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ADUs are allowed in Siloam Springs
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Accessory Dwelling Unit (ADU) Rules for Siloam Springs, AR

Is your property eligible for an ADU?

# of Properties
6,075
Owner-occupied
59%
Zoning districts
17
Avg Home Value
$44,197
Median Lot Size
0.24 acres
Avg Income
$79,119
Residential Types:
6,075 housing units
Single Family
86%
Other
14%
Zoning Districts:
7,832 parcels · 17 districts
R-2
63%(4,963)
R-3
13%(1,053)
C-2
7%(573)
P-D
4%(295)
Other
12%(948)

ADU Rules

What can you build in Siloam Springs, AR?

Siloam Springs, AR follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Max Units

  • A-1: up to 1 ADU per lot; R-E, R-1, R-2: 0 ADUs per lot; R-3, R-4, M-H, R-O: none specified

Owner Occupancy

  • Owner must inhabit the primary dwelling on the lot.

Parking

  • No ADU-specific parking requirements; citywide rule: two off-street spaces per dwelling (may be reduced up to 30%; off-site parking within 300 ft via covenant; Downtown Parking District exempt if ADU is a separate unit).

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 Arkansas municipalities

Rules change at the town line. Check the municipality your property is actually in.

Benton County

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