Pupils, teachers, board members and guests were wowed as Ngai Tahu mana whenua Kiringaua Cassidy and Paulette Tamati-Elliffe led a single-file procession through every corridor and room in the two-storey building, Mr Cassidy continuously chanting karakia to invoke goodwill and protection.
The building is stage one of a much larger $46 million expansion to cater for forecast roll growth to 1800 pupils.
The school plans to begin using the suites this term.
"Today is a very significant day after many years of waiting," Dr Hall said.
"We have got the first of the new buildings blessed and students will be able to move into the suites. It is a red-letter day."
He was delighted former principals Wayne Bosley and Maurie Jackways could also attend.
The full redevelopment will be officially opened in January next year.
The performance and music suites would contain some of the best technology in terms of sound and lighting.
They also contained a black box theatre, something Wanaka has never had.
Stages two and three will provide more teaching spaces, a library, a new administration black and a new school entrance.
Foundations were laid last week for a whare, which Dr Hall said was an important addition and something the Upper Clutha region had never had.
Dr Hall also said he understood negotiations were going well between the Ministry of Education, the Department of Conservation and the Queenstown Lakes District Council to obtain the site of an obsolete community pool, next door to the school, and build a new school gymnasium.
That project is separate to the $46 million redevelopment.