By Noah RodriguezJuly 30, 2026 Business Tartine Opens in FiDi as Atherton Reclaims Top Spot as America’s Most Expensive Neighborhood Tartine is set to open a new concept in FiDi, expanding its famed bakery footprint. Meanwhile, Atherton reaffirms its status as the priciest U.S. locale, underscoring soaring real estate values.