After eight long years, the iconic Christchurch Town Hall is back.

After eight long years, the iconic Christchurch Town Hall is back.

After eight long years, the Christchurch Town Hall is back - opening to the public on February 23rd. A live performance from Shapeshifter together with the Christchurch Symphony Orchestra followed on March 1st, signifying yet another milestone in Christchurch’s spirited resurgence. 

But how did we get here? Tonkin + Taylor undertook some shape-shifting of our own with our geotechnical team seizing the chance to showcase their talent. Over 25 staff have worked on the restoration since March 2011 - a technically challenging problem, as the foundations beneath the building had settled and stretched, but the majority of the building remained intact.

Using ground-breaking techniques (literally), our innovative foundation design used 1100 underground cement-mix columns to help stabilise the soil, and protect the building from future earthquakes. The work required a delicate touch, as the concrete was jetted seven metres into the ground from inside the auditorium - an architectural and acoustic masterpiece.

Watch our senior geotechnical engineers, Kirsti Murahidy and Mike Jacka explain more in this video.