Addition: superyacht concept featuring distinctive exterior and space arrangement

Hong Kong-based M51 Yacht Design studio has revealed the details of its new 70-metre concept named Addition
January 31 2025 3 minutes to read
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The Addition's massive aft section can be opened at anchor

As opposed to numerous superyachts featuring open aft sections, the Addition chooses to hide this space from prying eyes 

The Addition’s exterior lines echo the patterns of waves on the sea surface. Designer Anthony Glasson made them flowing and smooth on purpose, while the split bulwarks reinforce the effect. 

The Addition's massive aft section can be opened at anchor
The Addition's massive aft section can be opened at anchor

The massive aft section looks closed, but in fact it conceals a courtyard with a jacuzzi, a bar and a lounge. At anchor this space can be opened with the help of side terraces and transom and turn into a huge beach club. 

Via the main staircase with a glass bridge over the jacuzzi, one can go up from the yacht’s atrium to the main deck. This solution will allow the guests to move freely between two levels, while the courtyard can become the main gathering spot on board. 

The addition features a courtyard, or atrium
The addition features a courtyard, or atrium

With a beam of 11.5 m the Addition has an impressive internal volume of about 1350 GT. She can accommodate up to 12 guests. The master suite and VIP cabins are located on the main deck, which is split level forward. There are four more guest cabins below deck. 

The Addition’s walk-around bridge is a great opportunity to take a walk, while on the sundeck one can relax in a jacuzzi or on sunpads, or find shelter in the shade of the hardtop, where the dining area is united with a bar. Sliding glass doors can close the sundeck from the bow, while it can be accessed via the exterior spiral staircases that connect the upper levels of the superyacht. 

The beach club on board the Addition is one of the main gathering and relaxation spots
The beach club on board the Addition is one of the main gathering and relaxation spots

The vessel is planned to be built in steel and aluminium and equipped with a full-beam (7.5 m) tender garage and a separate water toy box. 

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