Bunnings Warehouse, Bellambi

Northrop provided structural design services for Bunnings Bellambi with local builder, Edwards Constructions. The project involved the design and construct of a single-storey steel-framed warehouse, approximately 230m long and 75m wide. Our primary challenge was getting out of the ground, given that the site was flood-prone and the ground condition was poor.

Poor soil conditions necessitated an alternative solution to the traditional slab-on-ground approach used in most industrial warehouses.  We worked closely with the builder to determine the most economical way to suspend almost half of the ground floor slab and accommodate 100-year flood flow events. Our team designed timber pile foundations on a grid of ground beams, spaced to support the entire slab, meeting the end client’s stringent requirements regarding strength capacity, joint locations, and finishes. We also consulted with the project civil engineer to provide flood storage underneath the slab.

The Bellambi store is one the first to use a Fusion Modular mechanical system for indoor thermal comfort. We collaborated closely with the client and builder on the framing of the insulated sandwich panel walls. Rather than precast concrete panels to the perimeter walls and parapets, we designed framing for low-level precast concrete dado panels and then insulated sandwich panels above.

Northrop provided prompt and reliable construction phase services to allow the builder to progress site works. We gave guidance and advice regarding crane movements and suggested structural system changes that would better suit the construction program.  We liaised closely with other sub-consultants throughout the works to ensure overall coordination of our design.

Client Name
Edwards Constructions
Construction Value
$25 million

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