Bolthole Index

Dane County, Wisconsin

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

Town of Dunn is a town in Dane 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 Dane County page.

Answers from the rulebook for Town of Dunn

Town of Dunn’s own rules

  • Driveway accessRequired

    New homes, wrecks and rebuilds inside Dunn town

    • Driveway permit required under Town of Dunn Ordinance No. 13-2 regulating driveways, filed as part of the town building code; the ordinance regulates construction, improvement and reconstruction of driveways in the town.
    “Town of Dunn Driveway Permit (required for all new homes and wrecks and rebuilds)”
  • Permit feesVariable (with conditions)

    Building permit fees charged by the Town of Dunn (Dane County)

    • Fee amount is calculated when the building permit application is submitted; published fee schedule not located in the pages opened.
    “Permit fees are calculated upon submission of the building permit application.”
  • Permit processPublished (with conditions)

    Building permit application process for projects inside Dunn town

    • Submit the application form, project description, plans, site plan, and any Dane County permits; the new home permit also requires the DSPS online building permit application.
    • Permit fees are calculated on submission.
    • Electronic submission is preferred for blueprints.
    “Submit the application form, detailed project description, copy of any applicable blueprints, site plan, and copies of any applicable Dane County permits to [email protected] or 4156 County Highway B, McFarland, WI 53558.”

Rules another office applies inside Town of Dunn

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

  • Building permitRequired

    New one- and two-family dwelling construction inside Dunn town

    • Permit must be obtained before any on-site construction, including excavation, may begin.
    • Permit issued by the municipality (the town) or a registered UDC inspection agency; SPS 320.09(9)(b) allows an earlier footing and foundation permit.
    • Town also requires its driveway permit for new homes (see driveway_access).
    “A permit under the UDC is required for new one- and two-family dwelling units.”
  • Building code adoptedAdopted (with conditions)

    One- and two-family dwellings built inside Dunn town, administered under the statewide Uniform Dwelling Code (SPS 320-325)

    • Subchapter IV of SPS 320 governs approval and inspection of one- and 2-family dwellings; the town administers and enforces the UDC permit process.
    • The town's own Ordinance No. 13-2 (driveways) is filed as part of the Town of Dunn building code, but the town building ordinance text was not located in this research.
    “The program governing one- and two-family dwelling units (including manufactured homes) is also called the UDC program, referring to the Uniform Dwelling Code.”
  • InspectionsRequired

    Dwellings with a UDC building permit inside Dunn town

    • Inspections are conducted under SPS 320.10 by a certified UDC inspector, either the town or a registered inspection agency that the permit holder must retain for the project (SPS 320.08(2)).
    “The following inspections are required on new one- and two-family dwellings. When ready for inspection, notify the inspector identified on your UDC permit.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder permitting inside Dunn town
  • Certificate of occupancy — Occupancy approval for a new home inside Dunn town
  • Zoning districts — Zoning districts applying inside Dunn town
  • Minimum dwelling size — Minimum dwelling size for a home inside Dunn town
  • Minimum lot size — Main single-family residential district inside Dunn town
18 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • 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 Dunn publishes no rule on the point, not that none exists. Dane County’s page lists the county offices to call.

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