PERCH · ADU LEGALITY INDEX · UPDATED 2026-07-17

ADU Laws in Florida — 2026 Guide

Statute summary, size caps, owner-occupancy rules, permit timelines, and a 4-question eligibility quiz. Part of the PERCH ADU Legality Index — one page per state, verified against real statute references and updated as laws change.

4-question eligibility quiz

Q1 · State
What state are you building in?
Q2 · Lot size
How big is the lot?
Q3 · Zoning
What zoning district is the lot in?
Q4 · Property type
Which best describes the build?
Result

Key rules · Florida

Statute summaryFlorida SB 102 (Live Local Act) permits ADUs on commercial-zoned parcels in mixed-use overlays. Miami-Dade and Broward allow accessory units by-right on lots ≥5,000 sqft since 2024 code updates.
ADU allowedConditional — depends on jurisdiction
Size cap (sqft)1,000
Owner-occupancy requiredNo
Permit timeline (days)45-120
Statute citationSB 102 (2023) — Live Local Act
Last verified2026-07-17

Frequently Asked Questions

Are ADUs legal in Florida?
Yes, conditionally — Florida permits ADUs on qualifying lots per SB 102 (2023) — Live Local Act. Larger cities generally lead adoption; smaller municipalities may apply variance or conditional-use permit requirements.
What are the size limits on an ADU in Florida?
Florida permits ADUs up to approximately 1000 square feet per SB 102 (2023) — Live Local Act. Individual municipalities may set lower caps; verify with your city or county planning department before ordering.
Do I need a permit for an ADU in Florida?
Yes — every ADU in Florida requires a building permit issued by the city or county. The permit process typically runs 45-120 days depending on jurisdiction, complexity, and whether discretionary review is triggered.
Can I rent out my ADU in Florida?
Long-term rental is generally permitted in Florida where the ADU itself is legal. Short-term rental (under 30 days) is subject to municipal registration and may require additional permits; check with your local planning department.
Does Florida require owner-occupancy on the primary residence when I have an ADU?
No — Florida does not require owner-occupancy under state statute per SB 102 (2023) — Live Local Act. Local ordinances may still add owner-occupancy requirements in specific cities.
What zoning districts allow ADUs in Florida?
Most Florida municipalities permit ADUs in single-family residential zones (R-1, R-2 equivalent). Florida SB 102 (Live Local Act) permits ADUs on commercial-zoned parcels in mixed-use overlays. Miami-Dade and Broward allow accessory units by-right on lots ≥5,000 sqft since 2024 code updates. Consult your city zoning code for the specific district table.
How long does an ADU permit take in Florida?
Typical ADU permit timelines in Florida run 45-120 days from application to approval. Fast-permitting counties can move in under 30 days; metro-core jurisdictions with discretionary review can extend to 150+ days.
Are there setback requirements for an ADU in Florida?
Yes — most Florida municipalities apply the same setback requirements to ADUs that apply to the primary structure (typically 5-10 feet rear and side, 15-25 feet front). Some cities apply reduced setbacks specifically for detached ADUs. Verify with your city zoning code.
Can I finance an ADU purchase in Florida?
Yes — several financing pathways cover ADU purchases in Florida: Fannie Mae HomeStyle Renovation, FHA 203(k), construction-to-perm loans, HELOC on the primary residence, and cash. Check with modular-friendly lenders like 21st Mortgage, Cascade Financial, and Triad Financial for the Florida-specific product.
What's the difference between an ADU and a JADU in Florida?
The JADU (Junior ADU) category originated in California and is not a distinct legal category in Florida. Most Florida municipalities regulate internal conversions and detached units under a single ADU/accessory apartment definition.

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