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ADUs are allowed in Stillwater Township
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Accessory Dwelling Unit (ADU) Rules for Stillwater Township, NJ

Is your property eligible for an ADU?

# of Properties
2,212
Owner-occupied
59%
Zoning districts
10
Avg Home Value
$179,665
Median Lot Size
0.86 acres
Avg Income
$114,733
Residential Types:
2,212 housing units
Single Family
24%
2-3 Family
75%
Other
1%
Zoning Districts:
2,650 parcels · 10 districts
R-7.5
45%(1,182)
R-5
26%(695)
R-30
17%(454)
RC
6%(163)
Other
6%(156)

ADU Rules

What can you build in Stillwater Township, NJ?

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

Owner Occupancy

  • Owner must occupy the property; ADU occupant must be a family member.

Parking

  • 2 spaces per dwelling unit minimum; no ADU-specific rate or waiver; accessory housing requires adequate on-site parking; RSIS applies

Rental Restrictions

  • Detached ADUs: occupant must be a family member; unit cannot be rented to the public; must be owned by a nonprofit or governmental entity. Attached ADUs: only relatives may inhabit; no other occupants (two persons + a caretaker).

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.

Sussex County

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