

ADU rules for Unincorporated Union
Accessory Dwelling Unit (ADU) Rules for Unincorporated Union, FL
Is your property eligible for an ADU?
# of Properties
4,300
Owner-occupied
54%
Zoning districts
13
Avg Home Value
$176,509
Median Lot Size
3.24 acres
Avg Income
$63,483
Residential Types:
4,300 housing units
Single Family
76%
2-3 Family
1%
Other
23%
Zoning Districts:
6,208 parcels · 13 districts
A-4
79%(4,884)
RSF/MH-1
17%(1,038)
A-2
2%(102)
ESA-3
1%(73)
Other
2%(111)
ADU Rules
What can you build in Unincorporated Union, FL?
Unincorporated Union, 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: Not addressed in the local bylaw
Parking
- –2 spaces/ADU; no ADU-specific reductions or transit exemptions
Rental Restrictions
- –Detached ADU (guest house) shall not be rented.
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.
Union County