As Australia's cities push skyward amid rapid urban growth and international investment, the Q1 Tower on the Gold Coast remains the nation's tallest completed building at 323 meters (1,058 feet) in early 2026. Yet ambitious proposals and under-construction projects signal that the country's skyline is on the cusp of dramatic change, with several supertall towers poised to claim the title in coming years.

The Council on Tall Buildings and Urban Habitat and Wikipedia's updated tall buildings database confirm that no structure has yet surpassed the Q1, completed in 2005. Australia 108 in Melbourne holds second place at 317 meters (1,039 feet), followed closely by other residential-heavy icons that reflect the country's preference for high-rise living over pure office space.

Here are the 10 tallest completed buildings in Australia as of March 2026, based on architectural height to the highest point:

Q1 Tower, Gold Coast — 323 m (1,058 ft), 78 floors. Completed in 2005, this iconic residential tower on Surfers Paradise's beachfront long held the title of the world's tallest residential building. Its sleek, sail-like design continues to dominate the Gold Coast skyline and attract tourists to its observation deck.

Australia 108, Melbourne — 317 m (1,039 ft), 100 floors. Finished in 2020, this mixed-use tower in the Southbank precinct features luxury apartments and a striking crown inspired by Australian flora. It briefly challenged Q1 for supremacy and remains Melbourne's tallest.

Eureka Tower, Melbourne — 297 m (975 ft), 92 floors. Opened in 2006, Eureka is known for its bold red and gold facade and Edge experience, a glass cube that extends from the building. It was Australia's tallest for several years before being overtaken.

Crown Sydney (One Barangaroo), Sydney........

© International Business Times