The president of Concord Homes, Roger Mankedick, stated in a "Chicago Sun-Times" stated that the student population that was supposed to surround the school never came. The "Chicago Tribune" stated there was a decline in students in the area surrounding the school site. In 1998 the district instead sold the land to Concord Homes for $2.6 million. By 1999 the school district instead built another addition to the Hillside School, funded by the sale of the Westchester land. In 2012 the district had 485 students. That year and in 2011 the district bought projectors and cameras for its classrooms. In 2015 Kevin Suchinski was hired as the superintendent. In addition to most of Hillside, the district also serves sections of Berkeley, Elmhurst, and Westchester. In 1953 the Cook County portion of Elmhurst, then called Yorkfield, had 45 houses. It also serves a community called West Dale Gardens, which was an unincorporated area in 1953. At the time it had 110 houses. In 1971 the school instituted a mental health program affiliated with Northeastern Illinois University. This program used a graduate student in social therapy to work in the school's drug control program, to assist 7th and 8th grade students about to transition to high school, and to assist children with emotional disturbances. This student was interning at the Forrest Hospital in Des Plaines, Illinois. The student used videotapes of classrooms sessions in order to control the behavior of the disturbed children. It was the first program of its type in the area. Students move on to Proviso West High School.