Accessory Structures in Wausau, WI (2026)
2 verified accessory structures rules for Wausau, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Wausau regulates dwellings, accessory uses, and accessory structures through Title 23 (Zoning) of the Wausau Municipal Code, adopted under Wis. Stat. Sec. 62.23. Residential zoning districts include SR-2, SR-3, SR-5, and SR-7 single-family residential districts (see Article II - Establishment of Zoning Districts) and various two-family/multifamily and mixed-use districts including UMU (Urban Mixed Use). Land use regulations (Article III, beginning at Sec. 23.03) and accessory use/structure standards establish where and how accessory living quarters are permitted. The Wausau Municipal Code does not explicitly use the term 'ADU' in its public table of contents; property owners considering an accessory dwelling, in-law unit, or second residential unit should confirm permitted/conditional status with the Inspections & Zoning Division at 407 Grant St., which administers building and zoning permits.
Accessory Dwelling Unit Rules (Wausau, WI)
Some RestrictionsShed Rules
Sheds in Wausau are accessory structures under Title 23 of the Wausau Municipal Code. The City of Wausau Inspections, Zoning and Electrical Systems Division requires a building permit for any detached garage, lean-to, storage building, gazebo or similar accessory structure - including prefab sheds and buildings built off-site and placed on the lot. Permit applications are submitted through the city's Evolve Permit Portal and are reviewed by the Inspections Division at (715) 261-6780.
Shed Rules in Wausau
Some RestrictionsWausau Inspection & Zoning Division — Permit Information
Permits are REQUIRED for the following: New construction or an addition to a building. Alterations/remodeling (kitchen cabinets, drywalling, etc.). Construction of a detached garage, lean-to, storage building, gazebo, etc., or any additions or alterations thereto. This includes placement of prefab sheds, and buildings built off-site. Note: canopy (tent-like) structures are not allowed. Construc...
Looking for Marathon County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Wausau city rules.
Accessory Structures in Marathon County →