ADUs are allowed in MariannaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Marianna, FL
Is your property eligible for an ADU?
# of Properties
1,966
Owner-occupied
83%
Zoning districts
16
Avg Home Value
$109,720
Median Lot Size
0.32 acres
Avg Income
$47,734
Residential Types:
1,966 housing units
Single Family
91%
Other
9%
Zoning Districts:
3,934 parcels · 16 districts
R3
32%(1,260)
MU
16%(628)
R2
14%(535)
COM
13%(492)
Other
26%(1,019)
ADU Rules
What can you build in Marianna, FL?
Marianna, FL 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: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 25% of the principal structure’s square footage
Detached ADU Size Limits
- –Maximum size is 25% of the square footage of the principal structure on the residential lot.
Max Units
- –Single-family: 1 ADU per lot (internal/attached/detached)
ADU State Law
What can you build in Florida?
- –Florida does not have a statewide ADU mandate. There is no state-level requirement for cities or counties to allow ADUs.
- –ADUs in Florida are regulated entirely at the local level. Some jurisdictions allow ADUs broadly, others allow them with strict conditions, and some prohibit them altogether.
- –Florida Statute 163.31771 is optional. It allows local governments to adopt ADU ordinances for affordable housing, but it does not require any jurisdiction to allow ADUs, and local governments may adopt ADU rules outside of this statute.
- –County and city rules may differ. In unincorporated areas, county zoning controls whether ADUs are allowed; within city limits, municipal zoning codes apply.
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 Florida municipalities
Rules change at the town line. Check the municipality your property is actually in.
Jackson County