Items such as the old school bell and flagpole have been retained by the board of trustees, along with the tongue-and-groove flooring and floor joists from the building.
The flagpole and bell will be resited as part of the redevelopment and some of the flooring will be used in the reception area of the new building.
Waitaki Valley School opened in 2004 on the Kurow Area School site following the merger of the Hakataramea Valley, Otematata and Kurow schools.
The project is still on track for completion before the start of the next school year.