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ADUs are allowed in Altamonte Springs
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Altamonte Springs, FL

Is your property eligible for an ADU?

# of Properties
7,038
Owner-occupied
78%
Zoning districts
40
Avg Home Value
$411,428
Median Lot Size
0.22 acres
Avg Income
$82,151
Residential Types:
7,038 housing units
Single Family
97%
Other
3%
Zoning Districts:
14,825 parcels · 40 districts
R-3
26%(3,900)
R-1AA
21%(3,186)
PUD-RES
14%(2,051)
PUD-MO
9%(1,324)
Other
29%(4,364)

ADU Rules

What can you build in Altamonte Springs, FL?

Altamonte Springs, FL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Max Units

  • R-1AAA/AA/A (single-family): 1 ADU (attached or detached) per dwelling.
  • R-2 (single-family lots): 1 ADU per dwelling.

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.

Seminole County

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