Polk County, Wisconsin Building Permit Guide

In unincorporated Polk County, the Zoning office of the Environmental Services Division, Polk County Government Center, 100 Polk County Plaza, Suite 130, Balsam Lake (715-485-9111), issues land use permits, sanitary (septic) permits and rural addresses. It does not issue building permits: the county says Uniform Dwelling Code permits are issued by town building inspectors, and DSPS lists every town, village and city in the county as delegated. A new house needs a $475 county land use permit and, on a septic lot, a $525 sanitary permit under the 2026 fee schedule.

What requires a permit in Polk County?

Two county permits cover most rural building projects. A land use permit is required before you build, move or structurally alter a structure, add to one or replace one, wherever county zoning applies. A sanitary permit is required for a new or replacement private septic system, and a land use permit for a new house is not issued until the sanitary permit has been.

Setbacks are measured to the closest point of a structure (eaves for shoreland buildings). Houses and accessory buildings must be 75 feet from the ordinary high water mark, boathouses 10 feet. Road setbacks are 35 feet from the centerline of a private road, 63 feet from a town road centerline or 30 feet from its right-of-way, 75 or 42 feet on a county road and 110 or 50 feet on a state or U.S. highway, and the greater of the two applies. Houses and accessory buildings may be 35 feet tall; farm buildings are exempt.

What the county decides and what the state holds

The county writes the zoning layer: Chapter 42 of the Polk County code, the shoreland rules (including a lake classification system adopted April 20, 1999 that sorts waters into three classes with different side-yard setbacks), floodplain zoning, the subdivision ordinance and the private sewage program under the state’s plumbing and POWTS rules. The construction rules for houses are the state Uniform Dwelling Code, which the county says every town has had to enforce since January 1, 2005 through its own building inspector. Commercial buildings follow the state commercial code and DSPS plan review.

Polk County building department: who handles permitting

The Zoning office handles land use, sanitary and addressing work, and the Environmental Services Committee and Board of Adjustment hear conditional uses, rezonings and variances. Appointments are welcome. Building permits are issued by each town’s building inspector, many of them contract firms; DSPS’s list of UDC delegated agents (current as of September 24, 2026) has no Polk County entry, which means the county holds no UDC delegation of its own.

Towns, villages and cities in Polk County

Every municipality in the county is on the DSPS list as delegated for new one- and two-family dwellings. Where the list names an inspection firm, it is shown; elsewhere ask the town, village or city clerk who inspects. The county’s zoning FAQ keeps its own list of contract inspectors for the towns, with phone numbers; it adds REM Inspecting for Black Brook and West Wisconsin Inspection Agency for Clayton, Georgetown, Milltown, Osceola and St. Croix Falls, names an individual inspector for several other towns, and for West Sweden does not match the DSPS entry, so confirm with the town before applying.

Polk County permit types

County applications can be turned in at the office, by mail or by email to the Zoning Administrative Assistant, and the status of every pending land use and sanitary permit can be followed in the county’s Ascent Permit Management Suite.

Residential permits

• Land use permit. The standard application for a dwelling, garage, shed, retaining wall, patio or landscaping. Stake out the project and mark the property lines before applying; the county may visit the site, and processing takes about two weeks (one to two weeks for a new house once the sanitary permit is issued).
• Sanitary permit. Starts with a soil test by a Wisconsin certified soil tester, which shows the system type the lot can take. A separate county sanitary permit covers reconnecting a new dwelling to an existing system and non-plumbing systems such as privies and composting, chemical and incinerating toilets, each with its own agreement form.
• Rural address. Assigned when Zoning inspects the private sanitary system, or on request; the number is usually issued within two weeks of the site visit, but the town-installed sign can take 10 to 12 weeks.
• Mitigation and bunkhouses. A shoreland lot with more than 15% impervious surface needs a mitigation plan and a recorded vegetative buffer agreement; a bunkhouse needs a notarized, recorded agreement before the permit is approved.

Building or remodeling a home here? Alliance handles home building permits, so the crew isn't waiting on the counter.

Commercial permits

Commercial buildings in the unincorporated towns also take a $475 county land use permit, and uses listed as conditional, such as event centers, nonmetallic mines and many commercial uses, need a conditional use hearing before the Environmental Services Committee, which can take up to six weeks. Towers have their own application, and solar as a permitted accessory use has its own fee. Commercial plans follow the state commercial code and DSPS plan review; ask the town whether it also requires a local building permit.

For tenant improvements and new commercial builds, Alliance handles commercial permit filing through issuance. More on this: commercial building permits explained.

What comes before the building permit

• Survey. New lot splits must be surveyed under the subdivision ordinance, which uses a town checklist.
• Driveway. A WisDOT permit on a state or U.S. highway, a county highway permit under the access control policy, or town permission on a town road; several towns, including Clam Falls, Georgetown, Johnstown, Lorain, Luck, McKinley, Milltown and West Sweden, require permission first.
• Sanitary system or sewer. The septic permit, or a connection permit from a sanitary district (Cushing, Magnor Lake, Wapogasset or the Village of Balsam Lake).
• Land use permit. Issued after the sanitary permit.
• Floodplain. The county adopted FEMA’s current flood maps in September 2011 and lists DNR regional flood elevations for lakes such as Balsam Lake, Cedar Lake and Wapogasset Lake.

Polk County permit fees

The county’s Land Information Fee Schedule took effect January 1, 2026. Work started without a permit pays an after-the-fact penalty of twice the regular fee, plus forfeitures under the zoning, shoreland or subdivision ordinance. Card payments carry a 2.5% convenience fee with a $2 minimum.

Worked example from the schedule: a new house on a conventional septic system in a county-zoned town pays $475 for the land use permit, $525 for the sanitary permit and $150 for the rural address, $1,150 to the county. The town building permit, the soil test and the driveway permit are separate and are priced by the town, the soil tester and the road authority. Telecommunication towers pay $600 to $3,000 for a land use permit depending on height.

Trade permits and who may pull them

Polk County issues no electrical, plumbing or HVAC permits. Trade work on a house is covered by the town’s UDC permit and inspector, and commercial trade work follows the state commercial, electrical and plumbing codes. The one trade the county regulates directly is private sewage: septic systems are designed from a certified soil test and installed by licensed plumbers under the county sanitary permit, and the county posts lists of plumbers, certified soil testers and licensed pumpers.

• Septic maintenance: licensed pumpers file maintenance reports in Ascent after the county sets up a user ID for them.
• Sewer inspections: the county charges $250 for a sewer inspection and $250 for a compliance or sanitary inspection.
• Builders of new homes: the town’s UDC permit requires the state Dwelling Contractor and Dwelling Contractor Qualifier certifications unless the owner will live in the house.

How to apply for Polk County permits

Review, corrections and what causes delay

The land use permit for a new house waits for the sanitary permit, so the soil test is the first thing to schedule. Unstaked sites and unmarked lot lines slow the county’s site check, and a shoreland lot over 15% impervious surface stalls until the mitigation plan and recorded agreement are in. Conditional uses, rezonings and variances need a public hearing and can take up to six weeks; a rezoning also needs the town’s approval with the application.

Inspections and final approval

County staff may inspect the site before issuing a land use permit, checking the zoning district, setbacks from roads, lot lines and the ordinary high water mark, and whether a special use or state approval is needed. The private sewage system is inspected by Zoning, which is also when the rural address is measured and assigned.

Construction inspections for houses are made by the town’s UDC inspector under the town permit, so schedule them with the inspector named on that permit, not with the county. After a septic system is installed, the county tracks its upkeep: the licensed pumper or plumber who services the system files the maintenance report in Ascent.

Wisconsin building code in Polk County

FEMA’s Community Status Book lists Polk County (community 550577) as participating in the National Flood Insurance Program, with flood maps effective September 16, 2011, the maps the county adopted in September 2011. Floodplain boundaries can be viewed on the county’s Beacon map.

Wisconsin's Uniform Dwelling Code covers one- and two-family homes. Its Commercial Building Code covers public buildings, workplaces and buildings of three or more units. Local ordinances must conform to both. Wisconsin rules

Polk County permit search and official resources

Every land use and sanitary permit, current or historic, can be looked up in the county’s Ascent Permit Management Suite by parcel number, permit number or landowner name; set the permit status to pending to see applications under review.

• Polk County Zoning
• Zoning FAQs: land use, building permits, driveways, addresses
• Permits, applications and forms
• Fees page
• Land Information Fee Schedule (effective January 1, 2026)
• Sanitary system permits and agreements
• Shoreland resources and lake classification
• Floodplains
• Chapter 42 zoning ordinance
• Zoning staff directory
• DSPS UDC delegated agents list
• FEMA Community Status Book, Wisconsin

Polk County building permit FAQs

Does Polk County issue building permits?

No. The county issues land use, sanitary and address permits; UDC building permits for new houses come from the town building inspector.

Do I need a county permit for a shed?

Yes, if county zoning applies to the lot and the shed is over 64 square feet: $160 up to 144 square feet and $210 above that.

Which towns have county zoning?

Shoreland zoning applies in every town; outside shoreland, 16 towns use county zoning, including Alden, Balsam Lake, Lincoln and Osceola.

How much are county permits for a new house?

$475 for the land use permit, $525 for a conventional or mound sanitary permit and $150 for the rural address under the 2026 schedule.

How long does a land use permit take?

Allow about two weeks; for a new house the county allows one to two weeks after the sanitary permit is issued.

How close can I build to a lake?

Houses and accessory buildings must be 75 feet from the ordinary high water mark; boathouses 10 feet.

Simplify Polk County permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Wisconsin. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Polk County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.