What Are Wisconsin Impact Fees?
Wisconsin municipalities levy impact fees under Wis. Stat. § 66.0617, which requires a public facilities needs assessment and restricts fees to capital costs serving new development — parks, sewer, water, stormwater, roads, and fire/police facilities. School impact fees are not permitted.
Madison's Dane County suburbs and Fox Valley growth communities are frequent adopters, layering fees with utility connection charges. Wisconsin figures on impactfees.org are model estimates for early comparison; needs assessments are public records, so schedules are verifiable per municipality.
Wisconsin figures are illustrative estimates from our statewide cost model — calibrated to local construction costs and community size — rather than verified fee schedules. Use them for early budgeting and site comparison, and see our methodology for how estimates are built.
Counties Covered
Our calculator covers all 72 Wisconsin counties:
Click any county to open the calculator pre-loaded with that jurisdiction.
Major Wisconsin Markets
Click any market to open the calculator pre-loaded with that city.
Milwaukee / Milwaukee & Waukesha
MMSD charges and suburban Waukesha impact fees shape budgets.
Madison / Dane
Fast-growing suburbs levy park, utility, and fire impact fees.
Green Bay & Appleton / Brown & Outagamie
Fox Valley communities pair impact fees with connection charges.
Kenosha / Kenosha
I-94 corridor growth supports utility and park fees.
How the Calculator Works
- Pick your development type — Single-family, multifamily, commercial, industrial, or office.
- Search or pin your site — Enter an address or drop a pin anywhere in Wisconsin.
- We identify the jurisdiction — City, county, and state are resolved automatically.
- Get an instant breakdown — Water, sewer, road, park, school, and fire fees by category — verified where researched, clearly-labeled estimates where not.