

ADUs are allowed in HammondTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Hammond, LA
Is your property eligible for an ADU?
# of Parcels
8,828
Zoning districts
26
Zoning Districts:
8,730 parcels · 26 districts
RM-2
24%(2,132)
RS-3
19%(1,627)
RS-11
18%(1,559)
C-H
6%(541)
Other
33%(2,871)
ADU Rules
What can you build in Hammond, LA?
Hammond, LA 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
- –Maximum size of an internal/attached in-home apartment is 50% of the primary dwelling’s floor area.
Detached ADU Size Limits
- –Maximum detached ADU size of 900 sq ft
- –Maximum detached ADU size of 20% of the primary residential structure’s square footage
Max Units
- –Attached ADU: 1 per lot (RS-11, RS-11.A, RS-8, RS-5, RS-3, RM-2).
Rental Restrictions
- –Renting the ADU is prohibited; short-term/vacation rentals are not allowed.
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 Louisiana municipalities
Rules change at the town line. Check the municipality your property is actually in.
Tangipahoa County