Prestons Public School pupils were in for a surprise on their first day of school: the completion of their $11 million upgrade a year ahead of schedule.
The upgrade, which includes 10 new classrooms, a new multimedia room and an extension of the administration and hall, is one of 24 new and upgraded schools opening this term.
Premier Gladys Berejiklian, Education Minister Sarah Mitchell and Holsworthy MP Melanie Gibbons visited the school on Wednesday to tour the facilities.
Ms Gibbons said the classrooms are "unbelievably impressive", while Ms Berejiklian said the new facilities will "ensure students are receiving the best education."
The state government is investing $6.7 billion over four years to deliver more than 190 new and upgraded schools to support communities across NSW.
Ms Mitchell said the 24 new and upgraded schools represent a $974 million investment in children's education for generations to come.
"Along with our fantastic teachers and staff, these new buildings will be an asset to children who learn in them," she said.