Seminole regulates lot grading and drainage through the Land Development Code in Subpart B and Florida Building Code site provisions, requiring positive drainage away from structures and prohibiting redirection that harms neighboring properties.
Grading and drainage on Seminole parcels must comply with the Land Development Code's site engineering standards and the Florida Building Code's foundation drainage requirements, which call for positive slope away from structures (typically a 6-inch fall in the first 10 feet) and protection of foundation walls. Owners cannot redirect surface water onto adjacent properties or alter sheet flow in ways that cause downstream flooding, a common complaint in Seminole's flatter neighborhoods around 86th Avenue, Ridgewood, and Lake Seminole tributaries. Larger grading projects, lot fill, and seawall reconstruction require engineered drainage plans and may trigger Pinellas County and SWFWMD Environmental Resource Permit review.
Diverting drainage onto neighbors, filling without permits, or grading without engineered plans in Seminole can result in code citations, civil action by affected neighbors, and required restoration at owner expense.
See how other cities in Pinellas County handle grading & drainage.
See how Seminole's grading & drainage rules stack up against other locations.
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