Kiwi Property would continue to manage Northlands on behalf of Mackersy and has also agreed to provide vendor finance of up to $75m to settle the deal, if needed.
"The sale of Northlands is an important step in our capital recycling programme. Proceeds from the transaction will be used to fund the company's exciting mixed-use development pipeline and provide further balance sheet flexibility," Kiwi Property chief executive Clive Mackenzie said.
Mackersy was founded as Mitchell and Mackersy in 1982 in Dunedin and rebranded to its current name in 2020.
According to its website, Mackersy manages 147 syndicate-owned commercial properties and 40 privately owned commercial properties on behalf of more than 2000 investors.
The sale of Northlands is expected to settle on or before 30 November.