Miami 21 amendment intelligence — source-linked, human-reviewed, always traceable.
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Explore Lineages →Five ordinances (2018–2026) built Miami's Transfer of Development Density program from a single provision into the city's primary housing density mechanism.
About CodeLine
CodeLine is an independent legislative intelligence platform. The Miami Edition tracks Miami 21 zoning amendments — auto-synced from public City sources, human-reviewed, and linked to original legislative records. Not affiliated with the City of Miami or Miami-Dade County. Not legal advice.
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Policy Lineage
How Miami 21 legislation evolves across policy families and generations.
Policy Families
Ordinance Chains
TDD language first appeared in Ord. 13787 (2018). Ord. 14083 (2022) formalized the Affordable Housing TDD Program. Ord. 14328 (2024) expanded to Opportunity Zones. Ord. 14394 (2025) paired with Workforce Housing. Ord. 14470 (2026) raised density bonus to 100%.
Ord. 13265 (2010) created §3.15, the city's core density bonus mechanism. Subsequent ordinances expanded eligibility and added the §3.15.3 setback waiver. This foundational layer underlies every subsequent housing density program in Miami 21.
Established in 2016, this branch created and progressively expanded the Workforce Housing Special Benefit Program through updated AMI thresholds and attainable mixed-income requirements.
Method
Building Legislative Intelligence — a transparent methodology for tracking, connecting, and explaining changes to Miami 21.
Why CodeLine Exists
Miami 21 evolves through ordinances that are introduced, revised, and adopted over time. Those changes accumulate, making it difficult to understand how today's regulations relate to previous amendments.
Official documents are public, but they are dispersed across multiple systems and are rarely connected into a single legislative history.
CodeLine Miami organizes that history. It connects ordinances over time, explains each amendment in plain language, and links every record directly to its original source.
Methodology
Every amendment follows the same workflow:
AI may assist with drafting summaries, but every published record is reviewed and approved by an editor before it appears publicly. Confidence levels in the Lineage tab reflect the certainty of each genealogical connection.
Editorial Principles
- Source-linked to official records
- Human-reviewed before publication
- Plain English without legal jargon
- Politically neutral — no policy recommendations
- Not legal advice
Data Sources
- IQM2 Legislative Portal
- OrdinanceWatch
- Florida Public Notices
- Miami 21 Official Amendment List
- Gridics Amendment Records
Each amendment links directly to the originating source whenever available.
Scope
CodeLine focuses on City of Miami legislative amendments to Miami 21. It does not track:
- State legislation
- County ordinances
- Administrative decisions
- Building permits or development applications
...unless they directly modify Miami 21 as enacted through a City ordinance.
Live Local Act
The Florida Live Local Act can supersede portions of Miami 21 for qualifying projects near transit. Because it is state legislation — not a City of Miami ordinance — it is referenced only where necessary to explain interactions with Miami 21.
It is not maintained as part of the amendment database. For any project in a transit corridor, verify current Live Local applicability against the state statute directly.