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ADUs are allowed in Oak Creek City
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Accessory Dwelling Unit (ADU) Rules for Oak Creek City, WI

Is your property eligible for an ADU?

# of Properties
9,734
Owner-occupied
86%
Zoning districts
21
Avg Home Value
$347,740
Median Lot Size
0.31 acres
Avg Income
$109,899
Residential Types:
9,734 housing units
RESIDENTIAL
100%
Zoning Districts:
11,471 parcels · 21 districts
RS-3
43%(4,893)
RS-4
14%(1,627)
RS-2
14%(1,616)
RM-1
11%(1,206)
Other
19%(2,129)

ADU Rules

What can you build in Oak Creek City, WI?

Oak Creek City, WI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size of 800 sq ft or 50% of the size of the principal building, whichever is less

Owner Occupancy

  • Owner must live on-site in the principal or ADU

Parking

  • Minimum: none specified; Maximum: up to 120% of the required spaces; Exceptions: ADU parking added to principal spaces; no tandem with principal spaces; not in front-yard setback; both units share one driveway; at least one required space per unit must be enclosed; Plan Commission may adjust minimums case-by-case.

Rental Restrictions

  • Short-term rentals allowed only if the ADU is the owner's primary residence; stays must be 3-120 days. Long-term rentals: no restrictions stated.

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.

Milwaukee County

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