Bolthole Index

Oneida County, Wisconsin

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

Town of Cassian is a town in Oneida County, Wisconsin. Septic permits inside Town of Cassian come from Oneida County. 15 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Oneida County page.

Answers from the rulebook for Town of Cassian

Town of Cassian’s own rules

  • Building permitRequired

    New one- and two-family dwellings inside Cassian town

    • Permit is a uniform dwelling code permit; construction may proceed after the permit is issued.
    • The county officials list shows building-permit (UDC) and Wisconsin administrative building permit columns, but the row-to-town mapping in the extracted text is ambiguous; the inspection agency for Cassian was not confirmed.
    “All municipalities are required to issue a Uniform Dwelling Code Permit”
  • Building code adoptedAdopted

    New one- and two-family dwellings inside Cassian town (Wisconsin Uniform Dwelling Code)

    • Ordinance list entry 2009-004 gives adopted 11/10/2009 and revised 05/06/2014.
    • The Uniform Dwelling Code is a Wisconsin state code; the town ordinance list records the town's adoption of it.
    “2009-004 wisconsin uniform dwelling code 11/10/2009 05/06/2014”
  • Subdividing landRegulated (with conditions)

    Land divisions inside Cassian town

    • Town ordinance 2008-001 is a land division and subdivision control ordinance, adopted 12/03/2002 and revised 12/02/2008 per the list.
    • Ordinance text not opened; the list also has a 2008-001a affidavit lot size deed restriction entry.
    “LAND DIVISION AND SUBDIVISION CONTROL ORDINANCE”
  • Driveway accessLimited

    Placement of driveways and private roads inside Cassian town

    • Town ordinance 3.03 regulates the placement of driveways and private roads; text not opened.
    • Driveway permit administration is not confirmed.
    “REGULATE THE PLACEMENT OF DRIVEWAYS & PRIVATE ROADS”

Rules another office applies inside Town of Cassian

Town of Cassian does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Local zoningVaries (with conditions)

    Land inside Cassian town outside the lake/river exception areas: county zoning ordinance administered by Oneida County Planning & Zoning, as Cassian's zoning rule unless the town has adopted its own (not located)

    • The county page states zoning regulations apply in the unincorporated areas of all 20 townships; Cassian town is not named in the exception list.
    • Land in the Towns of Enterprise, Monico and Sugar Camp more than 1,000 feet from a lake or 300 feet from a river or stream is excepted; Cassian is not.
    • Whether Cassian has adopted its own zoning ordinance was not confirmed; the town ordinance list shows none.
    “zoning regulations apply in the unincorporated areas of all 20 townships, except those lands in the towns of enterprise, monico, and sugar camp which are greater than 1,000 feet from a lake or 300 feet from a river or stream.”
  • Living in an RVLimited

    Recreational vehicles used as a dwelling on land inside Cassian town

    • Use as a dwelling for more than five consecutive days requires a sanitary permit if the RV has a potable water and/or electric connection.
    • Without water or electric connection, a non-plumbing sanitary system permit is required.
    • Recreational vehicle transfer containers are prohibited unless located within a permitted campground.

    consecutive days before rule applies: > 5 days

    “all recreational vehicles used as a dwelling for more than five (5) consecutive days shall comply with the following requirements.”
  • Camping on your landLimited

    Camping with recreational vehicles on land inside Cassian town

    • Stays of more than five consecutive days trigger the county sanitary requirements in Chapter 13.24.
    • Stays up to five days are not addressed in the section opened; the county zoning ordinance was not opened.

    consecutive days before rule applies: > 5 days

    “all recreational vehicles used as a dwelling for more than five (5) consecutive days shall comply with the following requirements.”
  • Who permits septicCounty (with conditions)

    Private onsite wastewater systems (POWTS) and non-plumbing sanitation systems on land inside Cassian town

    • Oneida County Chapter 13 applies county-wide; Cassian is inside Oneida County.
    • State statutes and SPS 382-387 and 391 are incorporated into the county ordinance.
    “department. the oneida county planning & zoning department.”
  • Septic permitRequired

    Installing, replacing, repairing or modifying a private onsite wastewater system on land inside Cassian town

    • Soil and site evaluation must be done before a sanitary permit is issued: soil and site evaluations shall be done prior to the issuance of sanitary permits as specified in sps 383, sps 385 and sps 391, wisconsin administrative code.
    • A sanitary permit is not required for minor repairs.
    • Permit must be obtained before construction of any structure that requires a POWTS.
    “every powts shall require a separate application and sanitary permit pursuant to wisconsin statutes 145.19.”
  • Septic inspectionRequired

    Private onsite wastewater systems inside Cassian town

    • Applies to new and existing systems.
    • Septic tanks must also be pumped within three years of installation and at least every three years thereafter, unless inspection finds less than 1/3 of the volume occupied by sludge and scum.

    visual inspection interval: 3 years

    “all new and existing powts shall be visually inspected within three years of the date of installation and at least once every three years thereafter.”
  • Off-grid sanitationLimited

    Non-plumbing sanitation systems (for example, pit privies and holding systems) on land inside Cassian town

    • A county sanitary permit is needed before a non-plumbing sanitation system is built.
    • Pit and vault privies have minimum distances from dwellings, lot lines, wells and water bodies under the county ordinance.
    “a county sanitary permit shall be obtained prior to constructing or installing a non-plumbing sanitation system.”
  • Permit feesVariable (with conditions)

    Sanitary permit fees for systems on land inside Cassian town

    • Fee is set by the county board fee schedule, which varies by permit type (state permits, county permits, non-plumbing systems, reconnection, renewals, transfers, re-inspection).
    • The fee schedule itself was not located.
    “the applicant upon filing his application shall pay a fee in accordance with the fee schedule adopted by the county board.”
  • Permit processPartial

    Sanitary permit process for systems on land inside Cassian town

    • Applies to POWTS and non-plumbing systems; town building permit process is not documented here.
    “a sanitary permit shall be obtained by the property owner, his agent or contractor, in the name of the property owner, prior to the installation, establishment or construction of any structure which requires a powts or non-plumbing sanitation system.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Cassian or Oneida County directly.

  • Owner-builder exemption — Owner-builder permitting inside Cassian town
  • Inspections — Building inspections for new construction inside Cassian town
  • Certificate of occupancy — Occupancy approval for new dwellings inside Cassian town
  • Zoning districts — Zoning districts on unincorporated land inside Cassian town
  • Minimum dwelling size — Minimum dwelling size on unincorporated land inside Cassian town (main residential district)
12 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • Short-term rentals

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 Cassian publishes no rule on the point, not that none exists. Oneida County’s page lists the county offices to call.

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