The four-deck Sirena 42M superyacht is the first model in Sirena Superyachts' new 35m to 50m range, with exterior design and layout by Luca Vallebona, interiors by Hot Lab and naval architecture by Van Oossanen.
Having launched earlier this year, the first hull was subsequently sold ahead of its Monaco debut. The latest images provide a more detailed look at the yacht's onboard arrangement, including an unusual two-level owner's terrace, a substantial beach club and interiors inspired by the movement of water.
Sirena 42M Owner's Suite Features a Private Two-Level Patio
One of the most distinctive features of the Sirena 42M is its owner's patio, positioned forward on the main deck and accessed directly from the full-beam owner's suite.
Rather than using the entire foredeck for conventional outdoor seating, Vallebona has created a sheltered, open-air courtyard within the superstructure. Sliding glass doors connect the space to the owner's cabin, while a pergola, freestanding armchairs and planted areas give it the character of a private garden.
Hidden means private, but not fully enclosed, so that the daylight or the night summer sky can flood, can complete, can give life and poetry to this space which is usually a closed technical space just behind the mooring area."
- Luca Vallebona
A curved staircase leads to a second seating area above, where two built-in sofas sit beneath the wraparound glazing of the superstructure. The arrangement gives the owner two levels of private outdoor space, separated from the superyacht's principal guest areas.
Inside, the owner's suite includes a dedicated office, dressing room and ensuite bathroom, with the patio effectively extending the accommodation beyond the cabin itself.
Inside the Sirena 42M: Sculptural Interiors Inspired by Water
The first interior images reveal a nature-inspired design by Milan-based studio Hot Lab, part of the Viken Group, with curved surfaces and flowing forms influenced by ripples spreading across water.
In the main salon, floor-to-ceiling windows and fully opening aft doors bring natural light into a space finished with walnut parquet, Italian limestone and sculpted wooden panels. Curved bouclé sofas, forest-green accents and carpets inset into the timber flooring add texture, while concealed lighting within perforated ceiling panels creates a softer atmosphere.
The water-inspired theme continues into the main lobby, where sculpted marble flooring and a suspended light fitting echo the movement of a drop hitting water. Even the galley has received particular attention, with dark marble-effect surfaces and domestic-style appliances intended to encourage informal family use.
Accommodation is provided for up to 11 guests across five cabins, including the full-beam owner's suite on the main deck. Below, two VIP doubles and two convertible twin cabins surround a central lobby, each with an ensuite bathroom and large hull windows. Separate quarters accommodate up to nine crew.
A 71-Square-Meter Beach Club Opens Up at the Stern
The aft deck is another major focus of the new images of the motor yacht, with a 71-square-meter beach club arranged around a glass-backed swimming pool integrated into the transom. Fold-down terraces extend the usable deck area on either side, while a series of shallow steps leads from the main deck toward the swim platform.
A C-shaped seating area overlooking the stern provides a place for guests to gather above the pool, with space for additional loungers when the terraces are deployed. At water level, a hydraulic swim platform provides direct access to the sea.
Further outdoor space is available on the sun deck, where a forward-facing triple sunpad sits behind a curved glass windscreen. A hardtop shelters the bar and dining area, while freestanding furniture allows the remaining deck to be adapted for different uses, including an outdoor cinema, exercise area or hot tub.
Built in Turkey with a steel fast-displacement hull and aluminum superstructure, the Sirena 42M features naval architecture by Van Oossanen. Twin 1,450hp MAN engines delivered a top speed of 16 knots during sea trials, while a cruising speed of 10 knots provides a reported range of 4,600 nautical miles. A dedicated garage accommodates a tender up to 5.65m.
Sirena 42M Leads New 35m to 50m Superyacht Range
The 42M represents a significant expansion of Sirena's portfolio, moving the Turkish builder further into the custom superyacht market. The model is the first of three yachts planned for the Sirena Superyachts range, with 35m and 50m designs also announced.
Its Monaco debut follows a series of milestones for the first hull, from construction and launch through to its sale ahead of the September show. For Sirena, the new flagship establishes a larger platform for the brand, with an emphasis on private owner's spaces, extensive outdoor living and transoceanic cruising capability.
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