

ADUs are allowed in Dumont BoroughTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Dumont Borough, NJ
Is your property eligible for an ADU?
# of Properties
270
Owner-occupied
30%
Zoning districts
12
Avg Home Value
$1,088,420
Median Lot Size
0.17 acres
Avg Income
$135,827
Residential Types:
270 housing units
Single Family
4%
Apts (4+ units)
54%
Condos
41%
Zoning Districts:
5,427 parcels · 12 districts
RA
91%(4,915)
B2
3%(159)
R-5
2%(90)
B1
2%(87)
Other
3%(176)
ADU Rules
What can you build in Dumont Borough, NJ?
Dumont Borough, NJ follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Not permitted
Interior / Attached ADU Size Limits
- –Maximum size is 50% of the building’s total floor area
Max Units
- –1 ADU per single-family lot
Owner Occupancy
- –Owners must reside in either the ADU or primary dwelling.
Parking
- –1 additional off-street space per ADU on the same lot (total minimum 3 spaces for a single-family home with an ADU); no maximum; parking on-site; ADU may not be located in a cellar or a garage.
Rental Restrictions
- –Cannot rent both the ADU and the primary dwelling; one unit must be owner-occupied.
- –After title transfer, continued rental use limited to 1 year from recording date unless a new CO is issued.
- –Upon death or permanent vacation of the required 62+ occupant, continued rental use limited to 1 year from that date; if no qualifying occupant, CO is revoked.
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.
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ADU rules in other New Jersey municipalities
Rules change at the town line. Check the municipality your property is actually in.
Bergen County
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