In 2009, in response to significant growth in the museum's audiences and collections since the opening of the 1995 building, SFMOMA announced plans to expand. A shortlist released in May 2010 included four architecture firms officially under consideration for the project: Adjaye Associates; Diller Scofidio + Renfro; Foster + Partners; and Snøhetta.[30] In July 2010 the museum selected Norwegian architecture firm Snøhetta to design the expansion.[31]