sentences:  The extension to Tate Modern opened in 2016 as The Switch House and, in 2017, was renamed the Blavatnik Building after Anglo-Ukrainian billionaire Sir Leonard Blavatnik, who contributed a "substantial" amount of its £260m cost.The youngest person to be awarded a residency at the Tate is Travis Alabanza.Tate Digital is the name of the department responsible for Tate's website and other public-facing digital projects.