Euless, TX Landscaping Rules: Rainwater Harvesting (2026)

Texas Property Code 202.007 prohibits homeowner associations from banning rain barrels or rainwater-harvesting systems outright, though HOAs may impose reasonable aesthetic rules such as location out of front view and color matching. In Euless, installation of above-ground rain barrels, polytanks, and cisterns used exclusively for outdoor irrigation is generally exempt from a building permit when under 5,000 gallons and supported on grade or a simple pad. Larger tanks, tanks on raised platforms, or connections that tie harvested water into the potable plumbing inside a home require a plumbing permit and must meet the American Society of Plumbing Engineers Rainwater Catchment Design and Installation Standard (ARCSA/ASPE/ANSI 63) along with backflow prevention (reduced-pressure principle backflow preventer) if cross-connected to the city water supply. Texas Tax Code 151.355 makes rainwater-harvesting equipment exempt from state sales tax, and the city and Trinity River Authority periodically offer rain-barrel rebate programs. Rainwater used for irrigation needs no treatment. Indoor non-potable use (toilet flushing, laundry) and potable use require disinfection systems approved by the Texas Commission on Environmental Quality Rule 290.44. Overflow from tanks must drain away from foundations and neighbor property.