Madison ADU Permit Fees & Cost Calculator
Madison appears to require a site plan approval and building permits for ADUs, plus a Parks impact fee that the city describes as about $4,500 and says should be verified with Parks for the current rate. Dane County’s zoning permit schedule also shows a $50 base fee plus $0.10 per square foot for residential projects in county zoning cases, but whether that applies depends on whether the property is in city or county jurisdiction.
Free ADU fee calculator
Estimate local ADU fees
Step 1 of 5: Location
The calculator uses staged city data from the ADUFee database with visible confidence levels and dated source tracking.
Fee overview
The provided search results do not include a complete official Madison permit fee schedule for ADUs, so exact building permit, plan review, inspection, utility connection, and school-related fees could not be confirmed from official sources.
The Dane County zoning fee may not apply inside Madison city limits; parcel jurisdiction should be checked before using it in budgeting.
The Parks impact fee amount is explicitly described as approximate on the city page and should not be treated as a final quoted fee without verification.
The ADU is within the City of Madison unless a source explicitly indicates Dane County-only jurisdiction.
The user wants permit and pre-development fees, not construction costs.
The Parks impact fee applies to the ADU as described by the city page, but the exact current amount should be verified directly with Madison Parks.
FAQs
Are Madison ADU fee estimates official?
No. ADUFee.com provides planning estimates only. Final fees are set by the city, utility providers, school district, and other agencies.
What sources are used for Madison?
The database stores city, state, utility, school, county, and other source links where available. Each estimate should still be verified locally.
Can ADU fees vary within Wisconsin?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.