ADU rules for Sun Prairie City
Accessory Dwelling Unit (ADU) Rules for Sun Prairie City, WI
Is your property eligible for an ADU?
# of Properties
10,717
Owner-occupied
85%
Zoning districts
42
Avg Home Value
$354,217
Median Lot Size
0.27 acres
Avg Income
$96,857
Residential Types:
10,717 housing units
Single Family
100%
Zoning Districts:
12,526 parcels · 42 districts
SR-4
52%(6,573)
PD
26%(3,204)
UR-12
8%(1,041)
MR-8
8%(995)
Other
6%(713)
ADU Rules
What can you build in Sun Prairie City, WI?
Sun Prairie 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.
Dane County