ADU rules for Janesville City
Accessory Dwelling Unit (ADU) Rules for Janesville City, WI
Is your property eligible for an ADU?
# of Properties
24,520
Owner-occupied
76%
Zoning districts
24
Avg Home Value
$310,038
Median Lot Size
0.25 acres
Avg Income
$76,610
Residential Types:
24,606 housing units
Single Family
99%
Apts (4+ units)
1%
Zoning Districts:
25,255 parcels · 24 districts
R1
58%(14,548)
R2
27%(6,831)
R3
5%(1,269)
B3
1%(377)
Other
9%(2,230)
ADU Rules
What can you build in Janesville City, WI?
Janesville City, WI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
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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Is your property eligible for an ADU?
ADU rules in other Wisconsin municipalities
Rules change at the town line. Check the municipality your property is actually in.
Rock County