California Code, Health and Safety Code - HSC § 79780

(a) “Owner” means either (1) the owner of property who occupies a single-family residence or one-half of a duplex constructed on the property, or (2) the owner of common areas within a residential common interest development who owns those common areas for the benefit of the residential homeowners. This subdivision does not include the developer of the common interest development.

(b) “Property” means either (1) real property of five acres or less that is zoned for, and on which has been constructed, a single-family residence, or (2) common areas within a residential common interest development.