

ADUs are allowed in Netcong BoroughTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Netcong Borough, NJ
Is your property eligible for an ADU?
# of Properties
942
Owner-occupied
72%
Zoning districts
12
Avg Home Value
$317,347
Median Lot Size
0.18 acres
Avg Income
$101,044
Residential Types:
942 housing units
Other
100%
Zoning Districts:
1,020 parcels · 12 districts
R-2
58%(593)
B-C
12%(125)
R-1
11%(109)
B
6%(62)
Other
13%(131)
ADU Rules
What can you build in Netcong Borough, NJ?
Netcong 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 equal to the gross floor area of the existing principal dwelling.
Detached ADU Size Limits
- –Maximum ADU size cannot exceed the gross floor area of the existing principal dwelling (B-C Zone accessory apartment program).
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –No ADU-specific min/max; per-unit duplex parking: 1.5 (2BR), 2.0 (3BR), 2.5 (4BR), 3.0 (5BR); rounding applies; ADU program requires showing spaces on site sketch but no separate numeric standard.
Rental Restrictions
- –Must rent to income-qualified households at initial occupancy and for at least 10 years; rents must be affordable per COAH/UHAC with a deed restriction on rental/sale.
- –Administrative agent sets rents and eligibility, maintains waiting list, files deed restrictions, and secures COs; written lease required; fees capped at 5% of monthly rent.
- –Same restrictions apply to internal/attached ADUs.
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.
Morris County
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