https://chacrealty.com/market Silicon Valley real estate market updates https://chacrealty.com/market/2026-10-silicon-valley-market-update https://chacrealty.com/market/2026-10-silicon-valley-market-update Tue, 27 Oct 2026 00:00:00 GMT Santa Clara County prices were about 4% below a year ago as listings climbed, while San Mateo County single-family prices rose about 8%. Plus the latest weekly numbers and a record assessment roll.