ADUs are allowed in Wauwatosa CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Wauwatosa City, WI
Is your property eligible for an ADU?
# of Properties
14,732
Owner-occupied
89%
Zoning districts
49
Avg Home Value
$399,080
Median Lot Size
0.16 acres
Avg Income
$113,325
Residential Types:
14,732 housing units
RESIDENTIAL
100%
Zoning Districts:
16,368 parcels · 49 districts
R1-6
63%(10,239)
R1-9
15%(2,497)
R2
11%(1,758)
C2
3%(435)
Other
9%(1,439)
ADU Rules
What can you build in Wauwatosa City, WI?
Wauwatosa 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
Interior / Attached ADU Size Limits
- –Maximum ADU size is the lesser of 1,000 sq ft or the principal dwelling’s gross floor area (excluding attached garage and very low-height/inaccessible areas).
Detached ADU Size Limits
- –Maximum detached ADU size is the lesser of 1,000 sq ft or the principal dwelling’s gross floor area (excluding attached garage and certain non-habitable/low-height areas).
Max Units
- –1 ADU per lot
Parking
- –0 spaces/ADU; no max specified; exception: existing required parking for the principal dwelling unit must be maintained or replaced on-site
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.
Milwaukee County