ADUs are allowed in Middleton CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Middleton City, WI
Is your property eligible for an ADU?
# of Properties
6,215
Owner-occupied
73%
Zoning districts
40
Avg Home Value
$417,571
Median Lot Size
0.30 acres
Avg Income
$126,675
Residential Types:
6,215 housing units
Single Family
100%
Zoning Districts:
7,200 parcels · 40 districts
PUD-S
32%(2,270)
SR-L
26%(1,847)
SR-M
10%(694)
MR-M
5%(367)
Other
28%(2,022)
ADU Rules
What can you build in Middleton City, WI?
Middleton 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 equal to the principal dwelling’s floor area.
Detached ADU Size Limits
- –Maximum ADU size cannot exceed the principal dwelling’s floor area on lots with a single-family or two-family home.
Owner Occupancy
- –Owner must occupy either the principal or ADU as primary residence.
Parking
- –No minimum off-street parking for an ADU; max 2 spaces per ADU (not to exceed principal-use max); 1 bicycle space per dwelling unit; garage stalls count as a parking space; general residential parking rules apply.
Rental Restrictions
- –Annual city STR license required; operator must be owner or lessee allowed by lease; corporate entities prohibited.
- –7–28 day stays: max 180 days per year with notice.
- –1–6 day stays: operator must occupy the residence as their primary; if not occupying, max 30 days per permitting year; no day limit if operator occupies during rental.
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.
Dane County