About 200 people gathered at Woodford House last night to celebrate the opening of the Dame Kate Harcourt Performing Arts Centre.
After becoming aware that some of the buildings required strengthening to meet the new seismic standards, the school used it as an opportunity to develop spaces better equipped for modern learning.
With this the old arts block, Haddington, was demolished in 2015 with the blessing of the Casely family and this new performing arts centre has since taken its place.
The facility spans three levels and includes a drama and dance studio with sprung floors, a music rehearsal space, three classrooms, five tutorial rooms, acoustics throughout the teaching spaces, costume and prop storage facilities and a school maintenance workshop.
Woodford House communications manager Chloe Johnson said it was a space that would provide the girls with excellent teaching facilities rather than being a space for public performances.