ADUs are allowed in NewtonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Newton, NJ
Is your property eligible for an ADU?
# of Properties
2,245
Owner-occupied
83%
Zoning districts
17
Avg Home Value
$492,687
Median Lot Size
0.23 acres
Avg Income
$86,289
Residential Types:
2,245 housing units
Single Family
8%
2-3 Family
90%
Other
2%
Zoning Districts:
2,552 parcels · 17 districts
T-3
61%(1,544)
T-5
18%(457)
T-4
7%(175)
T-6
4%(110)
Other
10%(266)
ADU Rules
What can you build in Newton, NJ?
Newton, 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 800 sq ft for an accessory apartment
Detached ADU Size Limits
- –Maximum size of 800 sq ft for a detached accessory dwelling unit townwide.
Parking
- –Min 1 space/ADU (T-5); 2.0 (T-2/T-3); 1.5 (T-4); special districts use T-4; RSIS applies for 3+ bedrooms; max none; shared parking allowed within 250 ft (up to 75% of spaces may be shared).
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.
Sussex County
Andover BoroughAndover TownshipBranchville BoroughByram TownshipFrankford TownshipFredon TownshipGreen TownshipHamburg BoroughHardyston TownshipHopatcong BoroughLafayette TownshipMontague TownshipOgdensburg BoroughSandyston TownshipSparta TownshipStanhope BoroughStillwater TownshipSussex BoroughVernon TownshipWantage Township