ADUs are allowed in HammontonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Hammonton, NJ
Is your property eligible for an ADU?
# of Properties
641
Owner-occupied
9%
Zoning districts
27
Avg Home Value
$78,009
Median Lot Size
0.92 acres
Avg Income
$93,650
Residential Types:
646 housing units
Single Family
94%
2-3 Family
3%
Apts (4+ units)
3%
Zoning Districts:
6,610 parcels · 27 districts
R-1
21%(1,396)
R-3
16%(1,067)
AP
13%(861)
R-2
13%(842)
Other
37%(2,444)
ADU Rules
What can you build in Hammonton, NJ?
Hammonton, 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: By Right
Detached ADU Size Limits
- –In Downtown and Gateway districts, a detached ADU’s footprint may not exceed the principal building’s footprint.
- –Outside Downtown/Gateway, maximum total area of all accessory structures (including a detached ADU) by zone: FA/AP/AP-CLI 1,500 sq ft; RR 1,000 sq ft; R3 500 sq ft; R1–R2 400 sq ft.
Max Units
- –DT-1/2/3 & GW-1: 1 ADU per lot
Parking
- –RSIS governs all residential parking; no local numeric minimum or maximum; Downtown/Gateway may allow a de minimis RSIS waiver and potential shared/off-site reductions; attached ADUs counted with the principal structure for parking.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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.
Atlantic County