HomePeninsulaCommunity CommunityCover SamTrans Board Approves Acquisition of Large New Headquarters By Pen 360 Press 2023.12.21 0 653 FacebookTwitterPinterestWhatsApp San Mateo County has approved the acquisition of a roughly 180,000-square-foot headquarters in Millbrae, SamTrans officials said the building will be acquired through a lease-purchase agreement at a cost of $126 million. Photo: X @METROmagTweet By Bay City News.