Bolthole Index

Dunn County, Wisconsin

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

Town of Wilson is a town in Dunn County, Wisconsin. Septic permits inside Town of Wilson come from Dunn County (Dunn County Planning & Land Use — Sanitation · 715-231-6520). 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 Dunn County page.

Answers from the rulebook for Town of Wilson

Rules another office applies inside Town of Wilson

Town of Wilson 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 (with conditions)

    One- and two-family dwellings inside Wilson town, under the state Uniform Dwelling Code (Wis. Admin. Code chs. SPS 320-325)

    • Applies to one- and two-family dwellings; the index does not show scope for other building types.
    • Wilson town's own building ordinance was not located; the state code is the source confirmed here.
    “subchapter iv — approval and inspection of one- and 2-family dwellings sps 320.08 wisconsin uniform building permit.”
  • Zoning districtsPublished (with conditions)

    Zoning districts applying inside Wilson town under Dunn County Chapter 13

    • Districts include R1, R2, R3, IA, PA, GA, limited and general commercial, light and heavy industrial, SR, nonmetallic mining overlay and conservancy districts.
    • The county zoning page directs residents to a zoning district list; the full district schedule was only partly read.
    “intensive agriculture district (ia) primary agriculture district (pa) general agriculture (ga) limited commercial district (lc)”
  • Minimum lot sizeSpecified

    Single-family residential (R1) lots inside Wilson town not served by community sewer

    • Lot must be at least 85 feet wide at the highway or building setback line.
    • Area excludes road right-of-way.

    minimum lot area: >= 1 acre (lots not served by community sewer, excluding road right-of-way)

    “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.”
    3 more reviewed findings on this topic
    • Specified — Single-family residential (R1) lots inside Wilson town served by community sewer (same rule applies to R2, R3 and SR districts)
      “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 — Non-farm single- or two-family residence or non-farm residential cluster in the intensive agriculture (IA) and primary agriculture (PA) districts inside Wilson 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.”
    • Specified — General agriculture (GA) district lots inside Wilson town
      “the ga district shall have a minimum lot size of one acre, excluding road right-of-way.”
  • SetbacksSpecified

    Principal structures in the agriculture districts (IA, PA, GA) inside Wilson town (side yard)

    • Highway and front yard setbacks are set under section 13.3.2, which was not opened; they are not stated here.
    • Side yard increases for taller agricultural structures apply per the height rule.

    minimum side yard setback, principal structure: >= 10 feet (highway and front yard setbacks governed by section 13.3.2)

    “the minimum side yard setback shall be 10 feet for principal structures.”
  • Building heightSpecified

    Residential structures in the agriculture districts (IA, PA, GA) inside Wilson town

    • Agricultural structures such as barns, silos, tanks and windmills are exempt if front, side and rear setbacks increase one foot for each additional foot above 35 feet.

    maximum height, residential structure: <= 35 feet (agricultural structures exempt with setback increase)

    “agricultural structures such as barns, silos, tanks, and windmills are hereby exempt from the height regulation provided the front, side and rear yard setbacks are each increased at least one foot for each additional foot of height above 35 feet.”
  • Living in an RVTemporary only (with conditions)

    Recreational vehicle occupancy on private land inside Wilson town (county Chapter 13 applies to towns not on its exception list)

    • A mobile recreational vehicle may not be used as a permanent principal residence.
    • Temporary use is permitted in districts where a single-family dwelling is allowed only if zoning and sanitary permits have been issued for the permanent dwelling, and use may not exceed 365 days out of 547 days.
    • Agricultural-district temporary use is limited to the owner or lessee's recreational use, up to 180 days a calendar year, and the RV may not be connected to a private on-site waste system or well.

    maximum temporary use: <= 365 days out of 547-day period (Agricultural districts: 180 days per calendar year, owner/lessee recreational use only)

    “temporary use of a mobile recreational vehicle is permitted in all districts where a single family dwelling is allowed providing: a. zoning and sanitary permit(s) have been issued for the permanent dwelling. b. use does not exceed 365 days out of 547 days.”
  • Camping on your landLimited

    Temporary recreational-vehicle use on land inside Wilson town, as stated in the county RV provision

    • Agricultural-district temporary use is limited to the owner or lessee's recreational use and up to 180 days in a calendar year.
    • Tent or other camping rules were not located in the opened text.

    agricultural district temporary RV use: <= 180 days per calendar year (owner or lessee recreational use only)

    “the use does not exceed more than 180 days in a calendar year.”
  • Manufactured homesLimited

    Manufactured home communities inside Wilson town (county Chapter 13 applies to towns not on its exception list)

    • Manufactured home communities are a permitted use in the R3 district and a special exception in the R2 and SR districts.
    • Communities must meet Wis. Admin. Code ch. 26 standards and the county permit requirements under section 13.3.6.
    “mobile / manufactured home community is a permitted use in the residential district (r3), and as a special exception in the r2 and sr districts.”
  • Accessory dwellingsLimited

    Accessory dwelling units on lots inside Wilson town (county Chapter 13 applies to towns not on its exception list)

    • No more than one ADU is permitted per lot or parcel.
    • An ADU may not exceed 1,200 square feet and must be subordinate to the primary dwelling.
    • The ADU must be no more than 300 linear feet from the primary single-family dwelling.
    • ADUs may not be built on a lot with a two-family or multi-family dwelling.
    • ADUs must meet district development standards, including setbacks, lot coverage and height.

    maximum ADU size: <= 1200 square feet · maximum distance from primary dwelling: <= 300 linear feet

    “in no case shall the adu be greater than twelve-hundred (1200) square feet. (f) distance requirement. the distance between the primary single-family dwelling and the adu must not exceed 300 linear feet.”
  • Who permits septicCounty (with conditions)

    Private onsite sewage (POWTS) on land inside Wilson town; Dunn County sanitary ordinance applies to all towns in Dunn County

    • Dunn County's sanitary ordinance applies to all towns, which includes Wilson town.
    • Domestic wastewater disposal for an accessory dwelling must comply with sewage system requirements unless exempted by the state or the county sanitation ordinance.
    • State POWTS rules (Wis. Admin. Code SPS 383) are not opened here and may also apply.
    “dunn county's shoreland, floodplain, land division, and sanitary ordinances apply to all towns in dunn county.”
  • Subdividing landRegulated (with conditions)

    Land divisions inside Wilson town under the Dunn County land division ordinance

    • County land division ordinance applies to all towns in Dunn County.
    • Lot-creation standards and the land division ordinance text were not opened.
    “dunn county's shoreland, floodplain, land division, and sanitary ordinances apply to all towns in dunn county.”
  • Permit processPartial

    Zoning and UDC permit process for work inside Wilson town

    • Zoning permits are required only for uses listed as permitted uses in a zoning district.
    • Building permits and inspections for dwellings go through the township UDC building inspector.
    • The full application workflow and sanitary-permit steps were not located on official pages.
    “zoning permits are required for uses that are listed as "permitted uses" within a zoning district.”

Still unanswered

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

  • Building permit — New dwelling construction inside Wilson town
  • Owner-builder exemption — Owner-builder construction of a home inside Wilson town
  • Certificate of occupancy — Occupancy approval for new dwellings inside Wilson town
  • Local zoning — Land inside Wilson town (Dunn County) limits: whether the town itself adopted and administers a zoning ordinance
  • Minimum dwelling size — Minimum floor area for a dwelling inside Wilson town
10 more unanswered
  • Lot coverage
  • Tiny homes
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Short-term rentals
  • Permit fees

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

← All of Dunn County: county rules, score and offices