Franklin County lot coverage limits vary by zone. Columbus R-2 single-family allows 40 percent max building coverage. Impervious surface limits typically 60-65 percent including driveways and patios to support stormwater management in Scioto and Olentangy watersheds.
Columbus Zoning §3332.27 limits maximum building coverage to 40 percent in R-2, 50 percent in R-3 apartment districts. Total impervious surface triggers Columbus stormwater review at 60 percent on lots over 10,000 sq ft. Unincorporated Franklin County townships typically allow 25-35 percent building coverage in rural residential. Accessory structures count toward coverage. New construction or additions over 1,000 sq ft of impervious area in Franklin County watershed require stormwater management per Franklin Soil and Water Conservation District review.
Contact your local code enforcement office for specific penalty information.
Franklin County, OH
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See how Franklin County's lot coverage limits rules stack up against other locations.
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