Bolthole Index

Dane County, Wisconsin

Building permits, zoning and septic in Village of Windsor, Wisconsin

Village of Windsor, Wisconsin requires a building permit for new single-family homes and duplexes, including modular and manufactured-home installations.1 Windsor administers its own zoning and building inspection; private septic permits go through Public Health Madison & Dane County in Dane County.23 A new structure needing a private septic system must have its sanitary permit before Windsor issues the building permit.4

At a glance

Building permits
Required for new homes; apply online through Windsor15
Zoning
Village-administered; start with the Planning & Zoning Specialist26
Septic permits
Public Health Madison & Dane County; obtain sanitary approval before a building permit for a new structure needing septic34
Minimum dwelling size
Detached single-family dwellings other than mobile homes need at least 500 square feet on the first floor7
Lot size
A-2 residential uses follow R-1 lot width and area requirements8
Private wells
County well location permit plus DNR well construction permit3

Who to call

Building permits

Village of Windsor Building Inspection

Building applications and contracted building inspection services in Windsor

608-697-7771

Online permits →

Zoning

Village of Windsor Community Development — Planning & Zoning Specialist

Zoning, development applications and direction to the Village Zoning Administrator

608-888-0066

Septic permits

Public Health Madison & Dane County — Well & Septic Program

Sanitary permits, well location permits and private-system inspection and maintenance

608-242-6515

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

Going off-grid in Village of Windsor means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Village of Windsor, WI?

New single-family homes and duplexes in Village of Windsor need a Uniform Dwelling Code building permit, including stick-built, modular and manufactured-home installations.1 Wisconsin’s Uniform Dwelling Code supplies construction standards and inspection procedures for these homes.9 Windsor’s building application categories also include principal-structure additions and accessory structures such as sheds, fences, pools and decks.10 Ask Windsor Building Inspection which application fits your project before preparing a submission.10 Building approval does not replace sanitary approval: a new structure requiring a private sewage system needs its sanitary permit before the Village can issue its building permit.4

Who handles building inspection and zoning in Village of Windsor?

Windsor contracts with General Engineering Company for building inspection services.11 Reach Windsor Building Inspection at 608-697-7771 and use the Village’s online building applications.10 For zoning regulations, development applications and zoning permit questions, start with Windsor’s Planning & Zoning Specialist at 608-888-0066; office hours are by appointment.6 The Community Development department administers Windsor’s building inspection, planning, zoning and code enforcement.2 Private wells and septic systems have a separate counter: Public Health Madison & Dane County’s Well & Septic Program, reachable at 608-242-6515.3

Does Village of Windsor have zoning, and can you live in an RV or tiny home?

Village of Windsor has its own zoning, administered through Community Development.2 In Windsor’s A-2 Agriculture District, residential lot width and area follow the R-1 Single-Family Residential District requirements; ask the Planning & Zoning Specialist for the applicable dimensions and setbacks for your parcel.86 Detached single-family dwellings other than mobile homes must have at least 500 square feet of first-floor area.7 That floor-area rule alone does not establish approval for a tiny home; ask Windsor’s Planning & Zoning Specialist about the proposed dwelling and its district.76 We could not confirm complete private-land RV occupancy, temporary camping, tiny-home occupancy or accessory-dwelling rules in Windsor; take those use questions to the same specialist before buying land for that purpose.6

How do septic permits and private wells work inside Village of Windsor?

Public Health Madison & Dane County issues permits and inspects private wells and septic systems serving Windsor properties.3 For a new structure needing septic, obtain the sanitary permit before Windsor issues the building permit.4 The health department’s application sequence starts with a soil evaluation by a licensed certified soil tester, followed by a licensed professional’s system design and submission of the sanitary permit application.3 Most private septic systems enter a 3-year inspection program, with component-specific requirements for some treatment systems.12 A private well requires a county well location permit and a DNR well construction permit.3 Ask the Well & Septic Program about the proposed well location and sanitary application together.3

What are the steps to building a home in Village of Windsor?

  1. Ask Windsor’s Planning & Zoning Specialist to review the intended use and the parcel’s zoning requirements.6
  2. For a lot in a subdivision, land division, replat, condominium plat or certified survey map, resolve Chapter 38 compliance, improved-public-road access and water, sewer and private utilities before building approval, unless a Village Board development agreement specifically allows otherwise.13
  3. If the new structure needs septic, secure its sanitary permit before the building permit.4
  4. Complete Windsor’s building application online and coordinate required footing, foundation, rough, insulation and final inspections with the inspector identified on the UDC permit.511
  5. Ask Building Inspection about Windsor’s post-grading certificate application for issuance of a final occupancy permit for single-family and two-family principal structures.10

What stays with Dane County, and what should you check before buying in Village of Windsor?

Windsor’s building inspection and zoning administration stay with the Village, while private well and septic permitting stays with Public Health Madison & Dane County.23 For land outside village limits, use the Dane County guide: the county zoning office’s rural development jurisdiction excludes cities and villages.14 Within Windsor, the Village Zoning Administrator handles permits and compliance inspections under the Village floodplain chapter; ask Community Development to direct your parcel-specific floodplain question.156 For land being divided, confirm road access and utility readiness with Windsor before assuming the resulting lot can receive a building permit.13 Ask the Planning & Zoning Specialist about district setbacks and coverage, and Building Inspection about owner-builder eligibility, before committing to a home design.610

Watch-outs

  • A sanitary permit must precede Windsor’s building permit when a new structure requires a private sewage system.4
  • Windsor’s road-and-utility prerequisites for divided land can prevent building approval unless a Village Board development agreement specifically permits otherwise.13
  • We could not confirm private-land RV or tiny-home occupancy permission in Windsor; ask the Planning & Zoning Specialist before relying on either as housing.6

Sources

  1. UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Village of Windsor), quoted and re-checked
  2. Community Development (Village of Windsor), quoted and re-checked
  3. Public Health Madison & Dane County — Well & Septic Program (publichealthmdc.com)
  4. Dane County Chapter 46: Private Sewage System Ordinance and Health Ordinance (Village of Windsor), quoted and re-checked
  5. Building Inspection (Village of Windsor), quoted and re-checked
  6. Village of Windsor Community Development — Planning & Zoning Specialist (windsorwi.gov)
  7. Chapter 26, Sec. 26-78: Quantity, location and use of space in residential buildings (Village of Windsor), quoted and re-checked
  8. Chapter 52, Sec. 52-57: A-2 Agriculture District (Village of Windsor), quoted and re-checked
  9. UDC (Uniform Dwelling Code / One- and Two-Family Dwellings) (Village of Windsor), quoted and re-checked
  10. Village of Windsor Building Inspection (windsorwi.gov)
  11. UDC inspections (Village of Windsor), quoted and re-checked
  12. Dane County Chapter 46: Private Sewage System Ordinance and Health Ordinance (Village of Windsor), quoted and re-checked
  13. Chapter 38: Planning and Development (Village of Windsor), quoted and re-checked
  14. Dane County Zoning Permits, quoted and re-checked
  15. Chapter 25: Floodplain Zoning (Village of Windsor), quoted and re-checked

Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Village of Windsor

Village of Windsor’s own rules

  • Local zoningPresent

    Land inside Windsor village; the Village administers planning and zoning through its Code of Ordinances.

    “The Department administers building inspection, planning, zoning, code enforcement, and community development activities through the implementation of the Village’s Code of Ordinances, Comprehensive Plan: 2035, Comprehensive Outdoor Recreation Plan, and Official Map.”
  • Zoning districtsPublished

    Zoning districts inside Windsor village.

    • The supplied official code sections identify A-2 Agriculture, A-4 Small Lot Agriculture, MF-2 Two-Family Residential, and MF-3 Multiple Family Residential districts; the complete district list was not reconstructed from the selected excerpts.
    “Chapter 52 - ZONING DISTRICTS [...] Sec. 52-57. - A-2 Agriculture District.”
  • Minimum dwelling sizeSpecified

    Detached single-family dwellings other than mobile homes inside Windsor village.

    • The rule applies to first-floor area; excluded spaces and other residential-room rules are separately addressed in the section.

    minimum first-floor area: >= 500 square feet (Detached single-family dwellings other than mobile homes.)

    “Every detached single-family dwelling other than a mobile home shall have at least 500 square feet of floor area on the first floor level.”
  • Minimum lot sizeDistrict specific (with conditions)

    Residential uses in the A-2 Agriculture District.

    • Residential lot width and area are the same as the R-1 Single-Family Residential District; the supplied A-2 excerpt does not state the R-1 numeric values.
    “For residential uses the lot width and area shall be the same as for the R-1 Single-Family Residential District.”
  • Mandatory utility hookupWater and sewer (with conditions)

    Lots in subdivisions, land divisions, replats, condominium plats, or CSMs inside Windsor village.

    • The lot must be directly accessible from an improved public road and served by water, sewer, and private utilities.
    • The Village Board may specifically permit otherwise in a development agreement.
    • Where public sewer is available, Dane County Chapter 46 requires connection and discontinuation of private sewage use.
    “The Village shall not issue any building permit relating to any parcel of land forming all or any part of lands included in a subdivision, land division, replat, condominium plat or CSM originally submitted to the Village until the applicant has complied with all of the provisions and requirements of this chapter, and the subject lot is directly accessible from an improved public road and is served by water, sewer and private utilities, unless specifically permitted by the Village Board in a development agreement.”
  • Subdividing landRegulated (with conditions)

    Subdivisions, land divisions, replats, condominium plats, and CSMs inside Windsor village.

    • Building permits are withheld until Chapter 38 requirements are met, the lot has improved-public-road access, and water, sewer, and private utilities are provided unless a Village Board development agreement permits otherwise.
    “All applications for subdivision approval, including certified survey maps, preliminary plats, condominium plats, final certified survey maps, and final plats, shall be reviewed under these regulations.”
  • Driveway accessRequired

    Lots in subdivisions, land divisions, replats, condominium plats, and CSMs inside Windsor village.

    • The lot must be directly accessible from an improved public road before the Village may issue the building permit, unless specifically permitted by a Village Board development agreement.
    “the subject lot is directly accessible from an improved public road and is served by water, sewer and private utilities, unless specifically permitted by the Village Board in a development agreement.”
  • Building in a floodplainRequired

    Development regulated by Windsor village floodplain zoning.

    • The Windsor Zoning Administrator administers the chapter, issues permits, inspects properties, and requires regional flood elevation information on permit applications.
    “Issue permits and inspect properties for compliance with provisions of this Chapter”
  • Permit processPartial

    Building-permit applications inside Windsor village.

    • Applications must be completed online.
    • The online system supports paperless submission, correspondence, tracking, issuance of permits and certificates of occupancy, and record keeping.
    • Payment may be by check or credit card; processing fees apply.
    “All applications must be completed online. The online application process allows for paperless submission of applications, real-time correspondence with Village staff and consultants, tracking of applications, issuance of permits and certificates of occupancy, and enhanced record keeping.”

Rules another office applies inside Village of Windsor

Village of Windsor 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 units inside Windsor village.

    • Applies to stick-built, modular, and manufactured-home installations.
    • The permit is issued by the municipality when delegated authority applies, otherwise through the state process.
    “A permit under the UDC is required for new one- and two-family dwelling units. This includes stick-built, modular, and manufactured home installations.”
  • Building code adoptedAdopted (with conditions)

    New one- and two-family dwellings inside Windsor village, including stick-built, modular, and manufactured-home installations.

    • The Wisconsin Uniform Dwelling Code governs the construction standards and inspection procedures; local permitting authority may be delegated to the municipality.
    “The program governing one- and two-family dwelling units (including manufactured homes) is also called the UDC program, referring to the Uniform Dwelling Code. Enforces construction standards and inspection procedures including evaluation of building materials.”
  • InspectionsRequired

    New one- and two-family dwellings inside Windsor village.

    • Required inspections are footing, foundation and reinforcement, rough, insulation, and final.
    • Windsor contracts with General Engineering Company for building inspection services.
    “The following inspections are required on new one- and two-family dwellings. When ready for inspection, notify the inspector identified on your UDC permit.”
  • Who permits septicCounty (with conditions)

    Private sewage systems inside Windsor village under Dane County Chapter 46.

    • State Wisconsin administrative requirements also apply, including SPS chapters referenced by Chapter 46.
    “The division shall inspect all private sewage systems and non-plumbing sanitary systems after construction but before backfilling no later than the end of the next workday, excluding Saturdays, Sundays and holidays, after receiving notice from the plumber in charge.”
  • Septic permitRequired

    New construction inside Windsor village requiring a private sewage system.

    • A sanitary permit must be obtained before the municipality issues the building permit.
    • Exceptions apply to construction that conforms to setbacks and does not affect wastewater flow or contaminant load.
    “A city, village or town may not issue a building permit for construction of a new structure that requires the installation of a private sewage system unless a sanitary permit for the installation of the private sewage system has been obtained by the owner.”
  • Septic inspectionRequired

    Private sewage systems inside Windsor village.

    • All other private sewage systems are placed on a three-year inspection program; septic tanks are placed on periodic maintenance programs; notices are sent at least 30 days before the due date.

    inspection interval: 3 years (All other private sewage systems; component-specific cycles may apply to aerobic or other treatment technologies.)

    “All other private sewage systems shall be placed on a three-year inspection program in conformance with Wis. Admin. Code s. SPS 383.54(4). Notices of the maintenance due shall be sent by the department to the system owner at least 30 days prior to the due date.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption for construction inside Windsor village.
  • Certificate of occupancy — Certificates of occupancy inside Windsor village.
  • Lot coverage — Lot coverage inside Windsor village.
  • Living in an RV — RV occupancy on private land inside Windsor village.
  • Camping on your land — Temporary camping on private land inside Windsor village.
5 more unanswered
  • Tiny homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • 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 Village of Windsor publishes no rule on the point, not that none exists. Dane County’s page lists the county offices to call.

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