Outagamie County, Wisconsin
Town of Seymour is a town in Outagamie County, Wisconsin. Septic permits inside Town of Seymour come from Outagamie County (Outagamie County Development & Land Services, Sanitary (POWTS) · 920-832-6032). 7 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Outagamie County page.
New one- and two-family homes inside Seymour town.
“The owner, builder or agent shall complete the application form and the online building permit system will route it to the enforcing jurisdiction.”
Town of Seymour does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Private onsite wastewater systems serving land inside Seymour town, where public sewer is not available.
“Development and Land Services (DLS) administers and enforces County ordinances for zoning, stormwater and erosion control, sanitary systems, shorelands, floodplains, airports, and land divisions.”
New, replaced, changed, or increased-use private onsite wastewater systems serving land inside Seymour town when public sewer is not available.
“A Sanitary Permit is required before any construction begins and before a building permit can be issued. Permits are typically needed for new systems, replacements, changes to an existing system, or added use (such as an addition that increases wastewater flow).”
New construction inside Seymour town that is not served by public sewer.
“If public sewer is not available, new construction will need a Private Onsite Wastewater Treatment System (POWTS)- often called a septic system. [...] A Sanitary Permit is required before any construction begins and before a building permit can be issued.”
Land divisions inside Seymour town subject to County jurisdiction.
“A land division usually means creating new lots/parcels or changing lot lines in a way that affects buildability or access. [...] Most requests are reviewed as a Certified Survey Map (CSM) or a subdivision plat, depending on size and complexity.”
A new, removed, relocated, validated, altered, or change-of-use driveway connection from land inside Seymour town to an Outagamie County trunk highway.
“On highways under Outagamie County Highway Department jurisdiction, a CTH connection permit is required when property owners and local agencies want to:”
Development inside Seymour town on properties in FEMA-mapped Special Flood Hazard Areas or other County-adopted floodplain districts.
“Floodplain rules generally apply to properties in FEMA-mapped Special Flood Hazard Areas and other County-adopted floodplain districts. [...] County review is often required for new buildings or additions, major remodels, fill/grading/excavation, changes to drainage or crossings, and repairs or replacement after flood damage.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Seymour or Outagamie 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 Seymour publishes no rule on the point, not that none exists. Outagamie County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Seymour means bringing your own water and power. The kit we’d start with:
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