Trempealeau County, Wisconsin Building Permit Guide

Trempealeau County is one of the Wisconsin counties that hold a state delegation to enforce the Uniform Dwelling Code, so the Department of Land Management in the Courthouse at 18600 Hobson Street, Whitehall (715-538-2311 ext. 223), issues the building permit for a new home, addition, alteration, cabin or detached garage in every town, village and city except the City of Blair. A new house needs a county zoning permit and building permit, signed first by the town chair or clerk, and an approved sanitary permit comes before either. The county asks for at least a week of turnaround and doubles fees for work started early.

What requires a permit in Trempealeau County?

The county’s own instruction is to call the Department of Land Management before any construction, earth moving, filling or grading, because the county is zoned and several of its ordinances can apply to one project. Its building construction page sorts the common permits by project.

What the county decides and what the state holds

The County Board’s ordinances set the local rules: the Comprehensive Zoning Ordinance (general requirements in Chapter 3, particular uses in Chapter 4, definitions in Chapter 18), the Sanitary and Private Sewage System Ordinance (Chapter 17, adopted March 19, 2001), animal waste management (Chapter 22), the county’s Uniform Dwelling Code ordinance (Chapter 23), subdivisions (Chapter 24), floodplain zoning (Chapter 25), private wells (Chapter 26) and shoreland protection (Chapter 27). The county describes Chapter 23 as covering the construction and inspection of all new one- and two-family dwellings and their alterations and additions. The dwelling standards themselves are the state’s.

Trempealeau County building department: who handles permitting

The Department of Land Management combines land conservation, planning, zoning and building inspection, under the Environment and Land Use (ELU) Committee; the Board of Adjustment hears variances. Mark Carlson is the Zoning Administrator. Applications are mailed or delivered to the Courthouse, and the permits page also takes them by email to the zoning staff.

Towns, villages and cities: who issues the home permit

The state’s list of Uniform Dwelling Code delegations, current as of September 24, 2026, shows the County of Trempealeau as a delegated agent, with General Engineering as its inspection agency, and marks every other municipality in the county “See County of Trempealeau” except the City of Blair, which holds its own delegation. The county’s permits page links to General Engineering’s building permit access page. Zoning inside a city or village is that municipality’s, so ask its office about local requirements. Populations are Census 2025 estimates.

Trempealeau County permit types and application documents

For a new house the department sends a New Home Building Packet on request, and its web checklist is a list of yes-or-no questions: once every answer is yes, the owner holds the county permits needed to start.

Residential permits

• Registered deed. A copy of the recorded deed must be on file before any permit is issued, for houses, additions and accessory buildings alike.
• Zoning and building permits. A site-built home needs both; a manufactured home needs a manufactured home permit instead of the building permit.
• Municipal signature. The town chair or clerk, or the village or city official, signs the county building or manufactured home permit before it is submitted, and can say whether any local permit is also needed.
• Erosion control plan. Approved before construction or earth moving starts; the plan carries no fee.
• Uniform number application. Every new residence needs an address, applied for with the permits.
• Fees. Paid with the application; nothing is processed until they are.

A manufactured home follows the same path with its own permit: the deed, the approved sanitary permit, the municipal official’s signature, the erosion control plan and the address application all come before it is placed or replaced.

An addition needs the deed, the zoning and building permits with the municipal signature, the erosion control plan and the fees. A garage, shed or deck needs the zoning permit and erosion control plan, and the county asks owners to check with the town about any town permit.

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

Commercial permits

The county’s building delegation covers one- and two-family dwellings; commercial buildings follow the state’s plan approval process. County zoning still applies to commercial uses in the unincorporated area through land use permits, conditional uses, special exceptions, sign permits and rezoning petitions, and livestock facilities, animal waste storage and non-metallic or metallic mining have their own county permits.

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

What comes before the building permit

• Certified survey map. The subdivision ordinance covers all unincorporated land, and a land division of less than 20 acres needs a certified survey map approved by the department before it is recorded.
• Driveway approval. From the town chair, the County Highway Department or WisDOT depending on the road, and every driveway must meet the county’s minimum construction and safety standards.
• Soil test and sanitary permit. A sanitary permit must be approved before the county issues zoning, building or manufactured home permits for a residence.
• Well. A well location permit ($30) before a new or replacement well is drilled. The new-home checklist says the County Health Department regulates private wells, while the department’s Well Permit page says Land Management regulates well locations; start with Land Management.

Trempealeau County permit costs and fees

The department keeps its permit amounts in two PDFs, a 2026 Fee Schedule Worksheet linked from the permits page and a sanitary Permit Fees sheet linked from the POWTS page; the department’s web pages themselves state only the rules below. Ask the department at 715-538-2311 ext. 223 for the worksheet and the amount for your project before mailing an application, since nothing is processed without the full fee.

The doubling rule is broad: it applies to any construction project, including earth moving, filling or grading, done before every applicable county permit is issued. A town, village or city may also charge for its own permit where it requires one.

Trade permits and who may pull them

Because the county enforces the Uniform Dwelling Code for new homes and additions in all but one municipality, its Chapter 23 permit covers the construction and inspection of those dwellings; the department’s permit list has no separate county electrical, plumbing or HVAC permit. Septic work stays with licensed trades: a licensed plumber designs the system, signs the sanitary permit application and installs the system once the county issues the permit, and a licensed septic pumper empties the tank. Reconnecting to an existing code-compliant system, repairing a system, and installing a privy, portable restroom, or chemical or incinerating toilet each need a county sanitary permit as well.

• Soil testers. A licensed soil tester does the soil test and site evaluation that starts every septic project; the department posts a list. Once the test is done, keep the tested area clear of all land-disturbing work and protect the benchmark the tester sets; the test determines the type and location of the system.
• Well drillers. A licensed driller installs the well; the new-home checklist links a list.
• Plan approval. The county takes conventional and holding tank plans itself; other system designs go to the state for plan approval first, which the county warns often takes several weeks.
• Builders. A contractor needs the state Dwelling Contractor certification and a certified Dwelling Contractor Qualifier before the county can issue a dwelling permit; an owner-occupant building their own home is exempt.

How to apply for a Trempealeau County permit

Review, corrections and what causes delay

The county’s ordinance gives it 30 days to review most permit applications; staff try to issue them within five working days, but the permits page tells applicants to plan on at least a week. Applications without the fees are not processed, and permits for a residence wait on an approved sanitary permit, which in turn waits on the soil test and, for mounds and other non-conventional systems, on state plan approval. A building permit without the town official’s signature, or a new home without its address application and erosion control plan, is not complete. Approved permits are sent by mail, so allow for mailing time too.

Inspections in Trempealeau County

For homes under the county’s delegation, the construction inspections are carried out through the county’s building permit program, with General Engineering named as the county’s inspection agency on the state list; the county’s permits page links to that firm’s building permit access page. In the City of Blair the city’s own delegated inspector does this work.

Septic systems are installed by the licensed plumber after the county issues the sanitary permit, and the county then mails a pumping notice every third year; the tank must be pumped by a licensed septic pumper. The county also reviews the erosion control plan for every project, and the department rents out a hydro seeder so owners can seed disturbed ground quickly.

The approved zoning and building permits arrive by mail, and they are what authorize construction and earth moving to begin. Questions about a permit already in review go to the department at 877-538-2311 ext. 223.

Wisconsin building code

FEMA’s Community Status Book lists Trempealeau County (community 555585) as participating in the National Flood Insurance Program, with a current effective flood map dated April 4, 2011; Chapter 25 of the county code is the floodplain zoning ordinance.

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

Trempealeau County permit search and official resources

To ask about an existing zoning, building or sanitary permit, call the Department of Land Management at 715-538-2311 ext. 223 with the parcel number or address. The ordinances are kept in the county’s online document library and the fee sheets are PDFs on the department’s pages; the department can supply copies.

• Trempealeau County Department of Land Management
• Building construction permits
• Permits and applications
• New home or manufactured home checklist
• Addition or alteration checklist
• Garage, shed or deck checklist
• Sanitary (POWTS) permits
• Erosion control
• Well permit
• Ordinances administered by Land Management
• Land Management staff contacts
• DSPS list of UDC delegated agents
• FEMA Community Status Book, Wisconsin

Trempealeau County permit FAQ

Does Trempealeau County issue building permits for houses?

Yes. The county holds the state’s Uniform Dwelling Code delegation for every town, village and city except the City of Blair.

I live in Arcadia or Whitehall. Is the county my building office?

For a new home or addition, yes; the state list marks both cities “See County of Trempealeau”. Ask the city about its own zoning.

Do I need a permit for a shed or deck?

Yes, a county land use / zoning permit and an erosion control plan; a detached garage also needs the building permit.

Who has to sign my building permit?

You, and the town chair or clerk (or the village or city official) before you submit it.

How long does a permit take?

The ordinance allows 30 days; staff aim for five working days, and the county says to plan on at least a week.

Can I start grading before the permit comes?

No. Earth moving, filling or grading before the permits are issued doubles the fees.

Do I need the septic permit first?

Yes. A sanitary permit must be approved before the county issues zoning, building or manufactured home permits for a residence.

Where do I get a driveway permit?

From the town chair for a town road, the County Highway Department (877-538-4799) for a county road, or WisDOT (608-785-9967) for a state highway.

Simplify Trempealeau 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 Trempealeau County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.