Proposition 13 is a Constitutional amendment that limits the valuation and taxation of property in California. It was passed by the voters in June, 1978. Under Proposition 13, real property is reappraised only when a change in ownership occurs, or when new construction takes place. A change in ownership occurs when there is a transfer of property, whether the transfer is a purchase, a gift, an inheritance, a foreclosure, the addition or deletion of an owner, or any other means. New construction is any improvement to property that is not normal maintenance.
Proposition 13 restricts both the tax rate and the rate of increase in valuation of real property as follows: