Rainwater laws / Tennessee
Is it legal to collect rainwater in Tennessee?
Checked at Tennessee's own statutes and agencies, November 2026. Not legal advice.
No state law found
We found no Tennessee law about rooftop rain collection.
What we checked
We searched capitol.tn.gov and tn.gov for anything on collecting rain from a roof and found nothing. That means no state rule we could find limits a rain barrel, not that none exists.
Before you buy a big tank
State law is only one layer. Cities and counties can set their own rules, especially for tanks plumbed into the house, and an HOA can limit where a barrel sits. Drinking rainwater needs treatment everywhere. For a barrel or two on a downspout for the garden, the state rule above is usually the one that matters.
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