[9] In contrast to the limited-admission King College Prep that was opened nearby at the same time, Dyett was deliberately starved of resources, suffering "over a decade of CPS disinvestment and destabilization.

[10] The closure took place as a teach-out, with the school closing after the students who were freshmen in 2011–2012 had graduated.

During this phaseout period, members of the school community protested continuously, with several Dyett supporters being arrested for refusing to leave Chicago City Hall and 36 students filing a federal civil rights complaint against CPS.

"[12] CPS nonetheless closed the school in the spring of 2015, after graduating a final class of 12 students.

Dyett competes in the Chicago Public League (CPL) and was a member of Illinois High School Association (IHSA).