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ADUs are allowed in New Brunswick
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Accessory Dwelling Unit (ADU) Rules for New Brunswick, NJ

Is your property eligible for an ADU?

# of Properties
7,048
Owner-occupied
41%
Zoning districts
30
Avg Home Value
$738,921
Median Lot Size
0.08 acres
Avg Income
$72,207
Residential Types:
7,048 housing units
Single Family
4%
2-3 Family
84%
Apts (4+ units)
9%
Condos
3%
Zoning Districts:
8,050 parcels · 30 districts
R-5A
46%(3,708)
R-6
12%(926)
C-4
6%(463)
R-3
5%(440)
Other
31%(2,513)

ADU Rules

What can you build in New Brunswick, NJ?

New Brunswick, NJ follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

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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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.

Middlesex County

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