ADUs are allowed in Califon BoroughTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Califon Borough, NJ
Is your property eligible for an ADU?
# of Properties
462
Owner-occupied
65%
Zoning districts
8
Avg Home Value
$282,679
Median Lot Size
0.46 acres
Avg Income
$128,194
Residential Types:
462 housing units
Condos
5%
Other
95%
Zoning Districts:
543 parcels · 8 districts
R-3
61%(333)
GB
11%(59)
R-2
9%(51)
R-1
8%(42)
Other
11%(58)
ADU Rules
What can you build in Califon Borough, NJ?
Califon 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: Not permitted
Max Units
- –R-1, R-2, R-3: 1 accessory apartment per lot
- –GB – owner-occupied SF: 1 per lot
- –GB – commercial building: 1+; no maximum stated
Owner Occupancy
- –Host dwelling must remain owner-occupied for as long as ADU exists.
Parking
- –1 space/ADU in commercial buildings; 3 spaces/ADU in residential single-family dwellings; exceptions: direct/unrestricted access; no tandem stacking; residential spaces must fit within impervious-coverage limits
Rental Restrictions
- –Attached ADU must be rented as an affordable unit to a qualified low-income household under a deed restriction for at least 10 years; after that period, it may be rented at market rate without restriction.
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.
Hunterdon County
Alexandria TownshipBethlehem TownshipBloomsbury BoroughClintonDelaware TownshipEast Amwell TownshipFlemington BoroughFranklin Township (Hunterdon)Frenchtown BoroughGlen Gardner BoroughHampton BoroughHigh Bridge BoroughHolland TownshipKingwood TownshipLambertvilleLebanon BoroughMilford BoroughReadington TownshipTewksbury TownshipUnion Township (Hunterdon)West Amwell Township