Pinellas County's Chapter 138 zoning code limits lot coverage and impervious surface ratios through underlying zoning districts and Future Land Use Map categories adopted in the Comprehensive Plan.
Lot coverage and impervious surface ratios in unincorporated Pinellas County are set by the underlying zoning district under Chapter 138 and capped by the Future Land Use Map (FLUM) categories adopted in the Pinellas County Comprehensive Plan. Floor area ratio (FAR) and impervious surface ratio (ISR) maximums are listed alongside density rules for each zoning district. Variances cannot exceed the FLUM-set FAR and ISR caps under Sec. 138-235. Hard surfaces including buildings, driveways, patios, and pool decks count toward the impervious total, while pervious pavers with engineered drainage may receive partial credit. Stormwater management standards in Chapter 130 also apply when lot coverage triggers runoff thresholds.
Exceeding district lot-coverage or ISR caps can require removal of paving, installation of pervious alternatives, daily civil penalties, and denial of permits until site plans demonstrate compliance with Chapter 138 and stormwater rules.
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See how Pinellas County's lot coverage limits rules stack up against other locations.
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