Accessory Dwelling Unit (ADU) Rules for Unincorporated Eau Claire, WI

Is your property eligible for an ADU?

# of Properties

Zoning districts

Zoning Districts:

45 parcels · 3 districts

EA-2

93%(42)

4%(2)

2%(1)

ADU Rules

What can you build in Unincorporated Eau Claire, WI?

Unincorporated Eau Claire, 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: By Right

Interior / Attached ADU Size Limits

–Maximum size of 800 sq ft for internal or attached ADUs in the Traditional Neighborhood Development (TND) district.

Detached ADU Size Limits

–Maximum size of 800 sq ft for detached ADUs in Traditional Neighborhood Development (TND) districts.

Parking

–No ADU-specific parking; general residential minimums apply (e.g., 2 spaces per dwelling for one- and two-family dwellings). Reductions up to 10% near transit and 5% in CBD with bicycle parking; no ADU waivers identified.

Rental Restrictions

–Detached ADU limited to on-premises employees and their immediate family; no rentals to others (no short-term/vacation rentals).

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.

Eau Claire County

Eau Claire City

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