Love was keen for the sale price to be kept confidential in final negotiations with the council's Panuku Development Auckland, but last night Panuku's project director Clive Fuhr said the sale price would be made public.
Mayor Len Brown was also keen to maintain transparency around the sale for part of Aotea Square, which he called a "critical part of the heart of our city".
The $27.2m sale of another civic space - Queen Elizabeth Square to Precinct Properties for a commercial development - was made public.
The Civic was designed in the mid-1950s and completed in 1966. It was Auckland's first skyscraper and regarded as a fine example of modernist architecture. It has a Category A heritage listing.
Panuku selected Tawera Group from three shortlisted companies to restore the building and develop the surrounding land. The other shortlisted companies were Willis Bond & Co and Rebel Property Group.
Brown said the population in the central city was expected to double in the next 30 years, so accommodation options were essential.
"This scheme is a fantastic way to achieve this. It's all about making the most of the opportunities we have in a growing city," he said.
Tawera has refurbished several older office buildings in the area, including the Hopetoun Residences in Hopetoun St, Park Lane Apartments in Greys Ave and St James Apartments opposite the Auckland Art Gallery.
Auckland Council heritage manager Noel Reardon said it was great to see such an iconic building being restored. The council's heritage team would work closely with the developers to ensure the heritage features were retained and restored, he said.
Love was keen to keep the former Auckland City Council coat of arms on the northern face of the Civic Building.
Building is expected to begin in the middle of next year and take three years.
Early last year, the council moved about 450 staff from the Aotea Square building to the old ASB Tower in Albert St.
