This story is part of a collaboration between Miami’s Community Newspapers and the Lee Caplin School of Journalism & Media at Florida International University.
In far western Miami-Dade County, an Everglades snail kite flies overhead hunting for apple snails, as the river of grass flows slowly south, and the wind blows without buildings or even many trees to stop it.
Back in 1983, Florida legislators, recognizing decades of Everglades destruction, passed laws to create a line that would limit urban sprawl, protect farms and safeguard wetlands. The idea was to limit westward expansion and steer development to existing sewers and away from water supply.
But now, that borderline is under assault. There are now at least 11 applications to expand it, the most since 2005, according to the Miami Herald.
Developers want to use more than 1,400 acres – more than two square miles – to build warehouses, data centers and even a “green city” with shops and homes. That is about the same acreage as the entire city of South Miami.
“This precedent being set is dangerous ” says Marcelo Balladares, Everglades restoration organizer for the Sierra Club, an activist group that opposes most of the proposed UDB changes, “The UDB needs to be protected.”
One of the most controversial of the present crop of proposals aims to replace farmland and sensitive wetlands with warehouses, call centers, and commercial space. The first proposes to build a tractor warehouse facility about three miles west of Florida International University near US 41.

Kelly Tractor, which is now located in Doral, proposes building a new headquarters on a 246-acre site west of NW 137th Avenue and the Dolphin Expressway. Chris Kelly, owner of the company, wrote in the application that the firm needs to expand to meet a growing demand for supply, repair, and maintenance of hydraulic drills, tractors and other heavy equipment used in constructing infrastructure.
The proposal involves paving over wetlands, which has led to a veto from Miami-Dade Mayor Daniella Levine Cava, necessitating a two-thirds vote to proceed.
The company claimed to need more than 2 million square feet for their office buildings, truck wash and repair bays, fueling stations, and a railroad connection in the preliminary plan. County planning staff and environmental advocacy groups like Hold the Line Coalition and Sierra Club recommended commissioners to vote no.
Staffers suggested the company did not show sufficient need and the land was too sensitive. They added that the area acts as a floodwater buffer and is also home to the endangered Everglades snail kites, which hunt for apple snails in freshwater marshes.
However, after a January commissioners meeting, the board voted yes. Kelly Tractor representatives promised to connect two opposing patches with an on-site stormwater system, and to make up for lost wetlands by purchasing mitigation credits to restore wetlands. Mitigation credits which are currently in critical shortage.
Hold the Line Policy Director Josh Sproat heavily criticized this move and questioned why boundary expansion is even on the table.
“Why do they issue permits for destruction if there’s not enough wetland mitigation credits?” questioned Sproat. “If there aren’t wetlands credits available then why are there developments available?”

Owners of another project called the South Dade Logistics Hub want to create a new tech hub, near the former Homestead Air Reserve Base. Dade Land Advisors LLC recently applied to expand onto 237.1 acres. The industrial project is planned to include logistics centers, warehouse, maintenance and repair, office, light manufacturing, wholesale showrooms and data centers.
The company, owned by David Perez, previously filed a larger 379-acre proposal that was initially approved by the Miami-Dade County Commission in 2022 and vetoed by Mayor Daniella Levine Cava. Although commissioners later overrode the veto, a judge ruled the approval came after the statutory deadline.
They argue the new plan will diversify the local economy, meet rising demand for logistics facilities, technology space for businesses serving the area, and create more jobs.
Marcelo Balladares, of Sierra Club, refutes the claim that the demand makes it okay to develop on sensitive wetlands.
“Just because there’s already development in the area or because it will create short term jobs doesn’t make any of this okay,” said Balladares. “Developers cannot continue to encroach on fragile species habitats just because it will create jobs, especially when Dade staff have time and time again pointed to usable land within the UDB”
Ultimately, as pressure to push past the Urban Development Boundary grows, activists are urging leaders to prioritize long-term environmental sustainability over short-term economic gains, warning that the future of Miami-Dade depends on protecting the Everglades and the fragile ecosystems that sustain it.
Herkoz Incorporated applied for a UDB amendment for land approximating 64.8 acres, proposing a mixed-use development with 1,200 residential units and 90,000 square feet of retail.
Ferro Investment Group LLC has applied for both a map amendment and text amendment to expand the UDB and build the Portofino development, a 1,677 unit community on 163 acres of working farmland.
Limonar Development LLC has submitted an application to develop 308 acres into a mix of single-family homes, townhouses, and garden-style apartments within the Bird Drive Basin. An area that includes jurisdictional wetlands with native vegetation and lies within the East Coast flood buffer zone.
“It’s not easy for everyday residents to be part of the conversation, removing barriers, and providing space to make sure Floridians’ voices are being heard is how we move forward,” said Balladares on how local activists are taking this push towards development.




























