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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At the northern tip of Point Piper, hidden from the street and positioned directly on Sydney Harbour, “Radford” combines cinematic views, rare waterfront access and a fascinating connection to one of Australia’s most storied estates.
The five-bedroom residence occupies land once belonging to Paradis Sur Mer, the celebrated three-block waterfront estate that made Australian property history in 1982. The original mansion became the country’s first home reported to have sold for more than $5 million—and may also have inspired one of its fastest and most profitable resales.
Property developer and yachtsman Bernard Lewis purchased the estate at auction for $5.25 million, only to sell it within hours to English betting magnate and thoroughbred breeder Robert Sangster. Lewis reportedly made a $500,000 profit in the process.
Sangster renamed the property Toison D’Or—French for “Golden Fleece” and the name of one of his racehorses—and established it as a Sydney base with his then-wife, Susan. The estate subsequently changed hands and identities again, becoming Paradis Sur Mer, or “Paradise on the Sea”, during Susan’s marriage to financier Sir Frank Renouf.
After another headline-making sale near the peak of Sydney’s late-1980s property boom, the original mansion was eventually demolished and the waterfront holding subdivided. “Radford” now stands on one of those prized parcels, carrying a thread of that extraordinary history into the present day.
Harbour views take centre stage
Designed by award-winning architect Victor Berk and constructed in the early 1990s, the three-level modernist residence has been planned around its exceptional position.
Panoramic views stretch from the Sydney Harbour Bridge across Shark Island and Rose Bay to Manly. A prized northerly aspect fills the home with natural light, while bedrooms and living spaces open to decks, balconies and terraces overlooking the water.
The main living areas flow to a broad alfresco entertaining terrace, sunny swimming pool and level harbourfront lawn. Beyond the garden, a private jetty completes the quintessential Sydney waterfront lifestyle.
Inside, generous proportions make the home equally suited to private family life and large-scale entertaining. The formal dining area can accommodate up to 14 guests, while a Gaggenau-appointed kitchen incorporates an island, walk-in pantry and casual breakfast area opening to the poolside deck.
A fireplace anchors the principal living space, complemented by high ceilings, travertine floors and expansive glazing that keeps the harbour present throughout the home.
A private sanctuary on every level
The main bedroom is accompanied by two walk-in wardrobes, a sitting area and an ensuite featuring a spa bath, separate shower and twin basins. Three further bedrooms each have an ensuite, while a gym with its own kitchenette, built-in storage and bathroom can serve as a fifth bedroom or private guest retreat.
Additional spaces include a fitted home office, an upper-level family area, sauna, two powder rooms and a substantial laundry. A lift connects all three levels, and the central staircase sits beneath an atrium-style glass roof fitted with an electric retractable blind.
Ducted and zoned air-conditioning, extensive storage and a security alarm add everyday practicality. Internal access leads to an oversized secure double garage, with additional driveway parking.
Set in an elite cul-de-sac on one of Australia’s most prestigious waterfront streets, “Radford” is close to Lady Martins Beach, Prince Edward Yacht Club, the Royal Motor Yacht Club, Rose Bay’s marinas and leading schools. Double Bay’s restaurants, boutiques and village amenities are only minutes away.
It is an exceptional harbourfront residence in its own right—but its connection to the record-breaking Paradis Sur Mer estate gives it a place within the wider story of Sydney real estate.
Property details
Address: Wolseley Road, Point Piper, NSW
Bedrooms: Five, including a flexible gym or guest suite
Bathrooms: Five, plus two powder rooms
Parking: Oversized double garage and additional driveway space
Key features: Northerly aspect, panoramic harbour views, private jetty, swimming pool, level waterfront lawn, lift, sauna, home office and Gaggenau kitchen
Architect: Victor Berk
Agents: Michael Pallier, Sydney Sotheby’s & Brad Pillinger, Pillinger
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