Trempealeau County, Wisconsin
Town of Sumner is a town in Trempealeau County, Wisconsin. 6 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Trempealeau County page.
Town of Sumner does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
An owner-occupant applying for an erosion-control or construction permit for a dwelling inside the Town of Sumner.
“i vouch that i am or will be an owner-occupant of this dwelling for which i am applying for an erosion control or construction permit without a dwelling contractor certification and have read the cautionary statement regarding contractor responsibility on page 2 of this application.”
Residential construction inside the Town of Sumner administered through Trempealeau County Land Management.
“all residences shall obtain a building permit prior to construction and comply with the provisions of the one and two family dwelling code.”
Work under a Trempealeau County building permit inside the Town of Sumner.
“i expressly grant the building inspector, or the building inspector’s authorized agent, permission to enter the premises for which this permit is sought at all reasonable hours and for any proper purpose to inspect the work which is being done.”
New one- and two-family dwelling construction inside the Town of Sumner.
“includes all required building, hvac, electric & plumbing permits, and final occupancy permit, does not include land use / zoning permit.”
Sanitary systems for development inside the Town of Sumner.
“permit application for a sanitary system (sbd-6398) shall be filled out and signed by a wisconsin licensed plumber. note: permits are issued in the name of the owner of the property. a copy of the recorded deed must be filed with this department prior to issuance of the sanitary permit.”
Land divisions inside the Town of Sumner, an unincorporated town of Trempealeau County.
CSM threshold: < 20 acres (land divisions)
“the trempealeau county subdivision ordinance is in effect for all of the unincorporated areas of trempealeau county. a certified survey map (csm) is required for land divisions of less than 20 acres. the certified survey maps must be reviewed and approved by the trempealeau county department of land management prior to being recorded at the register of deeds office.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Sumner or Trempealeau 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 Sumner publishes no rule on the point, not that none exists. Trempealeau County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Sumner means bringing your own water and power. The kit we’d start with:
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