ADU Rules & Zoning in Miami, Florida (2026)
What ADU can you build in your Miami backyard?
Instantly check eligibility for Accessory Dwelling Units (ADUs), like Guest Houses, Garage Conversions, and In-Law Suites.
Miami 2026 ADU Requirements Snapshot
Miami Beach ADU rules — very limited ADU opportunity. Housing stock is predominantly multifamily condos. Rare single-family parcels subject to historic preservation review. Verify all requirements directly with city.
What this means for your lot
- Use the address checker first to verify parcel-specific zoning.
- Confirm setbacks and lot geometry before spending on plans.
- Check short-term rental rules carefully — they vary significantly by city.
Key gotchas
- First confirm your parcel is actually single-family residential — most Miami Beach addresses are condos or multifamily with no ADU pathway
- Historic district rules may prohibit or severely limit the form of any accessory structure
- Miami Beach's STR landscape is complex — do not assume STR income before confirming your specific zone's regulations
Building Limits
- Max Size:1000 sq ft
- Detached Allowed?Yes
- Build Cost Est.:$150,000–$350,000
Rental Rules
No Owner-Occupancy Requirement: Both units can be rented to tenants simultaneously.
Short-Term Rentals: Not prohibited at the city level. State DBPR license required.
Estimated Monthly Income
$2,000–$4,000/month
Based on 2025–2026 Miami market data
Key ADU Restrictions in Miami
- Miami Beach is predominantly condominiums and high-rise multifamily — single-family ADU opportunity applies only to the small number of RS-zoned single-family parcels
- Historic Preservation Board review required for virtually all alterations in Miami Beach — adds months to approval timeline
- STR regulations are complex and neighborhood-specific — some areas have cap limits with waitlists; others have bans
Common Mistakes to Avoid in Miami
- First confirm your parcel is actually single-family residential — most Miami Beach addresses are condos or multifamily with no ADU pathway
- Historic district rules may prohibit or severely limit the form of any accessory structure
- Miami Beach's STR landscape is complex — do not assume STR income before confirming your specific zone's regulations
Eligible Zones in Miami
Miami ADU — Frequently Asked Questions
Can I build an ADU in Miami, Florida?
Miami Beach's housing stock is predominantly condominiums and multifamily. ADU development on single-family parcels is theoretically possible under SB-48 but practically rare given the city's land use pattern.
What is the maximum ADU size in Miami?
Up to 1,000 sq ft under Florida SB-48 if applicable to single-family parcel.
Do I need to be an owner-occupant to build an ADU in Miami?
Miami does not require owner-occupancy. Both the primary home and ADU can be rented to tenants simultaneously.
Can I use my Miami ADU as an Airbnb?
Miami does not prohibit short-term rentals at the city level. You must obtain a Florida DBPR Vacation Rental Dwelling license.
How do I get an ADU permit in Miami?
Miami Beach Planning Department — Historic Preservation Board review required for most properties.
Miami Planning Department
Nearby Cities — ADU Rules
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This page provides general information based on current ordinances and publicly available data as of March 2026. Zoning rules change — verify all requirements with your local planning department before making financial commitments.