ADUs are allowed in Watertown CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Watertown City, WI
Is your property eligible for an ADU?
# of Properties
6,949
Owner-occupied
84%
Zoning districts
16
Avg Home Value
$254,014
Median Lot Size
0.24 acres
Avg Income
$74,597
Residential Types:
6,949 housing units
Single Family
100%
Zoning Districts:
8,224 parcels · 16 districts
SR-4
45%(3,679)
TR-6
39%(3,201)
MR-8
5%(405)
CB
3%(268)
Other
8%(671)
ADU Rules
What can you build in Watertown City, WI?
Watertown 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 size of 800 sq ft for internal or attached ADUs
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft; includes parking and half-story floor area
Max Units
- –1 accessory dwelling unit per parcel (lot)
Owner Occupancy
- –Owner must occupy at least one dwelling on parcel as primary residence
Parking
- –No minimum/maximum parking for ADUs; parking is waived within the Central Business (CB) District.
Rental Restrictions
- –ADUs cannot be used for short-term 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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ADU rules in other Wisconsin municipalities
Rules change at the town line. Check the municipality your property is actually in.
Jefferson County