Christchurch Town Hall Repair

Christchurch Town Hall refurbishment and seismic remediation has now completed a three-year contract with official opening taking place on 23 February 2019. Octa had a two-person full time presence on site for much of those three years, taking the Project Manager and Supervisor role under the NEC 3 form of contract.

The heritage listed building is of special significance to the people and city of Christchurch. Following damage from the 2011 earthquakes, the project includes the installation of circa 1,100 jet grout piles beneath the floors and foundations which retard lateral spread of the soil beneath the structures.

New, 5,400 cu metres of heavily reinforced concrete slabs and columns were constructed with some 67 tonnes of reinforcement.

The Limes Room building was supported on temporary works while columns were broken out and jacks installed to enable re-levelling of the structure. Once completed the loads were transferred back to the temporary works and the old columns demolished and re cast - once again taking the load.

The project was administered using the Christchurch City Council collaboration tool, Conject. This is a web-based system used for the storage, retrieval, distribution and review of all contract documents as well as being structured to enable the administration of NEC processes.

A new purpose-built facility was also constructed for the Christchurch Symphony Orchestra (CSO), giving it a permanent home in the complex for the first time.

This is one of the biggest heritage/conservation projects undertaken in Christchurch.  The main auditorium has been restored and strengthened to 100% NBS.

Project Name

Christchurch Town Hall Repair


Christchurch City Council