ADUs are allowed in Town Of RiverheadTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Town Of Riverhead, NY
Is your property eligible for an ADU?
# of Properties
13,775
Owner-occupied
57%
Zoning districts
43
Avg Home Value
$52,847
Median Lot Size
0.47 acres
Avg Income
$115,213
Residential Types:
13,989 housing units
2-3 Family
89%
Apts (4+ units)
10%
Condos
1%
Zoning Districts:
16,159 parcels · 43 districts
RA-40
27%(4,305)
RB-80
22%(3,496)
APZ
16%(2,542)
RB-40
9%(1,531)
Other
27%(4,285)
ADU Rules
What can you build in Town Of Riverhead, NY?
Town Of Riverhead, NY follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Special Permit
Interior / Attached ADU Size Limits
- –Maximum living area of 1,000 sq ft for an ADU on lots of 10 acres or more (by special permit).
Detached ADU Size Limits
- –Maximum ADU size of 1,000 sq ft on lots of 10 acres or more; Special Permit required.
Max Units
- –RA80: 1 ADU per lot; max 1,000 sq ft; on 10+ acre lots
- –RB40: 1 ADU per lot; max 1,000 sq ft; on 10+ acre lots
- –APZ: 1 ADU per lot; max 1,000 sq ft; on 10+ acre lots
ADU State Law
What can you build in New York?
- –New York does not have a statewide ADU law; all ADU rules are set by individual municipalities.
- –ADUs may also be referenced as "accessory apartments" or "accessory living units," and definitions are not standardized statewide.
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 New York municipalities
Rules change at the town line. Check the municipality your property is actually in.
Suffolk County
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