There will not be enough classrooms for the students in the state's public education system in just two years time, according to a scathing NSW Auditor's General's report released on Thursday. The audit of the Department of Education's school building program found bureaucrats failed to properly plan for project costs, leading to budget blowouts on new school building projects. They also failed to adequately anticipate for future population growth in students, which is expected to grow by 180,000 extra pupils by 2039. "School Infrastructure NSW has been focused on delivering existing projects, election commitments and other government announcements," the report said.