ADU rules for Watertown
Accessory Dwelling Unit (ADU) Rules for Watertown, SD
Is your property eligible for an ADU?
# of Parcels
10,505
Avg Parcel Value
$319,977
Median Parcel Size
0.25 acres
ADU Rules
What can you build in Watertown, SD?
Watertown, SD follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Max Units
- –Detached ADU: 0 per lot (prohibited).
- –Attached/Internal ADU: none specified.
- –JADU: none specified.
Owner Occupancy
- –No owner-occupancy requirement.
Rental Restrictions
- –Detached ADU not permitted as a dwelling; 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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs