Miami Adopts Largest Known Form-Based Code

After four years of political wrangling, hundreds of public and internal meetings, several revisions, and one determined planning department, consultant team, and Mayor, the City of Miami made urban planning history tonight by adopting the largest known application of a form-based code. In doing so, Miami has catapulted itself to the forefront of those large American cities serious about implementing smart growth. 

2 minute read

October 22, 2009, 8:45 PM PDT

By Mike Lydon


After four years of political wrangling, hundreds of public and internal meetings, several revisions, and one determined planning department, consultant team, and Mayor, the City of Miami made urban planning history tonight by adopting the largest known application of a form-based code. In doing so, Miami has catapulted itself to the forefront of those large American cities serious about implementing smart growth

To be sure, certain elements of the code remained controversial, such as a 35 foot height limit proposed--and adopted-- for a large stretch of the city's most important corridor, yet City Commissioners admirably managed to vote 4-1 in favor of officially replacing the city's outmoded use-base zoning code with a form-based code. Interestingly, Sandy Sorlien, a form-based code expert, also reports that the small town of Jamestown, Rhode Island adopted a form-based code this evening. 

While dozens of lessons may now be learned from the Miami 21 process, a few other large cities are already ready to ditch their own sprawl inducing codes for a more sustainable pattern of growth. Denver, for example, will likely adopt its own comprehensive form-based code in a matter of months. 

Miami 21 is not perfect, but its implementation will allow all practicing planners and advocates of form-based codes alike to study and learn from the successes and failures of Miami's process and eventual results. For that, I hope you can join me in congratulating the City of Miami (and Jamestown) for taking a bold step forward in pursuing a more sustainable 21st century American city. 


Mike Lydon

Mike Lydon is a Principal of The Street Plans Collaborative, an award-winning planning, design, and research-advocacy firm based in Miami, New York City, and San Francisco. Mike is an internationally recognized planner, writer, and advocate for livable cities. His work has appeared in The New York Times, NPR, ABC News, CNN Headline News, City Lab, and Architect Magazine, amongst other publications. Mike collaborated with Andres Duany and Jeff Speck in writing The Smart Growth Manual, published by McGraw-Hill in 2009.

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Aerial view of town of Wailuku in Maui, Hawaii with mountains in background against cloudy sunset sky.

Maui's Vacation Rental Debate Turns Ugly

Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

July 1, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

July 9, 2025 - Diana Ionescu

Map of Haussmann's redesign of Paris in the 1850s through 1870s under Napoleon III.

In Urban Planning, AI Prompting Could be the New Design Thinking

Creativity has long been key to great urban design. What if we see AI as our new creative partner?

June 30, 2025 - Tom Sanchez

View of dense apartment buildings on Seattle waterfront with high-rise buildings in background.

King County Supportive Housing Program Offers Hope for Unhoused Residents

The county is taking a ‘Housing First’ approach that prioritizes getting people into housing, then offering wraparound supportive services.

July 11 - Real Change

Aerial view of suburban housing near Las Vegas, Nevada.

Researchers Use AI to Get Clearer Picture of US Housing

Analysts are using artificial intelligence to supercharge their research by allowing them to comb through data faster. Though these AI tools can be error prone, they save time and housing researchers are optimistic about the future.

July 11 - Shelterforce Magazine

Green bike share bikes parked in a row on a commercial street with outdoor dining and greenery.

Making Shared Micromobility More Inclusive

Cities and shared mobility system operators can do more to include people with disabilities in planning and operations, per a new report.

July 11 - Cities Today