ADUs are allowed in Howell TownshipTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Howell Township, NJ
Is your property eligible for an ADU?
# of Properties
3,487
Owner-occupied
60%
Zoning districts
42
Avg Home Value
$450,084
Median Lot Size
0.28 acres
Avg Income
$138,471
Residential Types:
3,487 housing units
Single Family
82%
Apts (4+ units)
15%
Other
3%
Zoning Districts:
25,979 parcels · 42 districts
R-3
31%(8,114)
LC/OS
17%(4,377)
R-4
12%(3,199)
ARE-2
12%(3,135)
Other
28%(7,154)
ADU Rules
What can you build in Howell Township, NJ?
Howell Township, 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 size is the lesser of a percentage of the single-family house or a fixed cap: under 3,000 sq ft: 40% or 1,000 sq ft; 3,000–under 5,000 sq ft: 30% or 1,200 sq ft; 5,000 sq ft or more: 20% or 1,500 sq ft
Detached ADU Size Limits
- –Maximum ADU net floor area tied to house size: if house < 3,000 sf then the lesser of 40% of house area or 1,000 sf; if 3,000–4,999 sf then the lesser of 30% or 1,200 sf; if 5,000 sf or more then the lesser of 20% or 1,500 sf
Owner Occupancy
- –Owner must occupy the primary dwelling when an ADU is established.
Parking
- –No numeric ADU parking minimums or maximums; parking must meet 'adequate off-street parking' for both the principal dwelling and the accessory apartment per §188-106, including adequate turnaround areas to prevent backing into any roadway.
Rental Restrictions
- –Deed-restricted ADU must be rented only to certified low- or moderate-income tenants for at least 10 years; rents capped at affordable levels (≤30% of gross income) and no non-certified tenants.
- –Admin requires a 50/50 low- vs. moderate-income mix and annual owner reporting.
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.
Monmouth County
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