Accessory Structures in Green Bay, WI (2026)
2 verified accessory structures rules for Green Bay, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Green Bay allows one accessory dwelling unit per lot behind the main house, capped at 1,000 square feet, but only with a conditional use permit and owner-occupancy of one unit.
Green Bay ADU Zoning Standards
Significant RestrictionsGreen Bay Municipal Code § 44-1580(f)
Accessory dwelling units are permitted in conjunction with a primary detached single-family dwelling, two-family dwelling (duplex or semi-detached) or single-family attached dwellings (townhouses). They are not permitted in conjunction with multiple-family or mixed-use structures. (2) There shall be no more than one accessory dwelling unit on a parcel/lot. [...] (4) An accessory dwelling unit s...
Shed & Carport Rules
Green Bay allows two detached accessory structures on a one- or two-family lot under Section 44-590 and Table 44-4. The first may reach 1,000 square feet per dwelling unit and the second 200 square feet. Both are capped at 16 feet tall with 10-foot side walls, and sit 25 feet from the front lot line and 4 feet from the side and rear lines.
Green Bay Shed and Detached Accessory Structure Rules
Some RestrictionsGreen Bay Municipal Code § 44-590(c), Table 44-4
(c) Detached structures. Detached accessory structures shall be permitted in residential districts in accordance with the requirements shown in Table 44-4 and as follows: (1) Detached accessory structures shall be located to the side or rear of the principal building and are not permitted in front of the principal structures front or corner side façade and the abutting a street. (2) The maximum...
Looking for Brown County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Green Bay city rules.
Accessory Structures in Brown County →