ADUs are allowed in West Allis CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for West Allis City, WI
Is your property eligible for an ADU?
# of Properties
17,577
Owner-occupied
81%
Zoning districts
14
Avg Home Value
$243,725
Median Lot Size
0.12 acres
Avg Income
$72,004
Residential Types:
17,577 housing units
RESIDENTIAL
100%
Zoning Districts:
19,765 parcels · 14 districts
RB
47%(9,300)
RA-3
19%(3,789)
RA-2
14%(2,686)
C-2
7%(1,371)
Other
13%(2,619)
ADU Rules
What can you build in West Allis City, WI?
West Allis City, WI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Detached ADU Size Limits
- –Maximum detached accessory dwelling unit size of 800 sq ft
- –Detached accessory dwelling unit limited to 50% of the principal building’s area
Max Units
- –1 ADU per lot
Rental Restrictions
- –Short-term rentals for ADUs prohibited; long-term rental restrictions not 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