ADUs are allowed in High Bridge BoroughTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for High Bridge Borough, NJ
Is your property eligible for an ADU?
# of Properties
1,481
Owner-occupied
79%
Zoning districts
11
Avg Home Value
$328,339
Median Lot Size
0.28 acres
Avg Income
$116,206
Residential Types:
1,481 housing units
Single Family
1%
Condos
5%
Other
94%
Zoning Districts:
1,576 parcels · 11 districts
R-4
43%(675)
R-3
37%(577)
R-1
5%(86)
R-2
5%(82)
Other
10%(156)
ADU Rules
What can you build in High Bridge Borough, NJ?
High Bridge Borough, NJ follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum internal/attached ADU size is 35% of the principal dwelling’s total floor area.
Detached ADU Size Limits
- –Maximum detached ADU size is 35% of the principal dwelling’s total floor area.
Max Units
- –1 ADU per single-family lot
Owner Occupancy
- –Owner must reside on the property year-round
Parking
- –ADU parking governed by RSIS; no ADU-specific min/max. LUO may allow fewer spaces if space is reserved to add them later (§145-306C(1)(a)); ADUs allowed in single-family or accessory buildings with conditions.
Rental Restrictions
- –ADU rentals must meet income limits (no more than 52% of median income) with a deed restriction of at least 10 years; a written lease is required, no extra fees beyond approved rent, application fees capped at 5% of monthly rent, and affordability controls survive sublease/sale/foreclosure.
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 BoroughCalifon BoroughClintonDelaware TownshipEast Amwell TownshipFlemington BoroughFranklin Township (Hunterdon)Frenchtown BoroughGlen Gardner BoroughHampton BoroughHolland TownshipKingwood TownshipLambertvilleLebanon BoroughMilford BoroughReadington TownshipTewksbury TownshipUnion Township (Hunterdon)West Amwell Township