

ADUs are allowed in Town Of OleanTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Town Of Olean, NY
Is your property eligible for an ADU?
# of Properties
1,283
Owner-occupied
58%
Zoning districts
1
Avg Home Value
$53,429
Median Lot Size
1.54 acres
Avg Income
$75,827
Residential Types:
1,301 housing units
2-3 Family
77%
Apts (4+ units)
23%
Zoning Districts:
1 parcel · 1 district
R2
100%(1)
ADU Rules
What can you build in Town Of Olean, NY?
Town Of Olean, 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 size of 25% of the principal dwelling’s original gross floor area for an internal or attached unit
Owner Occupancy
- –Owner-occupancy not required.
Parking
- –No numeric ADU min/max; must provide adequate off-street parking for the ADU occupants in addition to the primary residence (primary dwelling: 2 spaces). Special Use Permit required; waivers possible where on-street parking exists or via shared parking.
Rental Restrictions
- –Short-term/transient rentals prohibited for ADUs.
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.
Cattaraugus County