MOSAIC SECURES $30M RIVERFRONT SITE FOR LANDMARK SOUTH BRISBANE PROJECT
The developer’s most ambitious Brisbane tower to date will anchor new era of riverfront living.
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Mosaic Property Group has made its long-anticipated move into South Brisbane, acquiring a $30 million north-facing riverfront site at 91 Montague Road for what will become its largest project to date, with Stage 1 expected to carry an end value of around $500 million.
The 4,282-square-metre parcel, purchased from the Schiavello Group through Knight Frank’s Christian Sandstrom, commands 35 metres of uninterrupted Brisbane River frontage and sits in the city’s cultural heart, with access to West End and the CBD.
The site adjoins a precinct earmarked for new parkland, housing, and cultural infrastructure, putting the development at the centre of Brisbane’s next wave of riverside regeneration.
Mosaic has begun concept planning with Bureau Proberts for a luxury, owner-occupier-focused tower consistent with its flagship projects across South-East Queensland.
Founder and Managing Director Brook Monahan said the acquisition represented a pivotal step in the company’s growth and its evolution as a leader in the luxury residential market.
“This is one of the most extraordinary opportunities we have ever secured — a once-in-a-generation riverfront site that gives us the platform to deliver something truly transformative for Brisbane,” Monahan said.
He added that Mosaic’s vertically integrated model and disciplined site-selection strategy had been key to maintaining momentum despite industry headwinds.
“Escalating costs, tighter finance, planning complexity and labour shortages are causing many projects to stall or be shelved. Mosaic’s vertically integrated model and disciplined approach — targeting only the most exceptional locations where people genuinely want to live — has enabled us to continue bringing projects to life.”
Founded in 2004 and rebranded in 2012, Mosaic has completed more than 70 projects worth over $2 billion and has another $2 billion pipeline secured. This year alone, the group has delivered five luxury developments totalling $580 million and currently has six active construction sites worth $1.35 billion.
Monahan said Mosaic’s philosophy remained customer-first. “We had to learn to crawl before we could walk — steadily building capability, growing our people, refining our model, investing heavily in our business, and deepening our understanding of what customers truly value.”
The South Brisbane project is scheduled for release in early 2026.
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Ray White senior data analyst Atom Go Tian says Sydney’s elite postcodes are pulling further ahead, with Bellevue Hill dominating the nation’s most expensive streets in 2025.
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Sydney has cemented its status as the nation’s luxury capital, with Kambala Road in Bellevue Hill being Australia’s most expensive street this year, posting a median house price of $39.35 million.
And, according to Ray White senior data analyst Atom Go Tian, last year’s leader, Wolseley Road, was excluded from this year’s rankings due to limited sales.
“Wolseley Road recorded only three sales this year and was therefore excluded from the rankings, though its $51.5 million median would have otherwise retained the top position,” he says.
Bellevue Hill continues its dominance, accounting for six of the nation’s top 10 streets. Tian says the suburb’s appeal lies in its rare blend of location and lifestyle advantages.
“The suburb’s enduring appeal lies in its rare combination of proximity to both the CBD and multiple beaches, harbour views, and large estate-sized blocks on tree-lined streets.”
Vaucluse remains a powerhouse in its own right. “Vaucluse extends this harbourside premium with even more direct beach access and panoramic water views,” he says.
The gulf between Sydney and the rest of the country remains striking.
According to Tian, “Sydney’s most expensive streets are more than five times more expensive than the leading streets in Perth and Brisbane, and more than 10 times the premium streets in Canberra and Adelaide.”
He attributes this to Sydney’s economic role and geographic constraints, describing it as “Australia’s financial capital and its most internationally connected city.”
Beyond Sydney, each capital city has developed its own luxury hierarchy. Tian highlights Melbourne’s stronghold in Toorak, noting that “Melbourne’s luxury market remains centred around Toorak, led by Clendon Road, St Georges Road and Linlithgow Road.”
Brisbane’s prestige pockets are more dispersed: “Brisbane’s luxury real estate shows a more diverse pattern,” he says, led by Laidlaw Parade at $6.5 million. Perth’s top-end market remains anchored in the Peppermint Grove–Dalkeith corridor, with Forrest Street at $7.5 million.
He also points to the stark contrast at the lower end of the spectrum. “Darwin presents a mirror image, hosting all 10 of the country’s cheapest streets,” Tian says. Austin Street in Southport sits at just $117,500.
The national spread reaches its extreme in New South Wales. “Sydney emerges as the most polarised market, spanning an extraordinary range from Railway Parade in Katoomba at $385,000 to Kambala Road’s $39.35 million,” Tian says.
Methodology: Tian’s analysis examines residential house sales between November 2022 and November 2025, with only streets recording at least five sales included. Several streets with higher medians, including Black Street, Queens Avenue and Clairvaux Road in Vaucluse, were excluded because they did not meet the sales threshold.
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