Texas state law explicitly encourages rainwater harvesting and prohibits local governments from banning the practice. Dallas residents using non-potable water (rainwater, well water, or greywater) for irrigation are exempt from the city's twice-weekly watering schedule. If a permanently installed rainwater collection system is used, a building permit is required and a small purple sign indicating non-potable water use must be displayed.
Rainwater harvesting in Dallas is generally permitted for residential use including garden irrigation, lawn watering, and non-potable household purposes. Texas does not impose significant state-level restrictions on residential collection. Rain barrels and cisterns may be installed without special permits in most cases, though large systems may trigger building or plumbing permits. HOAs may have restrictions on visible rain barrel placement. Potable use of collected rainwater requires treatment systems that meet health department standards. Some cities offer rain barrel rebate programs.
No penalties for standard residential collection. Large cistern installations without building permit: standard building code violation $100 to $500.
Dallas, TX
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Side-by-side rule comparisons with other cities in Dallas County.
See how other cities in Dallas County handle rainwater harvesting.
See how Dallas's rainwater harvesting rules stack up against other locations.
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