BAZ's Mobu 33 Concept Trades a Saloon for a 3.8m Atrium

What is the Mobu 33 concept, and what makes its layout different from a normal yacht this size

The Mobu 33 is a 33-metre motor yacht concept by the Turkish-German studio BAZ Yacht Design that removes the conventional enclosed saloon and puts a 3.8-metre-high atrium at the center of the boat instead, opening the main deck to the lower deck as one connected volume rather than a stack of separated rooms.

At 108 feet 3 inches (33 metres) LOA, the Mobu 33 is sized like dozens of semi-custom flybridge yachts already on the water, but BAZ Yacht Design's general arrangement is not. Instead of a saloon that sits as a sealed box between the cockpit and the foredeck, the studio has cut a 12-foot (3.8-metre) atrium through the middle of the boat, so the main deck living space and the lower-deck accommodation share one architectural volume rather than being separated by a floor. Half-levels step down from the saloon to link it with the staterooms below, and when the aft-deck doors are opened too, the studio says the greater part of the yacht becomes what its co-founders call sweepingly unrestricted, one continuous space from the cockpit through the atrium to the accommodation.

BAZ Yacht Design's co-founders, architect and interior designer Bilge Zaptcioglu Atal and marine engineer Barbaros Atal, describe the intent as putting the social experience first rather than treating it as a finish applied to a fixed hull plan. "The aft atrium is not simply a dramatic feature, it organizes how people gather, move between levels, and remain connected to the sea," they said, adding that the approach let them build what they call a performance yacht with a strong architectural identity rather than a conventional layout with a fast hull bolted underneath it. The studio calls the concept a social performance yacht for that reason, arguing that hosting family and friends should shape the whole design, not just the decor of the rooms people happen to gather in.

How fast is the Mobu 33, and what are her real dimensions

BAZ Yacht Design's own engineering puts the Mobu 33 at a 27-knot cruise and a 32-knot top speed on four 1,000hp Volvo Penta IPS units, on a hull with a 7.53-metre beam and a notably shallow 1.35-metre draft for a yacht this length.

The performance numbers come from BAZ Yacht Design's own preliminary engineering, which the studio says is already further advanced than most concept proposals reach before a shipyard is chosen. Quadruple Volvo Penta IPS pod drives, each rated at 1,000hp, are the basis for the estimate: a 27-knot cruising speed and a 32-knot top speed, figures that would put the Mobu 33 comfortably in the performance-cruiser bracket rather than the slower displacement or semi-displacement hulls common at 33 metres. Beam is 7.53 metres (24 feet 8 inches), unremarkable for the size, but draft is only 1.35 metres (4 feet 5 inches), shallow enough to open up coastal shelves, thin-water anchorages and smaller marina berths that a deeper-keeled 33-metre yacht simply cannot reach.

None of this has been tank-tested or verified by an independent trial, since no hull has been built. BAZ Yacht Design frames the completed first-stage engineering as an advantage over rival concepts that stop at renderings, but it is still a design-office estimate rather than a sea-trial figure, and range has not been published at all. The studio says the Mobu 33 will be tailored to whichever buyer and shipyard eventually takes it on, which means the propulsion package, and the speeds that come with it, could still change once a yard's own naval architecture team gets involved.

Has BAZ Yacht Design ever built a yacht this size before

BAZ Yacht Design, founded in 2014 with offices in Turkey and Germany, has not delivered a ground-up newbuild at 33 metres, and its best-known completed project is a 2023 interior refit of the 40-metre Mengi Yay yacht North Star rather than a new hull of this scale.

The studio was founded in 2014 by Bilge Zaptcioglu Atal, an architect and interior designer, and Barbaros Atal, a marine engineer, and has built its reputation mainly on exterior styling and interior design work rather than as a naval architecture house with a string of delivered hulls. Its most cited completed project is North Star, a 131-foot (40-metre) Mengi Yay Yachts motor yacht whose interior BAZ Yacht Design reworked in Turkey in 2023, moving her decor from a black, white and yellow scheme with wavy lines to a calmer, contemporary look in soft blues and greens against light tones.

That is a real credential for interior work, but it is not the same discipline as taking a 33-metre performance hull with a cut-open atrium from a rendering through structural engineering, classification and sea trials. The Mobu 33 would be BAZ Yacht Design's first commission at this length and in this performance-cruiser category if a buyer and shipyard sign on, and the ambition of the general arrangement, opening two decks into one volume on a boat doing 30-plus knots, is a genuinely harder engineering problem than the refit work the studio has actually delivered to date.

What would an owner actually be committing to by pursuing the Mobu 33 concept

An owner interested in the Mobu 33 would be buying a finished piece of architectural thinking and a completed first engineering pass, not a yacht: there is no shipyard attached, no price published, no owner behind it yet, and the open-plan atrium that is the whole point of the design also removes the enclosed, weather-protected saloon that a conventional 33-metre yacht would offer.

Because the Mobu 33 exists only as a design-stage concept, there are no owner reports to draw on and none should be invented: nobody has lived aboard her, chartered her or taken her through a season, and BAZ Yacht Design is explicit that she still needs both a buyer and a shipyard partner before construction could start. What does exist is unusually complete for a concept at this stage, since the propulsion and structural engineering are already underway rather than left for whoever eventually commissions her, which shortens the path from a signed contract to a keel-laying compared with a bare rendering.

The tradeoff is built into the same feature that makes the concept notable. A conventional 33-metre saloon is an enclosed, air-conditioned room that seals off from weather and gives guests who want quiet a door to close; the Mobu 33's atrium and open aft doors are designed to remove exactly that separation, connecting the saloon, the half-level staterooms and the cockpit into one space. For an owner who entertains large groups and wants the boat to feel sociable and open, that is the entire appeal. For an owner who values a formal, enclosed saloon, or crew who need to close off guest areas during service or poor weather, the same feature is a real limitation, and it is one no amount of rendering can resolve until a hull exists to test it in a seaway.