ADUs are allowed in Marco IslandTypes:Detached
Types:Detached
Accessory Dwelling Unit (ADU) Rules for Marco Island, FL
Is your property eligible for an ADU?
# of Properties
7,737
Owner-occupied
56%
Zoning districts
23
Avg Home Value
$1,689,256
Median Lot Size
0.25 acres
Avg Income
$137,347
Residential Types:
7,737 housing units
Single Family
98%
2-3 Family
1%
Other
1%
Zoning Districts:
22,782 parcels · 23 districts
RSF-4
23%(5,306)
RMF-6
20%(4,550)
RSF-3
13%(2,989)
RMF-16
11%(2,564)
Other
32%(7,373)
ADU Rules
What can you build in Marco Island, FL?
Marco Island, FL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Conditional Use Permit
Owner Occupancy
- –No owner-occupancy requirement; ADU for nonrental guests
Parking
- –2 per unit; ADUs not expressly listed; staff may apply the guesthouse/caretaker's residence standard (no explicit max).
Rental Restrictions
- –Renting is prohibited for detached and attached ADUs; noncommercial (nonrental) use is required, and leasing or renting constitutes a violation.
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.
Collier County