

ADUs are allowed in Niagara FallsTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Niagara Falls, NY
Is your property eligible for an ADU?
# of Properties
19,870
Owner-occupied
57%
Zoning districts
27
Avg Home Value
$52,920
Median Lot Size
0.12 acres
Avg Income
$58,587
Residential Types:
19,870 housing units
Single Family
70%
2-3 Family
15%
Apts (4+ units)
4%
Other
11%
Zoning Districts:
22,807 parcels · 27 districts
R1-C
27%(6,098)
R3-B
17%(3,893)
R2-B
16%(3,563)
R1-A
13%(3,071)
Other
27%(6,182)
ADU Rules
What can you build in Niagara Falls, NY?
Niagara Falls, NY 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
Parking
- –Min 1 space/ADU (Suburban/Urban); Downtown N/A. Max 1 space/ADU (125% of min); D1: max not apply; structured parking within a building footprint does not count toward max. Exceptions: spaces may be located off-site within 500 ft via deed/lease/easement; front-yard restrictions in residential; Board of Appeals may reduce via Parking Demand Study.
Rental Restrictions
- –Short-term rentals (<30 days) prohibited for ADUs (detached or attached).
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.
Niagara County