ADUs are allowed in Muskego CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Muskego City, WI
Is your property eligible for an ADU?
# of Parcels
10,008
Zoning districts
94
Median Parcel Size
0.51 acres
Zoning Districts:
10,115 parcels · 94 districts
RS-2
26%(2,626)
RS-3
7%(686)
ERS-3
5%(467)
RS-1
4%(421)
Other
58%(5,915)
ADU Rules
What can you build in Muskego City, WI?
Muskego City, WI follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Interior / Attached ADU Size Limits
- –In Traditional Neighborhood Developments, an internal/attached secondary dwelling unit is limited to 800 sq ft.
Detached ADU Size Limits
- –Maximum size of 800 sq ft for a secondary dwelling unit in the Traditional Neighborhood Development district.
Max Units
- –Single-family TND: secondary dwelling unit max 800 sq ft per unit; total secondary units ≤ 10% of SF units in the TND. Detached ADUs: 1 per lot by right; additional structures require Plan Commission approval.
Parking
- –No universal ADU parking minimum; 1 off-street space per ADU only in Traditional Neighborhood Development (TND) areas, off-street with unrestricted ingress/egress.
Rental Restrictions
- –Rentals prohibited for accessory residences and guesthouses; secondary dwelling units in Traditional Neighborhood Developments cannot be rented.
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.
Waukesha County