Work started on National Junior College's campus in September 1967. Located at the junction of Linden Road and Dunearn Road, the campus was completed in less than 15 months, at a cost of SGD $1.6 million. The original campus featured an audio-visual lab, 10 science laboratories, a library, two lecture theatres, 30 classrooms, nine tutorial rooms, an assembly hall, a canteen, an administrative block with other activity rooms. National Junior College used this campus until 1997, when it shifted to its present location at Hillcrest Road.