Accessory Structures in Middleton, WI (2026)
2 verified accessory structures rules for Middleton, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
The City of Middleton allows accessory dwelling units under Chapter 10 (Zoning Ordinance) of the Middleton Municipal Code, adopted under city zoning authority granted by Wis. Stat. Sec. 62.23. ADUs are permitted accessory to single-family dwellings on residential lots. The unit is capped at the smaller of 900 square feet or 50% of the primary home's floor area. Owner-occupancy of the property is required (the principal dwelling or the ADU itself), though the ADU may be rented. Two-story ADUs are not allowed and the maximum height is 22 feet. A conditional use permit is not required, but a zoning permit and building permit must be issued by the City of Middleton before construction.
Accessory Dwelling Unit Rules (Middleton, WI)
Some RestrictionsShed Rules
The City of Middleton requires a Shed/Fence Zoning Permit under Sec. 10.10.41 of the 2024 Zoning Ordinance before any shed is erected or altered. Residential storage sheds must sit at least 3 feet from any property line, may be no taller than 15 feet (or 22 feet only if the shed meets the principal building's setbacks), require plan review for any shed over 70 square feet, and must use construction methods matching the principal dwelling. Sheds located 10 feet or less from the dwelling unit must have 3/4-hour fire protection. Permit fees for one- and two-family lots total $80 ($50 zoning + $30 building).
Shed Rules in Middleton
Some RestrictionsLooking for Dane County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Middleton city rules.
Accessory Structures in Dane County →