Proposition 72

Property Tax: New Construction Exclusion: Rain Water Capture System

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Permits Legislature to allow construction of rain-capture systems, completed on or after January 1, 2019, without requiring property-tax reassessment. Proposition 72 is a legislative constitutional amendment.

Fiscal Impact: Probably minor reduction in annual property tax revenues to local governments.

Semi-Official Election Results:

Yes votes: 3,165,079 [83.24%]

No votes: 637,106 [16.76%]



Proposition 72 will prevent a property tax increase on homeowners who install rainwater recycling systems that benefit our entire state. Eliminating this tax penalty will preserve precious drinking water; help fish and wildlife; lower water bills. People shouldn’t pay a tax penalty for conserving water.

Yes on Prop 72


No argument against Proposition 72 was submitted to the Secretary of State.


Visit Ballotpedia for summary data from recent polls and links to the complete published polls.

Berkeley IGS Polls

Voter Resources

Official California Documents

Official Voter Guide

Prop 72 - Official Voter Guide

Campaign Finance Information

Voter's Edge Campaign Contributions: Total money raised, size of contributions, and top contributors

Power Search: Access and download data from the Secretary of State's CAL-ACCESS System

Nonpartisan Analysis


SCA 9 (Resolution Chapter 1, Statutes of 2018), Glazer. Property tax: new construction exclusion: Rainwater capture system. Legislative Analyst's Office.

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