

ADUs are allowed in City Of PlattsburghTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for City Of Plattsburgh, NY
Is your property eligible for an ADU?
# of Properties
4,418
Owner-occupied
85%
Zoning districts
12
Avg Home Value
$245,906
Median Lot Size
0.18 acres
Avg Income
$71,765
Residential Types:
4,913 housing units
Single Family
68%
2-3 Family
12%
Apts (4+ units)
19%
Zoning Districts:
5,094 parcels · 12 districts
R2
45%(2,293)
R1
31%(1,568)
RC-1
6%(304)
RH
6%(286)
Other
13%(643)
ADU Rules
What can you build in City Of Plattsburgh, NY?
City Of Plattsburgh, 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: Not permitted
Interior / Attached ADU Size Limits
- –Maximum size of 33 1/3% of the total habitable floor area of the principal building.
Max Units
- –RH District: 1 accessory apartment per existing structure
Owner Occupancy
- –Owner must occupy and maintain a full-time residence in one unit.
Parking
- –1 on-site space per ADU (in addition to primary dwelling); no ADU-specific waivers or transit-based reductions; spaces must be in rear/side yard or paved front-yard driveway within width limits (R-1, R-2, RH).
Rental Restrictions
- –Detached ADU creation and rental prohibited.
- –Internal/Attached ADU: right to let ceases upon title transfer; may be rented only if the new owner secures the necessary permit.
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.
Clinton County