Company:Fletcher Construction, Wellington
Project:133 Molesworth Street, Wellington
he former William Clayton Building was the first building in the world to feature a lead-rubber base isolation system when constructed in 1982. 30+ years later, the building required a significant refurbishment, and an expansion to make it an appealing property to lease.
The refurbishment involved stripping the building back to its concrete frame, and strengthening the structure. The expansion added an additional two levels and 7,500m2 of new net lettable floor area. This was achieved without increasing the size of the building’s footprint. Fletchers were engaged with Early Contractor Involvement (ECI), with Aaron’s role being to provide buildability and value engineering input to the design team. Those contributions enabled design savings and improved construction methodologies, which are hallmarks of ECI projects.
Project challenges included the removal of hazardous substances from the restricted basement spaces, and a mid-project decision to lift the structural performance of the building. This redesign meant that the new base isolators had to be installed at the end of the project. Aaron as Project Manager provided a significant contribution to an extremely challenging project.