In April 2004, Lincoln Center unveiled the designs by Diller Scofidio + Renfro (who were selected as the project's design architect in 2003) and FXFOWLE for the first phase of its redevelopment project, which included the expansion of the Juilliard building and the redesign of Alice Tully Hall. The plan received final approval and construction began in March 2006. The plan was praised by many architecture critics, but it also received criticism from preservationists who wished to see the original Belluschi building remain intact. A 2005 proposal for landmark status was declined by the Landmarks Preservation Commission. Docomomo International, an organization that works to protect twentieth-century Modernist buildings and sites was a leading organization protesting the renovation. The majority of the controversy has been focused on changes being made to other parts of Lincoln Center, in phase two of the redevelopment project.