Competing restaurants Euro and Soul Bar and Bistro will soon be under the same management.
Nourish Group, which owns Euro, has purchased Soul for an undisclosed sum, with Nourish set to take over on March 1.
Founder of Soul, Judith Tabron, who is staying on for 90 days after the official handover date, said she was leaving the restaurant in good hands.
"I'm very proud of what I've achieved at Soul, but the time seems right to pass on the mantle, and I'm confident that it has found the best possible home with the Nourish Group."
Soul will join a stable of Nourish businesses including Auckland's Euro and Jervois Steak House, and Wellington's Shed 5 and Pravda Cafe & Grill.