Avondale College to open the new technical subjects building, the Ferguson Building, that had already been in use through the second half of 2005. It is named after the head of the Chemical and Materials Engineering department at the University of Auckland, Professor George Ferguson, who for many years served the college on the board of trustees. The school underwent renovations in 2010–11 which included the building of new science, social science, health, and dance facilities. Former Prime Minister John Key opened the new mathematics and physics buildings, the C- and D-blocks, on 10 August 2011, which was then the biggest school rebuild project in New Zealand history. In March 2014, a new atrium, two new two-story buildings, and new sporting courts were built. Enrollment At the October 2014 Education Review Office (ERO) review of the school, Avondale College had 2484 students, including 140 international students. 52% of students were male and 48% were female. The school is highly multicultural, with at least eleven identifiable ethnic groups – at the ERO review, 21% of students identified as New Zealand European (Pākehā), 15% as Samoan, 12% as Māori, 11% as Indian, 7% as Chinese, 5% as South East Asian, 4% each as African and Tongan, 3% each as Cook Islands Māori and Niuean, 2% each as Fijian and Middle Eastern, and 11% as another ethnicity. The school has a socio-economic decile rating of 4J (low-band decile 4), meaning it draws its school community from areas of moderate to moderately-high socio-economic disadvantage when compared to other New Zealand schools. The current decile came into force in January 2015, after a nationwide review of deciles following the 2013 Census. Previously, Avondale had a decile of 4L (high-band decile 4). Arts and music Avondale College has a school orchestra, big band, jazz combos, choir, chamber orchestra, soul band, rock club, string quartet, Performing Arts Academy in Classical and Jazz music, and other chamber ensembles and bands. The Premier Concert Band was one of the major music bands of the school, travelling to Sydney in June 2006 to participate in the International Music Festival, where they were awarded a Silver Award. The band has also been awarded Bronze, Silver and Gold at numerous other competitions, such as the KBB Music Festival and the National Concert Band Competition. Also participating in Sydney's International Music Festival competition that year was the college's string group Spiccato. This octet