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Winnebago County, Wisconsin

Zoning, building permits and septic rules in Town of Omro, Wisconsin

Town of Omro is a town in Winnebago County, Wisconsin. Town of Omro adopts its own zoning, so inside its limits Town of Omro’s rules apply, not the county’s. Septic permits inside Town of Omro come from Winnebago County (Winnebago County Planning & Zoning Department, Sanitary (POWTS) Program · 920-232-3344). 3 rules below are quoted from official sources and independently re-checked, most recently on November 9, 2026. Rules for unincorporated land are on the Winnebago County page.

Answers from the rulebook for Town of Omro

Town of Omro’s own rules

  • Building permitRequired

    Construction, enlargement, alteration, other improvement, installation of a manufactured building, qualifying moved buildings, and removal or demolition of buildings or structures inside the Town of Omro.

    • The Town permit must be obtained before the work commences.
    • For a moved building, the stated threshold is an improvement value exceeding $1,000.
    • The fee is set by the Town Board from time to time.
    • A Town permit is not issued until Winnebago County has issued any required zoning permits.
    • Where sanitary sewer is unavailable, a Town building permit is not issued until a county sanitary permit is issued; otherwise, a sanitary permit must be issued by the sanitary district providing service.
    • The permit expires within six months unless substantial construction or other activities have commenced; it is valid for one year from issue and may be renewed once without charge.

    moved-building improvement-value threshold: > 1000 USD (Applies when moving a building onto a parcel.) · permit validity: 1 year (May be renewed for one additional year without charge.) · commencement period before expiration: 6 months (Permit expires unless substantial construction or other activities have commenced.)

    “Every person who constructs, enlarges, alters or otherwise improves a building or structure; [...] shall seek and obtain a building permit from the Town of Omro”
  • Local zoningPresent (with conditions)

    Land inside the Town of Omro, Winnebago County, Wisconsin; county zoning permits are administered by the Winnebago County Zoning Department rather than by the Town of Omro.

    • The Town of Omro issues its own erosion-control permits; this exception does not alter the County's stated zoning-permit jurisdiction.
    “County Zoning Jurisdiction - The Winnebago County Zoning Department issues all county zoning permits [...] in the towns of [...] Omro”
  • Who permits septicCounty (with conditions)

    Private onsite wastewater treatment system sanitary permits for land inside the Town of Omro, Winnebago County, Wisconsin.

    • The County's stated sanitary-permit jurisdiction includes the Town of Omro.
    • Where sanitary sewer is not available, the Town will not issue its building permit until a county sanitary permit is issued.
    • Where sanitary sewer is available, the Town code instead requires a sanitary permit issued by the sanitary district providing service before its building permit is issued.
    “The Winnebago County Planning and Zoning Department regulates all Private Onsite Wastewater Treatment Systems (POWTS), better known as septic systems and holding tanks.”

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.

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