ADU rules in Milton, WI — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Milton allows ADUs by-right in single-family zones under its 2025 zoning rewrite (Chapter 78). Wisconsin 2023 Wis. Act 217 / 2024 Wis. Act 167 reinforces that municipalities cannot prohibit ADUs in residential districts. Building permit and setback compliance required.
City of Milton's zoning ordinance rewrite (Chapter 78, effective April 28, 2025) permits an accessory dwelling unit by-right (no public hearing) either attached to or detached from the principal residence. Statewide, Wisconsin law took effect in early 2025 making ADUs legal by-right in single-family zones across the state. ADUs must comply with applicable district setbacks, lot coverage, and Wisconsin Uniform Dwelling Code building standards. ADUs are subject to the City's standard building permit, plumbing, and electrical inspection process. Detached ADUs are treated as accessory structures and must satisfy the underlying zoning district's accessory-building setback and height requirements.
Contact your local code enforcement office for specific penalty information.
Milton, WI
Milton regulates amplified music under the general noise ordinance. Sound amplification permits available for events. WI Stat. §947.01 applies.
Milton, WI
Milton considers excessive barking a nuisance. Animal control handles complaints. WI Stat. §174 covers dog regulation statewide.
Milton, WI
Milton enforces quiet hours in this small city (pop. 6,000) between Janesville and Fort Atkinson. Rural-suburban character and agricultural surroundings defi...
Milton, WI
Milton manages parking along its small commercial area and residential streets. Winter alternate-side parking rules enable snow plowing operations.
Milton, WI
Milton restricts commercial vehicle parking in residential zones. Weight, size, and signage limits apply. Overnight heavy truck storage prohibited.
Milton, WI
Milton requires vehicles parked on improved surfaces. Front lawn parking prohibited. Driveway modifications require permits.
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