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ADUs are allowed in West Milford Township
Types:Internal

Accessory Dwelling Unit (ADU) Rules for West Milford Township, NJ

Is your property eligible for an ADU?

# of Properties
11,749
Owner-occupied
70%
Zoning districts
23
Avg Home Value
$238,616
Median Lot Size
0.34 acres
Avg Income
$130,007
Residential Types:
11,749 housing units
Single Family
9%
2-3 Family
85%
Apts (4+ units)
2%
Condos
4%
Other
1%
Zoning Districts:
12,113 parcels · 23 districts
LR
44%(5,384)
R-4
15%(1,812)
R-2
11%(1,372)
R-1
9%(1,110)
Other
20%(2,435)

ADU Rules

What can you build in West Milford Township, NJ?

West Milford Township, NJ follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size is the lesser of 600 sq ft or 30% of the existing dwelling area for an internal/attached accessory apartment

Max Units

  • Single-family: 1 internal ADU per lot (no detached).
  • Duplex & multifamily: none specified.
  • JADUs: none specified.

Owner Occupancy

  • Accessory apartments require owner-occupancy of the primary residence.

Parking

  • 2 spaces/ADU; no max. Parking must not block access; no parking in the driveway within 20 feet of the street line; on-site turnaround 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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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.

Passaic County