A filler school is used to accommodate schools which are undergoing the Programme For Rebuilding and IMproving Existing schools (PRIME) programme, which upgrades schools to improve learning conditions.
The filler school is located at Sembawang New Town, Singapore. Its exact address is 61, Sembawang Drive. The current residents of the school is Naval Base Secondary School, who will reside in this temporary campus until end 2009.
- Riverside Secondary School - 2001-2002
- Chung Cheng High School (Yishun) - 2003-2005
- Yishun Town Secondary School - 2006-2007
- Naval Base Secondary School - 2008-2009