Wellington will get its High Court back in the New Year, once water and earthquake damage is repaired.
Engineers have declared the building structurally sound, despite the damage it suffered in the 7.8 quake on November 14. But it will need repairs before it can be used again.
Ministry of Justice spokesman Antony Paltridge said the main issue was water damage "from pipes that burst, sprinklers, things that have come down, like ceiling tiles".
"So it's not a matter of simply tidying the place up. We're creating a work plan for what has to be done before the building can be reoccupied."
The building is expected to reopen early next year. An exact date will be given once the work plan is finalised.