Westralia Square 2, 143 St Georges Terrace
8 offices listed at Westralia Square 2, 143 St Georges Terrace, from $649/mo all-inclusive, 1 to 11 people, availability updated 5 July 2026.
The building, floor by floor
A floor-by-floor elevation of the tower showing the tenants we can verify, the spaces we list, and where our concierge can help. Hover or tap a floor for detail, the highlighted floors are the ones you can move into.
Westralia Square 2, 143 St Georges Terrace floor by floor
Westralia Square 2, 143 St Georges Terrace rises 11 floors at 143 St Georges Terrace, Perth WA, designed by Benson McCormack Architecture with Paterson Architects. We list 8 offices in the building; see the spaces below for the detail.
Floors marked leased aren't dead ends, our concierge can approach the landlord or tenant directly. Free for tenants.
Available at Westralia Square 2, 143 St Georges Terrace
Live on Sidespace at Westralia Square 2, 143 St Georges Terrace right now.
Serviced offices
Liberty Flexible Workspaces · 8 spacesLiberty Flexible Workspaces operates serviced offices here, all-inclusive monthly pricing, move in within days.
Looking for something else in the building, a whole floor, a fitted suite, or space that isn't listed? Our concierge can find it.
Ask our concierge →Perth's first high rise timber office building
Perth's first high rise timber office building, nine and a half thousand square metres of cross laminated timber raised on top of an existing car park.
Westralia Square 2, known as WS2, is the first high rise timber office building in Perth and the Perth CBD's first cross laminated timber office building. It was designed by Benson McCormack Architecture in collaboration with the West Perth practice Paterson Architects, and is held by GDI Property Group.
The premium grade building carries about 9,500 square metres of net lettable area over 11 floors of office space, and was designed to achieve a 5 Star NABERS Energy rating and a 5 Star Green Star rating.
It was built on the existing Westralia Square site, on top of the multi level car park already there, which is the unusual part: rather than demolishing and starting again, the timber structure was light enough to be added above what was standing. Savills moved its Perth headquarters into the building in 2023. Liberty Flexible Workspaces runs the serviced offices we list here.
Key facts
| Grade | Premium |
| Status | New |
| Architect | Benson McCormack Architecture with Paterson Architects |
| Owner | GDI Property Group |
| Floors | 11 |
| Total NLA | ~9,500 m² |
| Precinct | St Georges Terrace |
Built on top of a car park, in timber
Who's in the building
The tenants we can verify from public sources, plus any serviced offices you can move into today.
- Savills
- Liberty Flexible Workspaces
Transport & location
Westralia Square 2, 143 St Georges Terrace sits in the St Georges Terrace, trams at the door and rail within a short walk.
Explore the wider market: Offices for lease in Perth →
Other buildings in Perth
Take space at Westralia Square 2, 143 St Georges Terrace
Tell us what you need, floor, suite or serviced, and we'll have options and pricing back to you within two business hours.
Nothing listed that fits?
We can still get you into this building. Our concierge approaches landlords and tenants directly, off-market floors, sublease space, upcoming expiries. Free for tenants, always.
Talk to our concierge