Miami, FL Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- Zone
- T3 Sub-Urban Transect Zone
- First-floor lot coverage
- 50% max of Lot Area
- Second-floor lot coverage
- 30% max (T3-R & T3-L only)
- Minimum green space
- 25% of Lot Area
- Administrative relief
- 10% Waiver available
Summary
In Miami's T3 Sub-Urban Transect Zone, covering most single-family and duplex lots, buildings can cover up to 50% of the lot on the first floor, with second-story coverage capped at 30% in T3-R and T3-L zones.
Lot Coverage by Building shall not exceed that shown in Illustration 5.3. ... c. Lot Coverage 50% max. first floor 30% max. second floor (T3-R & T3-L only)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 23 | Ordinance 11000 (Previous Zoning Code): Supplement 22 | Miami 21 (Zoning Code): ?).
Full Breakdown
Miami 21, the city's form-based zoning code, sets lot coverage as a percentage of Lot Area rather than a flat setback rule. In the T3 Sub-Urban Transect Zone, the code's baseline single-family and duplex zone, Illustration 5.3 caps building footprint at 50% of the lot on the first floor, with second-story coverage further limited to 30% of the lot in the T3-R and T3-L sub-zones. Higher-intensity Transect Zones (T4 through T6 and the urban core) permit substantially more coverage, up to 90% or more through the code's Flexible Lot Coverage Program. A ten percent administrative Waiver is also available for Lot Coverage standards in a T3 Transect Zone.
Violations & Fines
Exceeding the platted Lot Coverage triggers a stop-work order from the Office of Zoning, and the owner must obtain a Waiver or Variance or remove the excess building area before work can resume.
Frequently Asked Questions
Does the 50% lot coverage limit apply to all Miami zones?
Can I exceed the 30% second-floor coverage cap in a T3-R lot?
Sources & Official References
Other rules in Miami
Florida rules heatmap·Compare Miami to another location·View the Florida building setbacks & zoning overview
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Lot Coverage Limits in Nearby Cities
How other cities in Miami-Dade County handle lot coverage limits.