Exclusive: Tishman Speyer plans two more highrise residential towers in SoMa – San Francisco Business TimesTishman Speyer, the developer behind San Francisco’s extravagant Infinity and Lumina condo buildings, is proposing a pair of residential towers a block from the Caltrain station in the South of Market neighborhood. Tishman filed an initial application with Planning Department this month for one of the towers at 655 4th St., which is now home to the Creamery coffee shop and Iron Cactus Mexican restaurant.