Largo permits and encourages residential rainwater harvesting through rain barrels and cisterns as a water conservation strategy aligned with SWFWMD priorities, though larger systems plumbed into structures may need building or plumbing permits.
The City of Largo aligns its conservation messaging with the Southwest Florida Water Management District, which actively promotes rainwater harvesting as a Florida-Friendly practice. Residents may install simple rain barrels at downspouts without a permit, and harvested water is exempt from the SWFWMD watering-day schedule. Larger cistern systems, pump-fed irrigation tied to potable plumbing, or structures requiring foundations may trigger plumbing or building permits under the Florida Building Code as adopted by Largo. Harvested water cannot be cross-connected to potable supply, and any irrigation system using rainwater must include backflow prevention where applicable.
No penalties for typical rain barrel use; cross-connection violations or unpermitted larger systems can trigger Florida Building Code enforcement and plumbing inspector orders.
Largo, FL
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Side-by-side rule comparisons with other cities in Pinellas County.
See how other cities in Pinellas County handle rainwater harvesting.
See how Largo's rainwater harvesting rules stack up against other locations.
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