Virginia Beach, VA Landscaping Rules: Rainwater Harvesting (2026)

Virginia Beach actively promotes rainwater harvesting as part of Chesapeake Bay Preservation Act stormwater reduction goals. Rain barrels up to approximately 100 gallons attached to residential downspouts for garden and lawn watering are unregulated and may qualify for city or regional stormwater credit programs. Larger cisterns and any system that plumbs harvested water into a building fall under the Virginia Uniform Statewide Building Code (VUSBC), which incorporates the International Plumbing Code (IPC) Chapter 13 for non-potable rainwater systems. Non-potable indoor uses such as toilet flushing, urinal flushing, and clothes washing are permitted with approved system design, purple pipe or clearly labeled distribution piping, and an air gap or reduced-pressure principle backflow preventer on any makeup connection to the municipal supply. Potable use is technically allowable under Virginia Department of Health guidelines but requires filtration, disinfection, and testing comparable to a private well, and is rarely pursued inside the city because municipal water is readily available. Commercial and institutional projects pursuing LEED or stormwater credit frequently install cisterns of 1,000 to 10,000 gallons and must submit plumbing plans through the Virginia Beach Planning and Permits and Inspections Divisions. Mosquito screens on inlets and overflow routing to pervious surfaces are standard requirements.