ADU Rules in Miami, FL — 2026 Guide
Check if your Miami property qualifies for an ADU in 20 seconds
Miami ADU Rules at a Glance
Miami is considered ADU-friendly. Here are the key regulations.
- FL SB 1718 (2023) requires all Florida counties and cities to allow ADUs in single-family zones.
- Miami-Dade allows ADUs up to 1,000 sqft or 50% of primary home area.
- ADUs cannot be sold separately from the primary property.
- Flood zone elevation requirements apply to ADUs in many Miami neighborhoods.
What ReadyPermit Checks for Miami Properties
Enter any Miami address and get an instant ADU feasibility analysis covering:
Zoning Compliance
Verify your Miami lot is zoned for ADU construction under current FL and local rules.
Setbacks & Coverage
Check required setbacks, lot coverage limits, and height restrictions for your specific parcel.
ADU Size Limits
Calculate the maximum ADU square footage allowed based on your lot size and primary dwelling.
Permit Requirements
Understand what permits and approvals Miami requires before you can break ground.
Flood & Hazard Zones
Identify if your property falls in a flood zone, fire zone, or other hazard overlay.
Lot & Parcel Data
Pull parcel boundaries, lot dimensions, and existing structures from county records.
Check Your Miami Property Free
Enter your address below. In under 20 seconds you will know if your Miami lot qualifies for an ADU — no phone calls, no waiting.
No credit card required. Instant results.