ADUs are allowed in MiamiTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Miami, FL
Is your property eligible for an ADU?
# of Properties
124,538
Owner-occupied
44%
Zoning districts
66
Avg Home Value
$452,122
Median Lot Size
0.30 acres
Avg Income
$100,619
Residential Types:
133,194 housing units
Single Family
26%
2-3 Family
9%
Apts (4+ units)
13%
Condos
52%
Zoning Districts:
143,468 parcels · 66 districts
T3-R
15%(21,929)
T3-O
14%(20,081)
T6-48A-O
6%(9,063)
T6-8-O
6%(9,033)
Other
58%(83,362)
ADU Rules
What can you build in Miami, FL?
Miami, 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 is the lesser of 500 sq ft or 10% of lot area
Detached ADU Size Limits
- –Maximum ADU size is the lesser of 800 sq ft and 10% of the lot area.
Owner Occupancy
- –Owner occupancy required; ADU rental requires Homestead status.
Parking
- –1 space/ADU; waived in TOD or Transit Corridor
Rental Restrictions
- –ADU rental allowed only with proof of Homestead status.
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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ADU rules in other Florida municipalities
Rules change at the town line. Check the municipality your property is actually in.
Miami-Dade County
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