Port St. Lucie, FL Building Setbacks & Zoning: Lot Coverage Limits (2026)

071 governs the Estate Residential (RE) district, the city's large-lot single-family zone, and subsection (F) caps building coverage at 30 percent of the lot. That cap sits alongside a 20,000-square-foot minimum lot size and 100-foot minimum width in subsection (E). 060(F), holds single-family dwellings to a 10-percent building coverage cap but allows other permitted or special-exception uses up to 30 percent, provided total impervious surface on that parcel, including driveways and parking, never exceeds 80 percent. 'Building coverage' measures only the building footprint, while the GU impervious ceiling sweeps in every hard surface.

Enforcement runs through the site plan and building permit process: the City reviews the proposed footprint against the applicable district's coverage limit in subsection (F) before issuing a building permit, and Site Plan Review Committee approval is required for any use beyond a single-family dwelling under the site plan review sections of Chapter 158. Because RE lots often carry a private well, septic system, or large accessory structures such as barns or guest houses, keeping impervious surfaces well under the 30-percent ceiling also supports the drainage and stormwater requirements found elsewhere in the subdivision code.