

ADUs are allowed in Sayreville BoroughTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Sayreville Borough, NJ
Is your property eligible for an ADU?
# of Properties
13,033
Owner-occupied
84%
Zoning districts
27
Avg Home Value
$174,138
Median Lot Size
0.14 acres
Avg Income
$119,099
Residential Types:
13,033 housing units
Single Family
2%
2-3 Family
92%
Apts (4+ units)
3%
Other
2%
Zoning Districts:
18,217 parcels · 27 districts
R-7
43%(7,888)
R-10
15%(2,706)
R-5
12%(2,265)
R-7(PRD
12%(2,114)
Other
18%(3,244)
ADU Rules
What can you build in Sayreville Borough, NJ?
Sayreville 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: Conditional Use Permit
Interior / Attached ADU Size Limits
- –B-2 zone: Maximum Internal/Attached ADU size is 50% of the principal structure’s gross floor area
Parking
- –No numeric ADU parking min or max; RSIS and Parking Schedule II apply; board may approve fewer spaces where appropriate.
Rental Restrictions
- –Deed-restricted rentals for at least 10 years to income-qualified/very low-income households at affordable rents with a utility allowance; rents and annual increases set by the Borough Administrative Agent; units must be affirmatively marketed and occupied by very low-income households.
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.
Middlesex County
Carteret BoroughCranbury TownshipDunellen BoroughEast Brunswick TownshipEdison TownshipHelmetta BoroughHighland Park BoroughMetuchen BoroughMiddlesex BoroughMilltown BoroughMonroe Township (Middlesex)New BrunswickNorth Brunswick TownshipOld Bridge TownshipPerth AmboyPiscataway TownshipPlainsboro TownshipSouth AmboySouth Brunswick TownshipSouth Plainfield BoroughSouth River BoroughSpotswood BoroughWoodbridge Township