Bolthole Index

Dunn County, Wisconsin

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

Town of Grant is a town in Dunn County, Wisconsin. Septic permits inside Town of Grant come from Dunn County (Dunn County Planning & Land Use — Sanitation · 715-231-6520). 12 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Dunn County page.

Answers from the rulebook for Town of Grant

Rules another office applies inside Town of Grant

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

  • Building code adoptedAdopted

    One- and two-family dwellings built inside Grant town (Uniform Dwelling Code, state-administered)

    • Applies to one- and 2-family dwellings; other building types are outside this statute excerpt.
    • The rule text itself (Wis. Adm. Code SPS 320-325 per the statute cross-reference) was not opened.
    “adopt rules which establish standards for the construction and inspection of one- and 2-family dwellings and components thereof.”
  • Zoning districtsPublished

    Zoning districts of Dunn County Chapter 13 that apply to land inside Grant town (county zoning administered by Dunn County in towns that have not excluded Grant)

    • Grant town is not among the six towns excluded from Chapter 13 by the county zoning page; the town adoption table lists grant.
    • Chapter 13 section 13.2.2 states minimum lot size is that specified by the zoning district that applies.
    • Revision stamps such as (01/18/2017) in the ordinance are not effective dates.
    “dunn county's chapter 13 comprehensive zoning ordinance applies to all towns and unincorporated areas, except the towns of eau galle, elk mound, new haven, rock creek, sand creek, and springbrook.”
  • Minimum lot sizeSpecified

    Residential district R1 (standards shared by R1, R2, R3 and SR) for a lot inside Grant town that is not served by community sewer

    • Applies only where the lot is not served by community sewer.
    • Lot width is measured at the highway or building setback line.
    • Revision stamp (01/18/2017) is not an effective date.

    minimum lot area: >= 1 acre (excluding road right-of-way; lots not served by community sewer) · minimum lot width: >= 85 feet (lots not served by community sewer; measured at highway or building setback line)

    “lots not served by community sewer shall be a minimum of one acre excluding road right-of-way and a minimum of 85 feet wide at the highway or building setback line.”
    2 more reviewed findings on this topic
    • Specified — Residential district R1 (standards shared by R1, R2, R3 and SR) for a lot inside Grant town that is served by community sewer
      “lots served by community sewer shall be a minimum of 10,000 square feet and a minimum of 60 feet wide at the highway or building setback line.”
    • Specified — Primary agriculture district PA (and IA) for a non-farm single or two-family residence inside Grant town
      “the minimum lot size for non-farm single / two family residence and non-farm residential cluster shall be one acre in the ia and pa districts.”
  • SetbacksSpecified

    Primary agriculture district PA (standards shared by IA, PA and GA) for principal structures inside Grant town

    • Side and rear yard only; highway and front yard setbacks are governed by Chapter 13 section 13.3.2, which was not opened.
    • Livestock facilities over 500 animal units have separate setbacks under section 13.3.5.

    side yard setback (principal structure): >= 10 feet · rear yard setback (principal structure): >= 25 feet

    “the minimum side yard setback shall be 10 feet for principal structures.”
    One more reviewed finding on this topic
  • Building heightSpecified

    Residential district R1 (standards shared by R1, R2, R3 and SR) inside Grant town

    • Applies to principal and accessory structures.
    • Agricultural structures are exempt from the height limit if setbacks are increased one foot per foot above 35 feet (section 13.2.2).

    maximum height, principal and accessory structure: <= 35 feet (agricultural structures in agricultural districts)

    “the maximum height for principal and accessory structure shall be 35 feet.”
    One more reviewed finding on this topic
    • Specified — Primary agriculture district PA (standards shared by IA, PA and GA) for a residential structure inside Grant town
      “the maximum height of a residential structure shall be 35 feet”
  • Living in an RVTemporary only (with conditions)

    Recreational vehicles on a lot inside Grant town under Dunn County Chapter 13 (general provisions apply to all zoning districts)

    • A mobile recreational vehicle may be used only temporarily, not as a permanent principal residence.
    • Manufactured homes towed onto a parcel are addressed separately in the same section and were not opened in full.

    maximum RV dimension (defines mobile recreational vehicle): <= 400 square feet (largest horizontal projection)

    “a mobile recreational vehicle shall not be used as a permanent principal residence, and is defined as:”
  • Who permits septicCounty (with conditions)

    Private onsite sanitary (septic / POWTS) systems on land inside Grant town

    • Dunn County sanitary ordinance applies to all towns in Dunn County per the county zoning page; the ordinance text itself was not opened.
    • State sanitary rules (Wis. Admin. Code SPS 383) also apply and were not opened.
    “dunn county's shoreland, floodplain, land division, and sanitary ordinances apply to all towns in dunn county.”
  • Subdividing landRegulated (with conditions)

    Land divisions of land inside Grant town

    • Dunn County land division ordinance applies to all towns in Dunn County per the county zoning page; the ordinance text was not opened.
    “dunn county's shoreland, floodplain, land division, and sanitary ordinances apply to all towns in dunn county.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption from building permit or licensing for a dwelling inside Grant town
  • Inspections — Building inspection of one- and two-family dwellings inside Grant town
  • Certificate of occupancy — Certificate of occupancy for a dwelling inside Grant town
  • Local zoning — Whether the Town of Grant (Dunn County, WI) itself adopts and administers a town zoning ordinance for land inside Grant town
  • Minimum dwelling size — Minimum floor area of a dwelling inside Grant town
14 more unanswered
  • Lot coverage
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Short-term rentals
  • Permit fees
  • Permit process

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

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