ADUs are allowed in Sioux FallsTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Sioux Falls, SD
Is your property eligible for an ADU?
# of Properties
46,614
Owner-occupied
80%
Zoning districts
34
Median Lot Size
0.19 acres
Avg Income
$88,344
Residential Types:
46,614 housing units
Single Family
93%
2-3 Family
3%
Apts (4+ units)
2%
Other
2%
Zoning Districts:
66,589 parcels · 34 districts
RS
56%(37,056)
RD-1
12%(7,904)
RT-1
7%(4,584)
A-1
6%(4,143)
Other
19%(12,902)
ADU Rules
What can you build in Sioux Falls, SD?
Sioux Falls, SD 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 75% of the finished floor area of the primary dwelling.
Detached ADU Size Limits
- –Maximum size is 40% of the primary dwelling’s floor area in city DD2 and DD3 districts.
- –Maximum size is 50% of the primary dwelling’s finished floor area (countywide).
Max Units
- –1 ADU per lot on single-family parcels (any ADU type); 1 detached ADU per lot.
Owner Occupancy
- –One of the units must be owner-occupied.
Parking
- –2 spaces/ADU; no maximum; no listed exceptions
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 South Dakota municipalities
Rules change at the town line. Check the municipality your property is actually in.
Lincoln County