ISA Yachts, part of Palumbo Superyachts, has sold a 73-metre custom project to an American owner. According to the announcement published by PressMare, delivery is scheduled for 2030 and one of the planned features is a Nemo Room: a space below the waterline with large glazed surfaces facing the sea. It is a powerful sales detail, but the buyer issue is the complexity behind it.
The project marks ISA Yachts’ first collaboration with Sinot Yacht Architecture & Design, which is responsible for exterior and interior design. Naval architecture is by Azure Yacht Design & Naval Architecture, while List AG will build the interiors. The arrangement is planned for up to 14 guests across six cabins plus an owner’s suite on a dedicated deck. Crew count is given as 22.
A Nemo Room Needs More Than Drama
An underwater room works in launch communication. In brokerage due diligence, the questions are more prosaic: classification, insulation, condensation control, glass maintenance, emergency procedures and privacy. The more spectacular the feature below the waterline, the clearer the maintenance plan needs to be for the first years of operation.
Crew flow is just as important. A 73-metre custom yacht with 22 crew is not simply a larger version of a smaller yacht. It is a hotel-and-technical project in which guest movement, galley work, laundry, stores, tenders and service routes decide whether ownership feels effortless or demanding.
The story follows naturally from our report on ISA Essence 82m. That was a concept discussion. This is a sale with a delivery horizon, which means contract risk, specification control and owner-side cost become much more concrete.
For a W Yachts client, the lesson is direct: do not stop at the rendering. Test the yard’s large-custom record, designer responsibilities, bank guarantees, payment milestones, change-order procedure and the full technical acceptance plan.
