Australia Square Tower
24 offices listed at Australia Square Tower, from $1,227/m² net, 4 to 18 people. NABERS Energy 4.5 stars, availability updated 7 October 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.
Australia Square Tower floor by floor
Australia Square Tower rises 48 floors to 170 m at 264 George Street, Sydney NSW, completed 1967, designed by Harry Seidler & Associates. We currently list space on 15 floors in the building.
Floors with space listed: Level 44 (Suite 44) · Level 41 (3 suites available) · Level 38 (Suite 3) · Level 31 (Suite 1) · Level 24 (2 suites available) · Level 23 · Level 22 (2 suites available) · Level 17 (Suite 14) · Level 16 · Level 15 · Level 14 · Level 13 · Level 12 · Level 11 · Level 10
Floors marked leased aren't dead ends, our concierge can approach the landlord or tenant directly. Free for tenants.
Available at Australia Square Tower
Live on Sidespace at Australia Square Tower right now, across 2 operators.
Commercial tenancies
Dexus · 19 spacesDexus holds commercial space here, whole floors and fitted suites, leased on standard commercial terms.
Serviced offices
Tank Stream Labs · 5 spacesTank 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 →Seidler's round tower on its open plaza
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.
Key facts
| 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 |
Independently rated
Sustainability performance from public NABERS certifications.
NABERS Energy
What's in the building
Who's in the building
The tenants we can verify from public sources, plus any serviced offices you can move into today.
- Origin Energy
- HWL Ebsworth
- Tank Stream Labs
Transport & location
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 Sydney →
What's happening at Australia Square Tower
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.
Australia Square Tower, answered
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Take space at Australia Square Tower
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