The Government has given the green light for a new privately-run prison in South Auckland, to be run by the same company that manages Mt Eden Prison and was recently fined $150,000 for an escaped prisoner.
Wiri Prison will be a 960-bed prison and will open in 2015.
The consortium to build and run the prison will include Serco, which manages Mt Eden Prison.
For Wiri, Serco will face stiff financial penalties if it does not meet rehabilitation targets - which will be set at 10 per cent lower than public prisons.
The Corrections Department has a target to reduce re-offending by 10 per cent. If that is achieved, Wiri would have to achieve a rate 20 below the current rates or face fines, which have yet to be set.
The cost of Wiri prison will be capped at $900 million, including capital and operating costs over the 25-year contract.