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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.
Australia Square Tower rises 48 floors to 170 m at 264 George Street, Sydney NSW, completed 1967, designed by Harry Seidler & Associates. We have no space listed in the building right now — our concierge can approach the landlord or a sitting tenant directly, free for tenants.
Floors marked leased aren't dead ends — our concierge can approach the landlord or tenant directly. Free for tenants.
Live on Sidespace at Australia Square Tower right now.
Tank Stream Labs 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 →A circular tower of constant diameter standing free on an open plaza — Harry Seidler and Pier Luigi Nervi's 1967 landmark, and still the only round office tower in the Sydney CBD.
The tower is 42 metres in diameter around a 20-metre central core, giving a column-free span of about eleven metres and a donut-shaped floorplate of 1,032 square metres that is identical on every level. Twenty precast concrete columns taper as they rise; they are both the structure and the finish. Seidler placed the tower on just a quarter of the site, leaving the rest as public plaza with trees, a fountain and outdoor restaurants — which is why it stands free rather than sitting on a podium.
Australia Square won the Sir John Sulman Medal in 1967 and the RAIA National Award for Enduring Architecture in 2012. It is owned in a fifty-fifty joint venture between Dexus and The GPT Group. Tenants get a five-star concierge, the Level 7 "Third Space" with boardrooms, an auditorium and podcast studios, new end-of-trip facilities, and around seventeen retail and dining tenancies including O'Bar on Level 47. Wynyard Station is directly opposite and the George Street light rail runs past the door.
| Grade | A-grade |
| Status | Established |
| Completed | 1967 |
| Refurbished | 2003 |
| Architect | Harry Seidler & Associates |
| Owner | Dexus and The GPT Group |
| Floors | 48 |
| Height | 170 m |
| Typical floorplate | ~1,032 m² |
| Precinct | Wynyard |
Sustainability performance from public NABERS certifications.
A tenant register that doubles as a market signal — global finance and first-tier law, plus flexible serviced offices you can move into today.
Australia Square Tower sits in the Wynyard — trams at the door and rail within a short walk.
Explore the wider market: Offices for lease in Melbourne CBD →
Australia Square marked half a century since the tower's completion in 1967.
Suites on Levels 21, 36, 44 and 45 were taken by Barings, Hamilton Locke, Darktrace and Cardiff Global.
Tell us what you need — floor, suite or serviced — and we'll have options and pricing back to you within two business hours.
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