Seismic Strengthening of Office Tower


Precinct Properties New Zealand


SAP Tower
151 Queen St


Entire Tower

Services Provided

Project management
Contract administration


The assignment was very complex in several ways

  • Installation of large structural steel plates into the existing concrete floor over multiple levels which then had to be connected to steel brackets fixed to the sheer walls
  • Undertaking noisy and dusty structural alterations in a fully occupied building
  • Making good all tenancy finishes to affected areas
  • liaising with tenants to keep them fully informed of progress


  • The project was extremely successful, increasing the seismic rating of the building from 35% to the client’s goal of 80% of New Building Standard (NBS), with very little disruption whatsoever to the operation of the building
  • No complaints from tenants
  • The strengthening works have delivered a tower which now satisfies market requirements for seismic performance and this will reflect in high tenant occupancy levels going forward and an increase market value
  • The client expected the works on site to take 10 months, but the project was completed a month ahead of programme
  • The project was completed well within budget which exceeded clients’ expectations