Contact: Mark Church, Chief Elections Officer & Assessor-County Clerk-RecorderAlternate: Terry Flinn, Special Assistant to the Assessor (Redwood City, CA) San Mateo County Assessor Mark Church today announced the county’s Property Assessment Roll increased year-over-year by $15 billion, or 7.9%, to a record high $206 billion in assessed value, setting a new milestone for the county and breaking the $200 billion barrier for the first time.