Sydney University has said it will not shut down the Sydney College of the Arts at Callan Park for at least two years and students will continue to study at the historic Kirkbride campus until the end of 2018.
The university has planned to close the art school since 2015.
Its latest proposal is to move the art school to the Old Teacher's College, on the Camperdown campus, by early 2019.
No students were accepted for the bachelor of visual arts this year.
The NTEU is concerned that not taking in new students could affect the financial viability of the art school and its reputation.