Westralia Square 2 (WS2)

WS2 is a showcase of sustainability innovation. It is Perth’s first
CBD commercial building to integrate sustainably sourced, cross
laminated timber and demonstrates how sustainable design can
deliver both commercial and environmental outperformance while
meeting tenant needs.

WS2 is a highly innovative, low-carbon 12 storey office building
located in the heart of Perth. As an infill project over an existing
multi-storey carpark podium, the building has been designed as a
lightweight steel-timber hybrid. The steel frame structure with a
cross-laminated timber (CLT) floor plate provides the significant
benefit of a c.70% embodied carbon saving compared to the
typical reinforced concrete equivalent.

A new highly durable, weather resistant ETFE polymer canopy
guides visitors from St Georges Terrace via Westralia Square to the
building’s lobby which features a timber coffer ceiling and a stoneclad
core in contrast to the glass and metal external shell.
The surrounding public domain has been upgraded with new
bluestone paving, seating and landscaping.

Awards
Winner 2025 PCA WA (Best Commercial Development)
Finalist 2025 PCA National (Development Innovation)
Finalist 2025 PCA National (Best Office Development)
Finalist 2025 PCA National (Best Sustainable Development)
Winner 2024 PCA WA (Best Innovation Award)
Commendation 2024 PCA WA (Best Sustainable Project Or Development Initiative)
Winner 2024 MBA (Best Office Building $50-100m)
Winner 2024 Institute of Structural Engineers (Structural Awards)
High 2024 Sustainable Building Awards Commendation (Interior Design)