ADUs are allowed in Unincorporated RileyTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Riley, KS
Is your property eligible for an ADU?
# of Properties
2,129
Owner-occupied
69%
Zoning districts
50
Avg Home Value
$255,935
Median Lot Size
1.00 acres
Avg Income
$93,871
Residential Types:
2,129 housing units
Residential
100%
Zoning Districts:
7,639 parcels · 50 districts
AG
47%(3,559)
SF-3
18%(1,389)
SF-2
14%(1,096)
SF-1
5%(393)
Other
16%(1,202)
ADU Rules
What can you build in Unincorporated Riley, KS?
Unincorporated Riley, KS 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 is the lesser of 1,000 sq ft or 40% of the principal building’s total floor area.
Detached ADU Size Limits
- –Maximum size of 2,000 sq ft for a detached secondary dwelling
Owner Occupancy
- –Owner must occupy either the principal dwelling or the ADU
Parking
- –Min: 1 space per studio or 1-bedroom; 2 spaces per 2+ bedrooms; detached ADU: 2 spaces; Max: none; Exceptions: on-street spaces abutting the lot may reduce the minimum; Department may adjust requirements per a parking study.
Rental Restrictions
- –Short-term rentals (<30 days) allowed with a short-term rental license; if both a principal dwelling and an ADU exist on the lot, only one unit may be licensed; no STR within 500 feet of another STR unless waived.
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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Learn the key rules and size limits for ADUs