St. Lucie Planners Back 30% Lot Coverage Hike for Suburban Homes

A permitting mistake at a subdivision off Pigway Road may soon reshape how much house St. Lucie County homeowners can put on a suburban lot.

The St. Lucie County Planning and Zoning Commission voted unanimously Tuesday to recommend increasing maximum building coverage from 20% to 30% in residential suburban zoning districts. The change would let aging residents build sprawling single-story homes without sacrificing square footage to a second floor. The amendment now heads to the Board of County Commissioners for final approval.

For a homeowner on a standard 15,000-square-foot lot, the difference is concrete: the buildable footprint grows from 3,000 square feet to 4,500 square feet. That gap matters most to buyers who want the accessibility of a one-story floor plan but expect the living space of a two-story house, staff said.

The amendment does not apply everywhere. Three requirements act as gatekeepers: central utilities, a master stormwater system and private streets. Subdivisions that clear all three benchmarks would qualify. Those that don't stay at 20%. Areas potentially affected include White City, South 25th Street, Jenkins Road, the Copenhaver area and Indian River Estates, public documents indicate.

The origin of the proposal is less tidy than its policy rationale. Senior Planner Thad Crowe told the commission the amendment traces to a permitting error at Noble Oaks Estates on Pigway Road, where three homes were built beyond the current coverage limit. Developer Robert Dudley of Noble Oaks Estates LLC filed the privately-initiated text amendment to bring those homes into compliance.

Commissioner O'Dell questioned whether a single subdivision's construction mistake warranted a countywide code change. Staff pushed back, arguing the amendment applies to any qualifying RS2 property in the county, not just Noble Oaks, and that the county evaluates all privately-initiated petitions on merit through established criteria.

Staff also framed the higher coverage allowance as a reward for developers who invest in superior infrastructure — the same 30% threshold already permitted in higher-density RS3 and RS4 zoning districts. A 2020 amendment that doubled building coverage in agricultural zones from 10% to 20% set a comparable precedent, county records show.

No members of the public spoke during the hearing. If the Board of County Commissioners approves the change, the new 30% limit takes effect countywide for all RS2 subdivisions that meet the three qualifying conditions.

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