San Antonio actively encourages rainwater harvesting through SAWS (San Antonio Water System) rebate programs. SAWS offers $1.00 per gallon of storage up to $2,000 for residential customers who install at least 500 gallons of cistern capacity. Collected rainwater must be used for non-potable purposes like landscape irrigation. Texas state law (TX Tax Code § 151.355) exempts rainwater harvesting equipment from sales tax.
Rainwater harvesting in San Antonio 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.
San Antonio, TX
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San Antonio, TX
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San Antonio, TX
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Side-by-side rule comparisons with other cities in Bexar County.
See how other cities in Bexar County handle rainwater harvesting.
See how San Antonio's rainwater harvesting rules stack up against other locations.
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