Bolthole Index

Washington County, Wisconsin

Zoning, building permits and septic rules in the Town of Polk, Wisconsin

The Town of Polk in Washington County, Wisconsin has its own zoning code1, and a state Uniform Dwelling Code permit is required before a new home is built2. Septic permits come from Washington County, not the town3. Recreational vehicles may not be used as a dwelling inside the town4.

At a glance

Zoning
The town has its own zoning code covering all land, structures, water and air in Polk1
Building permit
Required for new one- and two-family homes, including modular and manufactured installations2
Septic
Washington County Sanitary Permit, with county inspections35
RV living
Prohibited: RVs may not be used as a dwelling4
Minimum lot (A-1)
10 acres in the A-1 General Agricultural District6
Minimum home size (A-1)
1,200 square feet of floor area, 35 feet maximum height78
Manufactured homes
Count as single-family dwellings only if they meet the federal HUD standards9
Tiny homes
Not confirmed; ask the Town of Polk office10

Who to call

Building permits

Town of Polk Town Hall (zoning and building permits)

Zoning and building permit application packets, zoning changes, conditional uses and driveway culvert permits for the Town of Polk

(262) 677-2123

3680 State Hwy 60, Slinger, Wisconsin 53086

Septic permits

Washington County Natural Resources Department, Land Resources

County sanitary permits for septic systems, plus erosion-control and stormwater applications

(262) 335-4445

[email protected]

333 E. Washington Street, Suite 2300 P.O. Box 2003 West Bend, WI 53095-2003

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 15, 2026.

Off-grid gear

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

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Does the Town of Polk, Wisconsin have zoning?

Yes. The Town of Polk, in Washington County, Wisconsin, has its own zoning chapter that applies to all structures, land, water and air within the town1. The code sets districts including A-1, A-2, R-1 through R-4, business, manufacturing and parks districts, and the town publishes a zoning map that changes as requests come before it11. Washington County itself does not run general zoning, so the town code is the one that matters for a typical parcel12.

District matters. In the A-1 General Agricultural District, the minimum lot area is 10 acres, a single-family dwelling needs 1,200 square feet of residential floor area, and the maximum height is 35 feet678. Manufactured homes count as single-family dwellings only where they meet the federal manufactured-housing standards and carry the HUD label9. Confirm your parcel's district with the Town of Polk office10.

Do you need a building permit in the Town of Polk?

Yes for a new home. A permit under Wisconsin's Uniform Dwelling Code is required for new one- and two-family dwellings, including stick-built, modular and manufactured home installations2. The town publishes a New Home Building Permit Application Packet and a Residential Single- and Two-Family Dwellings Application on its permits page10.

Which agency issues the permit depends on delegated authority: the town, Washington County or the state Department of Safety and Professional Services2. Ask the town office which inspector will be named on your permit. Inspections cover footings, foundation and reinforcement, rough construction, insulation and the final inspection13. A Wisconsin owner who will live in the home may apply for the construction permit without a dwelling-contractor certification, but the permit is still required14.

Who handles septic permits for property in the Town of Polk?

Washington County does. Installing or repairing a septic system requires the property owner to obtain a Washington County Sanitary Permit3, and county Land Use Inspectors check the installation through a series of inspections5. A Master Plumber or Master Plumber-Restricted Sewer is responsible for getting the permit and doing the work, and some systems need state approval before the county permit3.

For a new home, the state requires the sanitary permit before the building permit can be issued when a private onsite system is used15. Because only 15.4% of soils in Washington County rate as not limited for a conventional drain field, expect a site evaluation and possibly an engineered system16. Contact the county Land Resources office17. We could not confirm whether the town requires public sewer or water hookup when available.

Can you live in an RV or tiny home in the Town of Polk?

Not in an RV. The Town of Polk zoning chapter states that recreational vehicles shall not be used as a dwelling or be connected to water or sanitary sewer4. RVs may still be parked or stored, subject to accessory-use, yard, setback, surfacing, licensing and registration conditions4. That rules out living in an RV on your land while you build.

We could not confirm a complete answer for tiny homes, temporary camping or accessory dwellings, because the town materials we reviewed do not address them fully. Ask the Town of Polk office before buying10. A tiny home built as a house would meet the same dwelling rules, including the Uniform Dwelling Code permit2.

Building a home in the Town of Polk: the steps, in order

  1. Ask the Town of Polk office which zoning district your parcel is in and whether your plan fits it1110.
  2. Get a soil test and a Washington County Sanitary Permit; start with the county Land Resources office317.
  3. Submit the town's new home permit packet with plans210.
  4. Apply for a County Access Permit if the driveway touches a County Trunk Highway right-of-way18.
  5. Call the inspector named on your permit at each stage before covering work, and for the final inspection13.

The town also publishes separate packets for accessory structures, agricultural structures, temporary uses and conditional uses19.

What stays with Washington County, and what to check before you buy

Washington County keeps septic permits20 and approval of land divisions, which the town must also approve21. County subdivision plat approval applies to five or more parcels of 1.5 acres or less within five years22. The county also administers shoreland, wetland and floodplain zoning in unincorporated areas, covering land within 300 feet of a river or navigable stream and within 1,000 feet of a lake or pond23. If your parcel is near water or mapped floodplain, ask the county Land Resources office what applies17.

A county access permit is needed for driveways onto County Trunk Highways24. Washington County's effective property tax rate is 1.2%25. We could not confirm well permitting for Polk, so ask the town office and the county10.

Watch-outs

  • Recreational vehicles may not be used as a dwelling anywhere in the Town of Polk, so plan housing during construction accordingly4.
  • The town's fee amounts were not available to us; the Town of Polk office publishes a fee schedule with its application packets10.
  • Zoning maps in the Town of Polk can change as requests come before the town, so confirm a parcel's current district before closing11.
  • We could not confirm tiny-home rules, accessory dwellings, lot-coverage limits or private well permitting in the Town of Polk; ask the town office10.

Sources

  1. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  2. UDC (Uniform Dwelling Code / One- and Two- Family Dwellings) (Town of Polk), quoted and re-checked
  3. Septic Systems/POWTS (Town of Polk), quoted and re-checked
  4. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  5. Septic Systems/POWTS (Town of Polk), quoted and re-checked
  6. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  7. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  8. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  9. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  10. Town of Polk Town Hall (zoning and building permits) (townofpolk-wi.gov)
  11. Town of Polk Chapter 17 Zoning Regulations (Town of Polk), quoted and re-checked
  12. County Land Information Plan 2024, quoted and re-checked
  13. UDC (Uniform Dwelling Code / One- and Two- Family Dwellings) (Town of Polk), quoted and re-checked
  14. Instructions for Submitting a UDC Permit Application, quoted and re-checked
  15. Wisconsin’s Uniform Dwelling Code (Wisconsin statewide rule), quoted and re-checked
  16. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  17. Washington County Natural Resources Department, Land Resources (permitapp.washcowisco.gov)
  18. Permits (Town of Polk), quoted and re-checked
  19. Permits & Applications (Town of Polk), quoted and re-checked
  20. Septic Systems/POWTS (Town of Polk), quoted and re-checked
  21. Land Division (Town of Polk), quoted and re-checked
  22. Land Division, quoted and re-checked
  23. washcowisco.gov, quoted and re-checked
  24. Permits, quoted and re-checked
  25. Effective property tax rate: Bolthole Index county data

Written October 15, 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 Town of Polk

Town of Polk’s own rules

  • Local zoningPresent

    All structures, land, water, and air within Polk town.

    • The ordinance states that it applies except as otherwise provided by law.
    • The Town Board adopted Ordinance 02.2024 on June 11, 2024; the ordinance became effective upon publication of the notice.
    “The provisions of this Chapter shall apply to all structures, land, water, and air within the Town of Polk, except as otherwise provided by law.”
  • Zoning districtsPublished

    Zoning districts inside Polk town.

    • The Chapter's use and dimensional tables identify A-1, A-2, R-1, R-2, R-3, R-4, B-1, B-2, M-1, M-2, M-3, Q-1, I-1, and P-1 districts.
    • The Town separately publishes a zoning map, and zoning maps can change as requests come before the Town.
    “Zoning Districts A-1 A-2 R-1 R-2 R-3 R-4 B-1 B-2 M-1 M-2 M-3 Q-1 I-1 P-1”
  • Minimum dwelling sizeSpecified

    Single-family dwellings in the A-1 General Agricultural District inside Polk town.

    • The district table specifies 1,200 square feet of residential floor area.
    • Height exceptions may apply under the Chapter's Modifications section.

    minimum residential floor area: >= 1200 square feet

    “Single-Family Dwelling Minimum Residential Floor Area 1,200 sf.”
  • Minimum lot sizeSpecified

    Lots in the A-1 General Agricultural District inside Polk town.

    • The code states that certain shoreland/floodplain-area parcels may instead have 10,000-square-foot sewered or 20,000-square-foot unsewered minimum areas under Wis. Stat. § NR 115.05(1)(a).

    minimum lot area: >= 10 acres (Shoreland/floodplain-area parcels: 10,000 square feet if sewered and 20,000 square feet if unsewered.)

    “Lot Standards – A-1 District Lot Minimum Area 10 ac. [a]”
  • Building heightSpecified

    Single-family dwellings in the A-1 General Agricultural District inside Polk town.

    • The code's Modifications section provides exceptions for specified structures and projections.

    maximum height: <= 35 feet (See Modifications section.)

    “Single-Family Dwelling Minimum Residential Floor Area 1,200 sf. Maximum Height 35 ft. [c]”
  • Living in an RVProhibited

    Use of recreational vehicles as dwellings inside Polk town.

    • Recreational vehicles may otherwise be parked or stored subject to accessory-use, ownership, yard, setback, surfacing, licensing, and registration conditions.
    • The prohibition concerns use as a dwelling or connection to water or sanitary sewer.
    “Recreational vehicles shall not be used as a dwelling or be connected to water or sanitary sewer.”
  • Manufactured homesAllowed (with conditions)

    A manufactured home used as a single-family dwelling inside a Polk town zoning district.

    • The home must meet the federal manufactured-housing standards and bear the required HUD label or insignia.
    • The Town code treats it as a single-family dwelling only where it meets the referenced regulations.
    • Applicable district use, dimensional, zoning, and UDC requirements still apply.
    “A manufactured home shall be considered a single-family dwelling for the purposes of this Chapter only where it meets said regulations.”
  • Permit feesPublished

    Town zoning and building permit applicants inside Polk town.

    • The Town page links a fee schedule identified as adopted January 16, 2024.
    • The amount applicable to a particular project was not extracted from the linked document in this pass.
    “Town of Polk Fee Schedule - Adopted 1-16-2024”
  • Permit processPartial

    Zoning and building-permit applications inside Polk town.

    • The Town publishes separate application packets for new homes, accessory structures, agricultural structures, temporary uses, conditional uses, site plans, zoning changes, and short-term rentals.
    • Additional state, county, sanitary, floodplain, driveway, and utility approvals may be required depending on the project.
    “Residential Single- and Two-Family Dwellings Application - Rev 03-2025”

Rules another office applies inside Town of Polk

Town of Polk 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 dwellings, including stick-built, modular, and manufactured home installations inside Polk town.

    • A permit is required before construction proceeds.
    • The enforcing agency may be Polk town, Washington County, or DSPS depending on delegated authority.
    “A permit under the UDC is required for new one- and two-family dwelling units. This includes stick-built, modular, and manufactured home installations.”
  • InspectionsRequired

    New one- and two-family dwellings inside Polk town.

    • Required inspection stages include footings, foundation and reinforcement, rough construction, insulation, and final inspection.
    • The local or state inspector identified on the permit must be notified when work is ready.
    “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

    Private onsite wastewater systems serving property inside Polk town; Washington County administers the sanitary-permit and inspection process.

    • The county source identifies Washington County sanitary permits and Washington County Land Use Inspectors.
    • Some systems require state approval before the county sanitary permit.
    “Activities relating to the installation or repair of septic systems requires the owner of the property to obtain a Washington County Sanitary Permit.”
  • Septic permitRequired

    Installation or repair of septic systems serving property inside Polk town.

    • The owner must obtain a Washington County Sanitary Permit.
    • A Master Plumber or Master Plumber-Restricted Sewer is responsible for obtaining the permit and installing or repairing the system.
    • Certain POWTS require state approval before the county sanitary permit.
    “Activities relating to the installation or repair of septic systems requires the owner of the property to obtain a Washington County Sanitary Permit.”
  • Septic inspectionRequired

    POWTS installation inside Polk town.

    • Washington County Land Use Inspectors inspect for compliance with state codes through a series of inspections.
    • Maintenance and reporting requirements may also apply under state and county rules.
    “A Washington County Land Use Inspector will ensure that the POWTS is installed in compliance with state codes through a series of inspections.”
  • Off-grid sanitationLimited

    Non-sewered sanitation and onsite wastewater disposal inside Polk town.

    • Domestic wastes must be discharged to an approved POWTS.
    • County sanitary permits and state requirements apply.
    • Emergency repairs or stoppage removal may proceed before a permit only if reported by the next working day and left exposed for county determination and inspection when required.
    “B. Effluents. All domestic wastes shall be discharged to an approved POWTS.”
  • Subdividing landRegulated (with conditions)

    Land divisions and subdivisions inside Polk town.

    • Washington County has approving authority for land divisions within a township.
    • The Township must also approve the land division.
    • Where a township has adopted a subdivision-control ordinance, county provisions apply where more restrictive.
    “The County has approving authority for land divisions within a Township. The Township must also approve the land division and if your land is within the extraterritorial platting authority of a City or Village, they must also approve the land division.”
  • Driveway accessLimited

    Driveways and access work affecting Washington County Trunk Highway rights-of-way inside Polk town.

    • Before replacing a culvert, paving or widening an existing driveway, installing a new driveway, or constructing a new road, applicants must review the County Access Control Policy and submit a County Access Permit Application.
    • The source is specific to County Trunk Highway right-of-way; it does not establish the rule for every local road.
    “Before replacing a culvert, paving or widening an existing driveway, installing a new driveway, or constructing a new road, applicants shall first review the County Access Control Policy then submit a County Access Permit Application Form.”

Still unanswered

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

  • Lot coverage — Lot-coverage limits inside Polk town.
  • Camping on your land — Temporary camping on private land inside Polk town.
  • Tiny homes — Tiny-home occupancy inside Polk town.
  • Accessory dwellings — Accessory dwelling units inside Polk town.
  • Well permit — Private well permitting inside Polk town.
2 more unanswered
  • Mandatory utility hookup
  • Agricultural exemption

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

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