Under a previous developer's ownership, it was a contemporary music performance venue before it was closed in 2007, due to concern over the results of a fire in and adjacent theatre building.
New owner since last week, Relianz Holdings, said it will work with the heritage developer Notable Properties Trust to assess the building's condition and the work needed to get the theatre open -- a stepped process which will include earthquake strengthening.
However, the restoration of St James Theatre is a trade-off for a bigger development.
The Queen St frontage of the old theatre complex is the site for a 39-level tower, costing $175 million, which will have more than 300 apartments when it opens in 2018.
Auckland Mayor Len Brown said Auckland ratepayers would be pleased that a private enterprise project will heal the "festering sore" of the run-down St James.
"This is a wonderful opportunity for the people of Auckland and anyone who has fond recollections of the theatre."