ADUs are allowed in Cresskill BoroughTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cresskill Borough, NJ
Is your property eligible for an ADU?
# of Properties
229
Owner-occupied
16%
Zoning districts
22
Avg Home Value
$1,391,311
Median Lot Size
0.27 acres
Avg Income
$168,984
Residential Types:
229 housing units
Single Family
35%
Apts (4+ units)
30%
Condos
35%
Zoning Districts:
5,308 parcels · 22 districts
R10
80%(4,229)
R40
7%(366)
P
2%(109)
MU
2%(100)
Other
9%(504)
ADU Rules
What can you build in Cresskill Borough, NJ?
Cresskill Borough, NJ 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 of an internal or attached accessory apartment may not exceed the gross floor area of the existing principal dwelling.
Detached ADU Size Limits
- –Maximum detached accessory dwelling unit size of 600 sq ft (per accessory building cap)
- –Detached ADU floor area cannot exceed the gross floor area of the existing principal dwelling
- –ADU area limited by aggregate accessory-structure cap: total accessory floor area ≤ 15% of lot area; ADU is capped to the remaining allowance
Max Units
- –1 ADU per single-family lot; 0 ADU per lot for duplex or multifamily and non-R-10 zones; program-wide cap: no more than 10 creditable accessory apartments, null and void upon the ninth permit.
Owner Occupancy
- –Owner-occupancy is not required.
Parking
- –1 space/ADU; max none; on the same lot; driveway in the required front yard may count as one space for a 1-family residence; Planning Board may waive parking if municipal off-street facilities adequately serve the use
Rental Restrictions
- –ADUs must be rented only to income-eligible households for at least 10 years (deed-restricted; rents affordable per COAH/UHAC). Written lease required; no extra fees beyond approved rent (with limited exceptions); application fees capped at 5% of monthly rent. Administrative agent qualifies renters, sets rents/increases, and maintains a waiting list.
ADU State Law
What can you build in New Jersey?
- –New Jersey does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other New Jersey municipalities
Rules change at the town line. Check the municipality your property is actually in.
Bergen County
Allendale BoroughAlpine BoroughBergenfield BoroughBogota BoroughCarlstadt BoroughCliffside Park BoroughCloster BoroughDemarest BoroughDumont BoroughEast Rutherford BoroughEdgewater BoroughElmwood Park BoroughEmerson BoroughEnglewoodEnglewood Cliffs BoroughFair Lawn BoroughFairview BoroughFort Lee BoroughFranklin Lakes BoroughGarfieldGlen Rock BoroughHackensackHarrington Park BoroughHasbrouck Heights Borough