ADUs are allowed in Green Bay CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Green Bay City, WI
Is your property eligible for an ADU?
# of Properties
30,303
Owner-occupied
77%
Zoning districts
26
Avg Home Value
$193,933
Median Lot Size
0.22 acres
Avg Income
$75,740
Residential Types:
30,303 housing units
Single Family
100%
Zoning Districts:
35,263 parcels · 26 districts
R1
81%(28,514)
R3
4%(1,291)
OR
2%(877)
C1
2%(858)
Other
11%(3,723)
ADU Rules
What can you build in Green Bay City, WI?
Green Bay City, WI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size of 1,000 sq ft and no larger than the principal dwelling, whichever is less.
Detached ADU Size Limits
- –Maximum detached ADU size of 1,000 sq ft and not to exceed the gross floor area of the principal dwelling, whichever is less.
Max Units
- –1 ADU per parcel/lot for single-family detached, duplex/semi-detached, and townhouse lots
- –0 ADUs for multiple-family or mixed-use structures
Owner Occupancy
- –Owner must occupy either the primary dwelling or ADU
Parking
- –1 space/ADU on the same parcel; Downtown District requires evidence of off-site parking within the district (1 per dwelling unit) instead of on-site provision; single- and two-family lots: max 4 uncovered spaces per unit
Rental Restrictions
- –Short-term rentals are prohibited for any ADU; long-term rentals permitted.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Wisconsin municipalities
Rules change at the town line. Check the municipality your property is actually in.
Brown County