Miami, FL Landscaping Rules: Rainwater Harvesting (2026)
Key Facts
- State Law
- F.S. 373.228 permits harvesting
- Permit Required
- No, for standard rain barrels
- HOA Restrictions
- Cannot prohibit rain barrels
- Use
- Non-potable outdoor only
Summary
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.
F.S. 373.228 Landscape irrigation design. — (1) The Legislature finds that multiple areas throughout the state have been identified by water management districts as water resource caution areas, which indicates that in the near future water demand in those areas will exceed the current available water supply and that conservation is one of the mechanisms by which future water demand will be met. (2) The Legislature finds that landscape irrigation comprises a significant portion of water use and that current typical landscape irrigation systems and Florida-friendly landscaping designs offer significant potential water conservation benefits. (3) It is the intent of the Legislature to improve landscape irrigation water use efficiency by ensuring that landscape irrigation systems meet or exceed minimum design criteria. (4) The water management districts shall work with the Florida Nursery, Growers and Landscape Association, the Florida Native Plant Society, the Florida Chapter of the American Society of Landscape Architects, the Florida Irrigation Society, the Department of Agriculture and Consumer Services, the Institute of Food and Agricultural Sciences, the Department of Environmental Protection, the Department of Transportation, the Florida League of Cities, the Florida Association of Counties, and the Florida Association of Community Developers to develop landscape irrigation and Florida-friendly landscaping design standards for new construction which incorporate a landscape irrigation system and develop scientifically based model guidelines for urban, commercial, and residential landscape irrigation, including drip irrigation, for plants, trees, sod, and other landscaping. (5) In evaluating water use applications from public water suppliers, water management districts shall consider whether the applicable local government has adopted ordinances for landscaping and irrigation systems consistent with the Florida-friendly landscaping provisions of s. 373.185.
Full Breakdown
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.
Violations & Fines
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.
Frequently Asked Questions
Can I collect rainwater at my Miami home?
Can my Miami HOA ban rain barrels?
Can I use harvested rainwater for drinking in Miami?
Sources & Official References
Other rules in Miami
Florida rules heatmap·Compare Miami to another location·View the Florida landscaping rules overview
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Rainwater Harvesting in Nearby Cities
How other cities in Miami-Dade County handle rainwater harvesting.