitowoc 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 Town of Schleswig publishes no rule on the point, not that none exists. Manitowoc County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Schleswig means bringing your own water and power. The kit we’d start with:
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