On 22 April 2002, the Vice-President of the IPPAR issued a dispatch to begin the administrative process for the eventual classification of the parque, main building, Modern Art Centre and gardens as national heritage. Work on remodeling the park began in 2003, following the plan established by Gonçalo Ribeiro Telles. On 7 June 2006, there was a dispatch by the Minister of Culture supporting the classification of the buildings. On 23 September 2008, the work on improving the interior air quality and energy conservation resulted in the building being classified as a "Edifício Saudável" ("Healthy Building").