The first Sirena 42M has entered the water, combining Luca Vallebona’s exterior design, Van Oossanen naval architecture and interiors by Hot Lab.
For a yacht builder, launching a new flagship is more than adding metres. It requires different engineering, supplier coordination, owner expectations and operational thinking. Sirena Yachts has now crossed that threshold with the first 42-metre model in its larger superyacht range.

The Sirena 42M is the Turkish yard’s largest yacht to date and the first completed model from a family also conceived at 35 and 50 metres. Construction began in late 2023, with hull and superstructure joined in February 2025. The first yacht was sold through Sirena’s in-house team and is scheduled to appear at the Monaco Yacht Show.
Exterior design is by Luca Vallebona, with naval architecture by Van Oossanen Naval Architects and detailed engineering by Eureka. The combination places efficient hull development beneath an exterior intended to deliver generous usable deck areas rather than relying on size alone.
Inside, Hot Lab, part of The Viken Group, has developed an organic design language. That description typically signals rounded forms, natural materials and fewer hard visual transitions between rooms. The effectiveness will be easier to judge when completed photography and onboard access replace renders, but the approach suits the current movement towards calmer, residential yacht interiors.

At 42 metres, owner experience becomes inseparable from crew operation. Buyers should examine crew circulation, galley logistics, storage, engine-room access, tender handling and noise isolation alongside the guest spaces. A successful yacht must make hospitality appear effortless because the technical and service plan is working invisibly beneath it.
The Monaco debut will be important for Sirena. It places the 42M in front of brokers, owners and advisers comparing it with established European yards in the same bracket. Build quality, systems access and finish consistency will matter as much as the silhouette.

The first launch also creates a reference point for the wider range. If the 42M performs well in use, it can give credibility to both smaller and larger Sirena superyacht proposals. A flagship’s job is therefore not simply to impress its owner; it must demonstrate what the yard can reliably deliver next.
Fact box
– Model: Sirena 42M
– Length: 42 metres
– Status: First hull launched; Monaco Yacht Show debut planned
– Exterior: Luca Vallebona
– Naval architecture: Van Oossanen Naval Architects
– Engineering: Eureka
– Interiors: Hot Lab, The Viken Group
– Significance: Largest Sirena yacht to date
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Set on one of the city’s last absolute riverfront sites, The Riversdale by Mosaic combines irreplaceable waterfront ownership with one of Brisbane’s most significant residential opportunities.
Held for decades by the Jesuit Fathers, the landmark Newport property combines direct sand access, sweeping ocean views and redevelopment potential across a prized 967sqm holding.
One of Sydney’s most tightly held beachfront estates has emerged on the market, with a landmark Newport holding offering buyers the chance to secure an irreplaceable slice of the Northern Beaches coastline.
Positioned directly on the sand at 11 Calvert Parade, Newport, the 967sqm estate is described as one of the most significant beachfront offerings to hit Sydney’s market in decades.
Set within an exclusive oceanfront enclave, the property pairs sweeping coastal views with direct private beach access and a substantial grassed frontage that appears to spill seamlessly into the shoreline beyond.
From the home, uninterrupted panoramas stretch across Newport Beach towards Bilgola Headland, with Newport Reef sitting prominently within the outlook.
The offering is expected to attract significant interest from buyers seeking a blue-chip weekender, a long-term family estate, or a future architectural statement.
Concept plans by acclaimed Northern Beaches architect Dan Raymond present a vision for a new luxury residence designed to capitalise on the site’s scale and prestige.
The property’s history is equally compelling.
Known as “Howth”, the original weatherboard residence was built circa 1930, with the name derived from the Irish word for “headland”. In later years, the home was held by the Jesuit Fathers and used as a peaceful retreat for clergy.
Today, much of that nostalgic coastal character remains intact.
The primarily single-level home features ocean views from the main living zone, while a wraparound dining room and adjoining sunroom open onto a large entertaining deck overlooking the water.
Accommodation includes a main bedroom with an ensuite, a spacious second bedroom, and an oversized loft-style retreat that could function as additional guest accommodation, a rumpus room, or studio space.
A galley-style kitchen, high ceilings, original timber floorboards and ducted air-conditioning add to the home’s immediate liveability, while a repurposed two-way fireplace offers the opportunity for restoration.
According to the campaign brief, there are only 66 comparable oceanfront properties across Sydney, making opportunities of this scale and position exceptionally rare.
Located moments from Newport village, cafes and surf breaks, the property is also being marketed as the last remaining opportunity of its kind along Newport Beach.
The property at 11 Calvert Parade, Newport, is listed via an expressions-of-interest campaign closing on June 8.
For enquiries, please contact Nik Vuko: 0416029417
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