The museum first began discussing a possible expansion in 2001. In 2012, the board commissioned the architectural firm Snøhetta to produce a master plan for future growth. In 2014, the board voted to initiate a museum expansion and, in June 2016, the museum announced its selection of OMA partner Shohei Shigematsu as the architect for the project. Doubleline CEO and Buffalo native Jeffrey Gundlach has pledged $42.5 million to the project, while businesses, foundations, government groups, and individuals have promised matching funds toward a $125 million goal.