Florida law permits residential rainwater harvesting, and Miami encourages rain barrel use for landscape irrigation to reduce stormwater runoff. No city permit is required for standard residential rain barrel systems used for non-potable outdoor purposes.
Florida Statute 373.228 establishes that rainwater harvesting is permitted statewide, and local governments may not prohibit the installation of rain barrels or rainwater harvesting systems on residential properties. Miami encourages rainwater collection as part of stormwater management and water conservation efforts, particularly given the city's vulnerability to flooding and sea level rise. Standard residential rain barrels (typically 50-100 gallons) do not require permits when used for non-potable landscape irrigation. Larger cistern systems may require building permits if they involve structural modifications or plumbing connections. Collected rainwater must be used for outdoor non-potable purposes such as garden irrigation, car washing, and lawn watering. HOAs cannot prohibit rain barrels under Florida Statute 373.228.
No violations apply to standard residential rain barrel use. HOAs that attempt to prohibit rain barrels violate Florida law. Larger unpermitted cistern systems with structural components may face building code enforcement.
Miami, FL
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Side-by-side rule comparisons with other cities in Miami-Dade County.
See how other cities in Miami-Dade County handle rainwater harvesting.
See how Miami's rainwater harvesting rules stack up against other locations.
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