Discover the history, remarkable architecture and preservation story of one of Australia's most recognizable Brutalist buildings.
Few buildings in Australia capture the spirit of Brutalist architecture quite like the Sirius Building in Sydney.
Located in The Rocks, near the Sydney Harbour Bridge, this striking concrete landmark is famous for its stacked geometric forms, stepped terraces and distinctive silhouette.
But the story of the Sirius Building goes far beyond architecture. It is a story of social housing, community activism, threatened demolition and urban transformation.
What Is the Sirius Building in Sydney?
The Sirius Building is a landmark residential complex in The Rocks, Sydney, Australia.
Designed by architect Tao Gofers for the New South Wales Housing Commission, it was completed in 1980.
Originally containing 79 apartments, Sirius was created to provide housing for residents of the historic Rocks neighborhood.
Unlike traditional apartment buildings, Sirius features a dramatic arrangement of stacked concrete modules, creating one of Sydney's most recognizable examples of Brutalist architecture.
The History of the Sirius Building in Sydney
The history of the Sirius Building begins with the redevelopment debates that transformed Sydney during the 1960s and 1970s.
At the time, plans to modernize The Rocks threatened to displace established communities.
Residents, activists and preservationists opposed large-scale redevelopment. The Green Bans movement became particularly influential in protecting neighborhoods from demolition.
The Sirius Building emerged from this period as a public housing project intended to allow residents to remain close to their community.
Completed in 1980, it became an important example of how innovative architecture could serve social purposes.
Over the following decades, Sirius developed a reputation as both an architectural landmark and a symbol of Sydney's changing housing policies.
Why Is the Sirius Building Famous?
The Sirius Building is famous for its bold Brutalist design, unusual modular structure and controversial history.
Its architectural identity is defined by several features:
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Stacked concrete apartments: Interlocking geometric volumes create its distinctive profile.
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Exposed concrete surfaces: The building celebrates the raw appearance of its principal construction material.
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Stepped balconies and terraces: The arrangement gives the building its sculptural character.
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Modular architecture: Individual residential units combine to form a visually dramatic structure.
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Social significance: Sirius was originally designed as public housing rather than luxury accommodation.
These characteristics have made Sirius a celebrated example of Australian Brutalism.
Why Was the Sirius Building Threatened With Demolition?
During the 2010s, the future of the Sirius Building became uncertain as the New South Wales Government pursued plans to sell public housing properties in central Sydney.
Architecture enthusiasts, preservationists and former residents feared the building could be demolished or radically altered.
The Save Our Sirius campaign brought widespread attention to its architectural and social significance.
The campaign became an important part of Australia's architectural preservation movement.
Although the building's original public housing function was eventually lost, its distinctive concrete structure survived.
Who Bought the Sirius Building?
In 2019, the New South Wales Government sold the Sirius Building to private developer JDH Capital for approximately A$150 million.
The sale marked a major turning point in the building's history.
Rather than demolishing the structure, the new owners pursued a redevelopment that preserved its recognizable Brutalist exterior while converting the former public housing complex into luxury residential apartments.
The transformation generated controversy because it replaced affordable public housing with expensive private residences.
For preservation advocates, the building's survival represented an architectural achievement, but its changed social purpose remains a significant part of the debate.
What Happened to the Sirius Building After Its Sale?
Following the 2019 sale, Sirius underwent a major redevelopment.
The renovation, completed in 2024, transformed the former public housing complex into 76 luxury apartments.
Much of the building's distinctive stacked concrete character was retained, while new architectural elements and modern interiors were introduced.
Today, Sirius remains a prominent landmark in Sydney's urban landscape.
Its transformation continues to raise questions about heritage preservation, affordable housing and the future of historically significant architecture.
Is the Sirius Building Still Standing Today?
Yes. The Sirius Building has not been demolished.
Its original concrete structure survives, and the building has been restored and adapted for residential use.
While some features have changed, the stepped geometric silhouette that made Sirius an architectural icon remains recognizable.
Visitors to The Rocks can still see the building near the Sydney Harbour Bridge.
Is Sirius the Most Iconic Building in Sydney?
The Sydney Opera House is generally regarded as Sydney's most internationally recognizable architectural landmark.
However, the Sirius Building occupies an important place in the city's modern architectural history.
For enthusiasts of Brutalism, concrete architecture and twentieth-century urban design, Sirius is one of Sydney's most distinctive buildings.
Its significance lies not only in its striking appearance but also in the social and political history associated with its construction and preservation.
How Much Are Apartments in the Sirius Building?
Following its redevelopment, Sirius became one of Sydney's notable luxury residential addresses.
In 2024, apartments were marketed at prices starting around A$1.5 million for studio residences, while larger homes and penthouses commanded significantly higher prices.
These figures reflect reported marketing prices at the time, not necessarily current sale prices.
The contrast between its original public housing purpose and its luxury redevelopment remains one of the most discussed aspects of the building's history.
Why Sirius Matters to Brutalist Architecture
Brutalism is often associated with exposed concrete, powerful geometry and visually expressive structural forms.
Sirius represents these qualities through a highly distinctive residential composition.
Its stacked modules give the impression of individual concrete blocks arranged into a monumental architectural sculpture.
Unlike many Brutalist government or institutional buildings, Sirius was originally designed around everyday residential life.
That combination of bold visual identity and social purpose makes it particularly significant.
The building also demonstrates how architectural heritage can survive redevelopment while becoming the subject of wider discussions about a city's identity.
Sirius Building: From Brutalist Architecture to Streetwear
At GUBÉ WEAR, we believe architectural landmarks deserve to be celebrated beyond books, galleries and city streets.
The Sirius Building provides a distinctive inspiration for architectural graphic clothing.
Our Sirius Building Graphic T-Shirt draws from the building's recognizable concrete geometry, combining its stacked silhouette with a warm rust-orange sun and bold architectural typography.
The design celebrates Sydney's Brutalist heritage while bringing an iconic building into contemporary streetwear.
Made with heavyweight, garment-dyed cotton, the T-shirt is designed for architects, architecture students, urban explorers and admirers of modernist design.
Explore our Architecture T-Shirts Collection to discover more building-inspired apparel.
Frequently Asked Questions About the Sirius Building
Where is the Sirius Building located?
The Sirius Building is located in The Rocks, Sydney, Australia, near the Sydney Harbour Bridge.
Who designed the Sirius Building?
Australian architect Tao Gofers designed Sirius for the New South Wales Housing Commission.
When was the Sirius Building completed?
The building was completed in 1980.
Who bought the Sirius Building?
Private developer JDH Capital purchased it from the New South Wales Government in 2019 for approximately A$150 million.
Was the Sirius Building demolished?
No. The original structure survived and underwent a major redevelopment completed in 2024.
What is the architectural style of the Sirius Building?
Sirius is widely recognized as an example of Brutalist architecture, characterized by exposed concrete and bold geometric forms.
What is the most iconic building in Sydney?
The Sydney Opera House is Sydney's best-known international architectural landmark. Sirius is especially significant within the city's Brutalist architectural heritage.
Is the Sirius Building open to tourists?
Sirius is a residential building rather than a public museum. Its exterior can be viewed from surrounding public streets, subject to normal access restrictions.
The Legacy of Sirius Building
The Sirius Building is more than a landmark of Australian Brutalism.
It represents the relationship between architecture, community, political decisions and urban change.
From its origins as public housing to its preservation and transformation into luxury residences, Sirius has remained part of Sydney's architectural conversation.
Its extraordinary concrete silhouette continues to inspire designers, photographers, architects and admirers of distinctive buildings around the world.
GUBÉ WEAR — Architecture, worn.