Accessory Structures in Ashwaubenon, WI (2026)
2 verified accessory structures rules for Ashwaubenon, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
The Village of Ashwaubenon defines an Accessory Dwelling Unit in Sec. 17-3-200 of the Zoning Code (Chapter 17) as 'a secondary dwelling unit established in conjunction with and clearly subordinate to a principal dwelling unit, whether part of the same structure as the principal dwelling unit, or as a detached structure on the same lot.' The Zoning Code is adopted under Wis. Stat. Sec. 61.35 (village zoning) and Sec. 62.23. ADUs are not listed as a Use Type in the Sec. 17-4-200 Household Living category (which lists single-family detached, single-family attached, two-family, townhouses, and multifamily). The Sec. 17-5-100 Table of Dimensional Standards in Residential Districts notes that the residential floor-area minimums 'do not apply to accessory dwelling units.' Residential districts are R-1 (One-Family), RE (Rural Estate), R-2 (Two-Family), and R-3 (Multiple-Family).
Accessory Dwelling Unit Rules (Ashwaubenon, WI)
Some RestrictionsVillage of Ashwaubenon Code, ch. 17 (Zoning) - Definitions (Accessory Dwelling Unit / Accessory Building) and Table 17-5-200(5) Note [2]
ACCESSORY DWELLING UNIT. A secondary dwelling unit established in conjunction with and clearly subordinate to a principal dwelling unit, whether part of the same structure as the principal dwelling unit, or as a detached structure on the same lot. ACCESSORY BUILDING. A building, the use of which clearly is subordinate to and incidental to the use of the main building on the same lot. [TABLE 17-...
Shed & Carport Rules
Ashwaubenon requires a building permit before erecting any accessory building, including sheds, and caps their footprint at 576 square feet on lots under 15,000 square feet with an attached garage, rising to 768 or 936 square feet on larger lots. Sheds and detached garages in the R-1 and R-2 districts are also capped at 15 feet in height and must sit at least four to six feet off the side and rear lot lines.
Shed & Accessory Building Rules (Ashwaubenon, WI)
Some RestrictionsAshwaubenon Municipal Code § 17-4-400(A)(2), (C)(3)
All accessory buildings shall require the issuance of a building permit. ... On lots with less than 15,000 square feet with an attached one- or two-car garage, the total square footage of accessory buildings may not exceed 576 square feet. ... The maximum height of accessory buildings shall not exceed 15 feet. ... Every accessory building on a lot containing a two-car attached garage shall have...
Looking for Brown County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ashwaubenon city rules.
Accessory Structures in Brown County →