

ADUs are allowed in Long Hill TownshipTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Long Hill Township, NJ
Is your property eligible for an ADU?
# of Properties
3,231
Owner-occupied
85%
Zoning districts
26
Avg Home Value
$678,176
Median Lot Size
0.60 acres
Avg Income
$195,226
Residential Types:
3,231 housing units
Other
100%
Zoning Districts:
3,660 parcels · 26 districts
R-3
29%(1,060)
R-2
25%(899)
R-4
20%(747)
C
11%(403)
Other
15%(551)
ADU Rules
What can you build in Long Hill Township, NJ?
Long Hill Township, 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
Detached ADU Size Limits
- –Maximum size of 800 sq ft for a detached accessory apartment
Max Units
- –Single-family lots: 1 accessory apartment within the house per lot; 1 accessory apartment in an accessory building per lot.
- –Multifamily/townhouse: none specified.
Owner Occupancy
- –No owner-occupancy mandate; ADUs require income-restricted occupancy
Parking
- –1 space per ADU (in addition to spaces for the main dwelling); no max; front-yard parking prohibition does not apply to single-family homes, including those with ADUs (parking may be in the front yard).
Rental Restrictions
- –A unit must be occupied by a low- or moderate-income household; deed restriction requires removal if not; annual owner certification required.
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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