Warner Music occupied the seventh floor of the building for many years before moving to Ponsonby Rd eight years ago.
Marketing director Lisa Cotter said the building had served them well, with 360-degree views providing the perfect backdrop for the countless parties and events.
"We would listen to demos and host events where we would invite musicians," Cotter said.
"Shihad, The Feelers, Fur Patrol, Annie Crummer and Exponents were often up in the offices and internationals acts like Quincy Jones and Ice T visited as well."
Quinton said Hopetoun Residences developer Tawera Group would keep the main structure of the building but add balconies and new glass for a modern look.
"People love the design of the new building and we have sold at least 30 in the million-dollar-plus sales so it shows it is definitely what the market wanted."