Around $14 million in additional fundraising would be needed to restore ChristChurch cathedral, a much lower sum than previously estimated, government documents say.
The future of the badly damaged building has been uncertain for six years. The Anglican Church favours demolishing what remains of the structure and building constructing a new cathedral while some heritage advocates want the original restored.
The Anglican Church's synod will meet next month to make a decision about the building.
Last month the government and the Christchurch City Council made public an offer to the church to restore the building; the government would contribute $25 million of grants and loans and Christchurch City Council $10m subject to public consultation.
Documents released by the government about the offer said this would mean the amount needed in further fundraising was about $14m, down from an estimated $40m-$50m.
Under the offer, additional fundraising would be managed by a trust, appointed by the Government.