Accessory Structures in Milton, WI (2026)
2 verified accessory structures rules for Milton, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Milton allows one accessory dwelling unit per single-family lot under City of Milton Code of Ordinances Sec. 78-03.28(1), capped at 750 square feet. The owner must occupy either the principal home or the ADU as a primary residence, record a restrictive agreement with the city, and obtain a zoning permit before the unit is built or occupied.
Milton WI Accessory Dwelling Unit Rules
Some RestrictionsMilton Code of Ordinances § 78-03.28(1)
Accessory dwelling unit. ... a residential dwelling unit located on the same lot as a single-family dwelling unit, either in the same building as the single-family dwelling unit or in a detached building. An ADU is independently habitable and provides the basic requirements of shelter, heating, cooking, and sanitation. ... (e)For accessory dwelling units located on the same lot as a single-fami...
Shed & Carport Rules
A shed or storage building in the City of Milton can sit in the side or rear yard setback, but not the front, only if it is no taller than 16 feet and no larger than 120 square feet under the minor accessory structures table in Chapter 78.
Milton Shed Size and Setback Rules
Some RestrictionsMilton Code of Ordinances § 78-03.28(13)
(13)Minor accessory structures and obstructions. Minor accessory structures are those features that are generally less than 16 feet in height and less than 200 sf in area and which, in the determination of the zoning administrator, are similar in size, character, and function to those listed. ... Minor Accessory Structures and Obstructions Front Yard Setbacks Side Yard Setbacks Rear Yard Setbac...
Looking for Rock County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Milton city rules.
Accessory Structures in Rock County →