Lake County, FL Building Setbacks & Zoning: Lot Coverage Limits (2026)

Rather than a simple building-footprint rule, the LDR uses an Impervious Surface Ratio (3.02.04): a measure of how much of the base site area is covered by material that prevents stormwater infiltration, roofs, roads, sidewalks, and parking lots of asphalt, concrete, compacted sand, limerock, or clay. Table 3.02.06 sets the maximum ISR for each zoning district and applies to residential and nonresidential development alike. Accessory structures add their own size cap: on lots under one acre, an accessory structure may not exceed 80 percent of the dwelling's enclosed living area. Density and floor-area ratios (nonresidential) are also in Table 3.02.06.