Auckland Council has begun a major overhaul which could bring change on a bigger scale than the amalgamation 18 months ago.
The project includes new downtown headquarters, providing more services online and cutting tens of millions of dollars in costs.
Council chief executive Doug McKay says the three- to five-year project targets efficiency and improving the way the council serves customers.
One physical change involves shifting from offices in the central city into a new headquarters that can house five times the number of staff.
Mr McKay says it is too early to say how many jobs may be lost in the changes.
The number of staff in Auckland local bodies fell from 10,500 to 8500 leading up to amalgamation.