PGC undertook seismic strengthening works at Whakatu House, enhancing the building’s structural integrity, safety and resilience in the event of an earthquake.

The project involved a range of structural upgrades, including new foundations tied into the existing structure, strengthening of masonry walls and the installation of internal strap bracing to improve the building’s overall seismic performance.

Key works included the installation of Python C screws to connect the inner and outer layers of masonry, alongside additional bracing to strengthen the roof and wall systems. These improvements were designed to ensure the building performs as a cohesive structure under seismic loads.

The completed strengthening works achieved a seismic rating of 67% of the New Building Standard (NBS), significantly improving the building’s structural resilience and providing a safer environment for its occupants.