South Milwaukee, Wisconsin Building Permit Guide

In South Milwaukee, permits come from the city’s Inspection Department at City Hall, 2424 15th Avenue (414-768-8054), where Steve Petery is the Building Inspections Director. DSPS lists the city as a delegated Uniform Dwelling Code municipality, so it permits and inspects new houses itself, while DSPS does the plan exams for commercial and mixed-use buildings. A permit may take up to two weeks to review, and a zoning review through the Community Development Application comes first for new structures.

What requires a building permit in South Milwaukee?

The Inspection Department lists the new construction and alterations that need a building permit, and its trade pages cover electrical, plumbing and HVAC work separately. Work started before the department approves it is charged triple permit fees.

Exterior changes to commercial buildings follow the commercial facade guidelines adopted in November 2022; the city says those approvals are quick and carry no fee.

What South Milwaukee decides and what the state holds

The state codes govern construction, and the city’s permit forms remind applicants that work must meet all municipal and Wisconsin building codes. South Milwaukee decides its zoning, rewritten in 2025 to allow accessory dwelling units in most residential districts, its accessory building, fence and pool rules, its exterior material standards (vinyl siding only on one- and two-family homes), its homeowner electrical rules in Section 17.13 of the code, and the fees on its information sheets.

South Milwaukee building department: who handles permitting

The Inspection Department issues building, electrical, plumbing and HVAC permits and runs inspections, with a contracted inspector for commercial and industrial electrical work. Steve Petery is the Building Inspections Director. Zoning, site plans and land divisions sit with the Economic Development Manager, who is also the Zoning Administrator, and civil plans with the City Engineer. On DSPS’s list of Uniform Dwelling Code agents, current as of September 24, 2026, the City of South Milwaukee is delegated. South Milwaukee is not on DSPS’s October 19, 2026 lists for commercial building or plumbing plan review, matching the city’s development guide, which says DSPS does the plan exams for commercial and mixed-use buildings, commercial HVAC, commercial plumbing and commercial hoods; DSPS does list the city for commercial building inspection and commercial electrical inspection.

South Milwaukee permit types

South Milwaukee’s permits are paper or fillable PDF forms on the city’s Forms/Permits page: the 2025 building permit application, a separate roof and siding application, and electrical, HVAC and plumbing permits with homeowner waivers for electrical and plumbing work. The building permit application asks for the year the house was built, with a notice on the back for dwellings built before 1978, the contractor’s Dwelling Contractor and Dwelling Qualifier numbers, building and lot dimensions and the required and provided setbacks. Homeowners applying for their own permit sign the cautionary statement printed on the form.

Residential permits

• Garages and accessory buildings: a zoning evaluation through the Community Development Application comes first, then the building permit with a survey dated within the past 10 years and plans to scale. Sheds under 100 square feet skip the zoning application. Accessory buildings together may not exceed the house’s building envelope area, need a concrete foundation over 100 square feet, and generally may be no taller than the house, with a 24-foot maximum.
• Fences: a survey within 10 years marking the fence line and the building permit form. Front-yard fences top out at 4 feet in the Z-2 to Z-4 districts, side and rear fences at 6 feet, and chain-link is not allowed in front or side yards of homes.
• Decks: plans to scale, a $65 plan review check, and a survey if the deck extends outside the house’s setback; covered or enclosed decks count as part of the house.
• Pools: the building permit and a survey; pools sit at least 5 feet from lot lines and buildings, and those with walls under 42 inches need a fence with a self-closing gate.
• Accessory dwelling units: allowed in Z-2 and Z-3 districts with a single-family home, after a Community Development Permit for zoning review of detached and addition units, with the building permit taken out by the homeowner or a contractor holding state credentials.

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

Commercial permits

Commercial buildings and buildings with three or more units need state-approved plans with the application, and DSPS notifies the city and applicant when its review is done; the city does not collect plans from DSPS for you. An approved site plan comes before the building permit, then the city building permit application, two sets of civil plans sealed by a Wisconsin-registered architect or engineer with a PDF, plumbing, mechanical, sprinkler and alarm plans, and any state or county highway access and street opening permits. The City Engineer approves civil plans before a permit issues.

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

What comes before the building permit

• Zoning review. A Community Development Application with a survey showing the building envelope, hard surfaces, setbacks, height and materials; the zoning administrator is the first contact for new developments.
• Plan Commission and Common Council. All new buildings, expansions, additions and new uses need site plan approval; the Plan Commission meets on the fourth Tuesday at 6:30 p.m. as needed, and the Common Council on the first and third Tuesdays.
• Board of Appeals. Variances and appeals of staff decisions are heard on the second Thursday at 5:30 p.m. as needed.
• Right-of-way. Driveway approaches, street openings, obstructions, retaining walls and tree planting or removal in the right-of-way each have an Engineering permit.
• Erosion control. Land disturbance needs an erosion control permit, with measures in place before digging starts.

South Milwaukee permit costs and fees

South Milwaukee prints its building fees on its 2025 and 2026 information sheets and permit forms, and its zoning and right-of-way fees in the 2026 Administrative Fee Schedule. The building permit application has lines for the new construction, addition or alteration fee, plan examination, occupancy, inspection, the state permit seal and the footing inspection, but the rates for houses and additions are not printed on it or in the administrative schedule, so get a fee quote from the Inspection Department for those.

Worked example using the 2026 accessory structure sheet: a 24-by-24-foot detached garage (576 square feet) is $85 plus 576 × $0.36, or $292.36, plus the $75 zoning review, before any electrical permit; the city’s fee sheet does not say how cents are rounded. A zoning verification letter is $25, a zoning adjustment $50 and a certified survey map $250.

Trade permits and who may pull them

South Milwaukee’s code sets its own rules on who may do trade work, and each trade page states them.

• Electrical: anyone doing electrical work for others in the city must hold a master electrician license and a state electrical contractor license. Under Section 17.13, an owner who has owned and occupied a single-family home for at least one year may do electrical work there with a permit and a signed homeowner waiver, but not services or feeders, circuits over 110 volts, hot tubs, pools, central air or electric water heaters, which need a licensed electrician. The department’s summary page says thirty days of ownership; the code section and waiver say one year. Commercial and service inspections go to the contracted inspector at 414-762-2222, ext. 404. The 2025 electrical form adds item charges to its $50 base fee, such as $35 for a single-family service, $40 for a two-family service and $1 for each switch, outlet or light fixture.
• Plumbing: permits go only to a licensed master plumber, or to an owner working in a single-family building he or she owns and occupies; the city publishes a plumbing homeowner waiver form. Permits are a $50 base fee plus per-item charges, such as $7 for a bathtub.
• HVAC: permits go to an HVAC contractor, whose Wisconsin HVAC contractor and qualifier certificate numbers the 2025 form asks for, or to the property owner, and cover furnaces and boilers, air conditioners, ductwork, fireplaces and wood stoves, and commercial exhaust hoods. The form charges $210 for each commercial exhaust hood, and an electrical permit is also needed for every equipment replacement.
• House contractors: building and roof or siding applications ask for the Dwelling Contractor and Dwelling Qualifier numbers, and ADU building permits must be taken out by the homeowner or a contractor holding state credentials.

How to apply for a South Milwaukee building permit

Review, corrections and what causes delay

A missing zoning evaluation stops a new structure such as a garage or ADU, since the city will not issue the building permit until it is done, and a survey older than 10 years will not do. Commercial projects wait on DSPS plan approval, which the applicant must bring in, and on City Engineer approval of civil plans. Large plan sets over 11 by 17 inches should also be sent as an electronic copy.

Inspections and occupancy in South Milwaukee

Give at least 48 hours’ notice when you request an inspection, with the permit number and address, and call 414-768-8054 for residential building and electrical inspections. Final inspections are mandatory, every re-inspection is $50, and the city inspects erosion control measures periodically and after rainfall, with corrections due within 24 hours of notice.

No building may be occupied until an occupancy permit has been issued. For commercial and development projects, the city issues an occupancy certificate once all the work is complete and the project’s permits are closed, and it assigns any new address and confirms it to the postmaster. Business occupancy permits cost $175 for spaces over 300 square feet and $30 for smaller ones, plus $100 if a business opens before receiving its certificate.

Wisconsin building code in South Milwaukee

South Milwaukee enforces the state codes for houses as a delegated city, and DSPS keeps commercial plan review. FEMA’s Community Status Book lists South Milwaukee (community 550283) as participating in the National Flood Insurance Program, with flood maps effective October 24, 2024, and the city’s zoning review for an ADU checks the lot’s flood plain designation.

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

South Milwaukee permit search and official resources

For past permits, plans or inspection results on a property, ask the Inspection Department at 414-768-8054; the department’s information sheets note that the city may already hold a survey plat for your lot. Copies cost $0.05 a page under the city’s 2026 fee schedule, and a property status letter with city information is $25.

• South Milwaukee Inspection Department
• Building permits
• Forms and permits
• Building permit application (2025)
• Accessory structures and garages sheet (2026)
• Fences sheet (2026)
• Decks sheet (2026)
• Roof and siding permit application
• Electrical permits and homeowner rules
• Electrical installation by homeowner waiver
• Development guide (September 2026)
• Administrative fee schedule 2026
• Accessory dwelling units
• DSPS UDC delegated agents list
• FEMA Community Status Book, Wisconsin

South Milwaukee building permit FAQs

How much is a garage permit in South Milwaukee?

$85 plus $0.36 per square foot under the 2026 accessory structure sheet, plus a $75 zoning review; a 576-square-foot garage comes to about $292 before the zoning fee.

Can I do my own electrical work?

Only in a single-family home you have owned and lived in for at least one year, with a permit and the homeowner waiver, and not for services, feeders, circuits over 110 volts, pools, hot tubs, central air or electric water heaters.

Do I need a permit to reroof?

Yes. A residential roofing permit is $65, and no more than two layers are allowed.

How tall can my fence be?

In the Z-2 to Z-4 districts, 4 feet in the front and street side yards and 6 feet in side and rear yards; chain-link is not allowed in front or side yards of homes.

Who reviews commercial plans?

DSPS does the plan exams for commercial and mixed-use buildings, commercial HVAC, plumbing and hoods; bring the approved plans with the city application.

Can I build an accessory dwelling unit?

Yes, in Z-2 and Z-3 districts with a single-family home, after a zoning review and with a building permit taken out by the owner or a contractor holding state credentials.

How long does a permit take?

The city says permits may need a two-week review, after any zoning evaluation.

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