SIS's secondary school section has used the premises of the former Wanchai School as its temporary premises from the 2009/2010 academic year to June 2011 and the P5 in 2009/2010 were the first Secondary 1 students there.
The school moved back to their new secondary school campus at Police School Road in the academic year 2011/2012, when the first pre-university cohort commence their IB Diploma Programme studies.