The Sultan of Brunei is negotiating to sell an office block to Robert Holden's Conrad Properties in the latest in a series of deals sweeping Auckland and Wellington worth about $450 million.
The deal, which is some weeks from settling, could see the ex-BNZ block at 125 Queen converted into apartments.
Real estate agent Graham Wall said the property was under contract.
BNZ left the block, which is now substantially empty, and moved to 80 Queen St, but Foodstuffs Auckland created a New World Metro in its basement.
Chris Dibble, associate research director at Jones Lang LaSalle, said the deal was the latest of many.