Silicon Valley Taxpayers Ass’n v. Santa Clara County Open Space Authority (July 14, 2006, Case No. S136468) ___ Cal.4th ___.
The California Supreme Court declared that Proposition 218 “changed the law governing assessments” in this unanimous decision issued on July 14, 2008, and applied the “new law” to invalidate assessments levied by a special district to fund the acquisition of unspecified “open space.” The opinion lays out the new rules for the establishment, and judicial review, of assessments under the new substantive and procedural standards mandated by Proposition 218. Since these new requirements were added to the State constitution (Articles XIII C and D), the Court explained that the determination of the validity of an assessment “is now a constitutional question” subject to a more rigorous “independent judgment” standard of judicial review. The Court held that Prop. 218 shifted the burden of proof to the assessing agency. Then, applying its “independent judgment,” the Court found the agency had not met its burden of proof and these open space assessments were fatally deficient in at least two respects: (a) the assessments did not meet the new requirements that they be limited to “special benefits” enjoyed by the assessed properties; and (b) the assessments did not meet the new requirements that the amounts assessed to parcels be “proportional” to the special benefits conferred on the assessed properties.