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County adopts Triangle Farms MXD but narrows floor-area ratio and seeks FDOT/City coordination
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Summary
St. Lucie commissioners adopted a mixed-use future land use (MXD) for the Triangle Farms site with modified sub-area policies that reduce the proposed floor-area ratio and require joint coordination with FDOT and Port St. Lucie on transportation mitigation, after the Treasure Coast Regional Planning Council flagged traffic concerns at Midway Road and I-95.
The St. Lucie County Board of County Commissioners voted to adopt a future land use map amendment that reclassifies the Triangle Farms parcels from AG-5 to Mixed Use Development (MXD) with tailored sub-area policies. The adoption followed staff presentations, regional-review comments and a substantial focus on transportation mitigation.
What the change does: The MXD designation allows a mix of commercial, light industrial and limited residential uses (residential limited to two parcels and constrained by sub-area policies). The MXD will require subsequent rezoning to a planned non-residential development (PNRD) for individual projects and includes protections such as disclosure requirements for buyers, limits on certain outdoor storage and an explicit requirement that development decisions consider regional traffic impacts.
Why it mattered: The Treasure Coast Regional Planning Council and the City of Port St. Lucie flagged concerns about how Triangle Farms could increase trips on Midway Road and the Midway/I-95 interchange and recommended a coordinated multi-jurisdictional transportation study and stronger mitigation requirements. Staff offered options ranging from adoption as transmitted to lower floor-area ratios or time-limited development capacity tied to roadway improvements.
Board action and outcome: After debate, the board approved a version that preserved an MXD designation but narrowed the proposed maximum floor-area ratio and added explicit direction that FDOT and the City of Port St. Lucie participate in mitigation plans. Commissioners also struck data centers from the list of permitted uses and set hotel uses to conditional use status to allow additional scrutiny at rezoning.
Key details from hearing
- Size and location: The request impacts about 88–89 acres near Midway Road, Okeechobee Road and Shin Road; the site lies inside the countys urban services boundary. - Intended uses: The sub-area policies identify likely uses including hotels, restaurants, convenience retail, limited indoor manufacturing, and a conditional-use pathway for other specialty uses. Several outdoor storage uses and automobile/boat sales were identified as prohibited. - Transportation caveats: Staff presented six options for adoption; commissioners chose a set of limitations that included a reduced FAR cap and stronger coordination with FDOT and the City of Port St. Lucie on mitigation. The board emphasized that rezoning to PNRD will require detailed traffic studies and that approvals should ensure transportation capacity or developer-funded mitigation is in place.
What happens next: Projects within the MXD will proceed through the PNRD rezoning and site-plan process, where transportation impacts will be evaluated in detail and mitigation requirements determined.
Speakers quoted or referenced: Irene Sedlmeier (Senior Planner) presented staff analysis; Treasure Coast Regional Planning Council and City of Port St. Lucie comments were cited during the hearing. Commissioner discussion focused on limiting FAR and ensuring intergovernmental coordination.
Ending: The board adopted the MXD with modifications intended to limit intensity until coordinated transportation mitigations are established and to preserve local review at the PNRD stage.

