Significant foundation work to strengthen the earthquake-damaged Christchurch Town Hall is under way.
The land beneath the town hall is severely damaged and the city is spending $127 million repairing the building.
It says a thousand large concrete piles will be injected eight metres into the ground under the building and and machines have been specifically imported from Germany for the work.
A thick concrete slab will be laid over the concrete columns, which will help to bring the Town Hall up to 100 percent of New Building Standard.