Hot Lab

| Founded | 2004 in Milan by Michele Dragoni, Enrico Lumini and Antonio Romano |
|---|---|
| Based | Via Revere, Milan, in a studio opened for the firm's twentieth anniversary in 2024 |
| Backgrounds | automotive, industrial design and interior design |
| Disciplines | yacht interior design and exterior design |
| Ownership | acquired by the Viken Group, formed in early 2022 by Tillberg Design of Sweden |
| Sister company | Thalia Marine, the naval architecture firm Viken acquired in April 2022 |
| Workload | 22 superyacht projects under construction as reported in 2024 |
| Track record | the studio's own count is more than 60 projects launched and 18 awards |
| Columbus Yachts work | Acqua Chiara (47 m, 499 GT), Night Fury II (43.6 m, 462 GT), Big Naan (42 m, 443 GT) |
| Baglietto | the 54 metre C, delivered 2021 at 905 GT, interior by Hot Lab over an exterior by Horacio Bozzo Design |
| Heesen | Bijin, 49.9 m, 499 GT, interior by Hot Lab over an exterior by Omega Architects |
| Recent honours | Designer of the Year at the 2025 International Yacht and Aviation Awards |
| Design fee | staged as concept, development, detailing and site support. Not published. An interior-only appointment sits at the bottom of the 1 to 5 per cent market band for designers (SuperYachtReview 2026 price guide, updated March 2026) |
| The specification the studio draws is a far larger number than the fee, and it sits in the owner's or the yard's budget rather than the design contract | |
| On yard models the fee is inside the boat price, with further hulls normally covered by a royalty of roughly 1 to 1.5 per cent under published naval architecture practice | |
Milan, 2004
Michele Dragoni, Enrico Lumini and Antonio Romano came from automotive, industrial design and interior design. They were asked to design a 66 foot boat together, and the commission turned into a partnership. The studio has been in Milan since, and moved into a new office in the centre of the city in 2024 for its twentieth anniversary.
Milan matters to the work. The city is the centre of Italian furniture and product design, which means the studio sits inside the supply chain it specifies from. When Hot Lab draws a piece of loose furniture or a fabric for a yacht, the maker is often an hour away. That shortens lead times on the part of a build that is most likely to run late.
Architecture for Voyagers
The studio works under the phrase architecture for voyagers and treats the interior and the exterior as one problem where it gets both. The result is contemporary without being severe, with a heavy emphasis on materials and on the transition between inside and outside deck. Staircases, ceilings and the joints between surfaces are where the studio spends its effort.
That focus is deliberate. On a 45 metre yacht an owner spends most of his time in four or five spaces and passes through the others. Hot Lab designs to that reality, which is why a boat of theirs often feels larger than its gross tonnage suggests. A Robb Report Best of the Best prize in 2025 for a staircase is a fair summary of where the studio's attention goes.

The tonnage on a Hot Lab boat reads 499, 462, 443, which is a design decision and not an accident.
The Columbus fleet
The closest yard relationship is with Columbus Yachts, part of Palumbo Superyachts. Acqua Chiara at 47 metres and 499 GT carries both the exterior and interior by Hot Lab. So does Night Fury II at 43.6 metres and 462 GT. Big Naan, 42 metres and 443 GT, has a Hot Lab interior under an exterior by Hydro Tec.
Columbus also revealed a 65.5 metre flagship concept, the Atlantique 65, with a Hot Lab exterior and interior at around 1,300 GT. The studio described the line as drawn from sailing yacht proportions and 1950s sports cars. For an owner, the depth of that relationship means the studio already knows the yard's engineering, its finishes and its subcontractors before a project starts.

Interiors under other people's exteriors
A good deal of the studio's work is the interior alone. The 54 metre Baglietto delivered in 2021 as C has an exterior by Horacio Bozzo Design and a Hot Lab interior across 905 GT, laid out for a large family. Bijin, 49.9 metres from Heesen and 499 GT, pairs a Hot Lab interior with an Omega Architects exterior.
That split is normal in this part of the market and it suits an owner buying into an existing platform. The hull and the profile are fixed by the yard and the exterior designer. Everything the owner touches is still open. An interior studio brought in at this stage has less freedom and more responsibility for how the boat actually feels.
Living below 500 GT
Look at the numbers on the Hot Lab fleet and a pattern appears. Acqua Chiara sits at 499 GT, Bijin at 499, Night Fury II at 462, Big Naan at 443. None of that is coincidence. Above 500 GT the regulatory regime, the required crew and the certification burden step up, and the annual cost of running the boat goes with them.
Designing a 47 metre that stops just under the line is a volume exercise as much as a styling one. Every ceiling height, every bulwark and every enclosed space is measured against the ceiling number. An owner who is told his 45 metre will be lighter to run than a friend's is being told something specific about how the interior was drawn. It is one of the least glamorous things a design studio does and one of the most valuable.

The Viken Group
Hot Lab was acquired by the Viken Group, which was set up in early 2022 by Tillberg Design of Sweden, a firm with deep experience in cruise ship and large vessel interiors. Viken had already bought the naval architecture firm Thalia Marine in April 2022. By April 2023 Hot Lab was described as part of the group with sixteen yachts in build.
For an owner this cuts both ways. The group can now offer naval architecture, interiors and large-vessel engineering through related companies, which widens what a single appointment can cover. It also means the studio is no longer three independent designers answering only to themselves. An owner should ask who is actually assigned to his boat and get the names in the contract.

How a commission runs
Most projects arrive either through a yard developing a model or through an owner who has already contracted a hull. Hot Lab produces the interior concept, the general arrangement work that follows from it and then the detailed drawings and material specifications the yard builds to. On a semi-custom Italian project the design programme runs for months and delivery typically follows two to three years after contract.
The studio was reported to have 22 superyacht projects under construction in 2024, which is a heavy load for a firm of this size. That is a reasonable thing for an owner to raise directly at the first meeting. He should ask how many projects the team assigned to his boat is carrying, and what happens when two of them hit their fit-out peak in the same quarter. The answer tells him whether he is buying the studio or a corner of it.
What it costs, and where responsibility stops
Interior design at this level is charged against defined stages, with a concept fee, a development fee and then detailing and site support, and the studio does not publish any of them. The superyacht market band from the SuperYachtReview guide updated March 2026 is 1 to 5 per cent of build cost for a designer and a further 2 to 4 per cent for project management, both outside a yard's quoted price, and an interior-only mandate on a 45 to 55 metre Italian build sits at the bottom of that. On a EUR 30 million boat the arithmetic is a few hundred thousand euros. The cost that hurts is the specification itself, since the studio can draw a stone floor or a bronze staircase that costs more than the design work several times over.
Hot Lab does not build the interior and does not carry the yard's schedule. Naval architecture belongs to the yard or to another firm, and every performance guarantee lives in the build contract. An owner should hold the studio to drawings and specifications delivered on time and hold the yard to what it agreed to build from them. On a yard model the arrangement is different again, with the design fee inside the boat price and further hulls normally covered by a royalty, which published naval architecture practice puts at roughly 1 to 1.5 per cent of each boat.

Recognition, and who it does not suit
The studio was named Designer of the Year at the 2025 International Yacht and Aviation Awards and took a Robb Report Best of the Best prize the same year. Its own count is more than sixty launched projects and eighteen awards. Recognition of that kind helps a boat at resale by a small margin and confirms the finish met a standard specialists would defend.
This studio does not suit an owner commissioning above 65 metres, where the portfolio thins. It does not suit anyone who wants a classical or period interior, since the work is firmly contemporary. An owner who wants his designer to control the hull and the performance figures needs a naval architect appointed alongside, or a different studio entirely.
Contemporary dates fastest, small hulls sell quickest
Two forces pull in opposite directions on a Hot Lab boat. A firmly contemporary interior is the kind that dates soonest, because it is anchored to a moment in taste rather than to a tradition, and a fifteen-year-old contemporary scheme reads as old in a way a classical one does not. That is a cost to the second owner, and Ocean Independence noted on 11 May 2026 that the market does not usually give back the full cost of the refit that fixes it. The interior-only structure makes this sharper, because the studio's contribution is entirely in the part of the boat that gets replaced.
Pulling the other way is the size band, which is the most liquid in yachting. A 42 to 55 metre hull kept under 500 GT is cheap to crew, easy to berth and wanted by more buyers than anything above it, and the Columbus and Heesen boats in this portfolio sit exactly there. Denison Yachting recorded 470 sales of 24 metres and over in 2025 at a median 277 days on market, and this segment is where most of that volume is. The net position is that the boat sells on its hull and its tonnage, and the interior is what a buyer negotiates about rather than what he came for.
Practical detail
| Design fee | Not published. An interior-only appointment sits at the bottom of the 1 to 5 percent market band for designers, per the SuperYachtReview 2026 guide updated March 2026. |
|---|---|
| On a yard model | The fee sits inside the boat price, with further hulls normally covered by a royalty of roughly 1 to 1.5 percent of each boat under published naval architecture practice. |
| Group structure | Owned by Viken Group since June 2022, alongside naval architecture firm Thalia Marine and Tillberg Design of Sweden; ask which named individuals are assigned to your project rather than assuming it is the three founders. |
| Workload | 22 superyacht projects reported under construction in 2024; ask how many the specific team on your boat is carrying and what the plan is if two peak in fit-out at once. |
| Below 500 GT | The Columbus and Heesen hulls in the portfolio are drawn to sit just under the 500 GT threshold, which lightens the crewing and certification burden; ask explicitly whether a proposed layout keeps you under it. |
| What is not published | The studio's own fee, and any performance or delivery guarantee, which belong to the yard's build contract. |
What owners and crew report
Viken Group confirms the founders stayed in place after the 2022 acquisition
Tillberg Design of Sweden's own press release on forming Viken Group and acquiring Hot Lab states the studio keeps its Milan office and staff, with founders Enrico Lumini and Antonio Romano remaining at the helm.
Tillberg Design of SwedenTrade press confirms the Viken Group now spans design, naval architecture and project management under one ownership
Cruise Industry News and Yacht Harbour both reported the June 2022 Hot Lab acquisition as following Viken's April 2022 purchase of the naval architecture firm Thalia Marine, giving the group interiors, exterior design and engineering across related companies.
Cruise Industry NewsOcean Independence's own view is that a contemporary interior does not fully recover its refit cost at resale
Writing on 11 May 2026, the brokerage states the market does not usually give back the full cost of the refit that replaces a dated contemporary scheme, a cost that lands entirely on interior-only commissions like most of this studio's work.
Ocean Independence
What is good, and what to watch
Strong points
- The size band the studio builds in is the most liquid in the marketDenison Yachting recorded 470 sales of 24 metres and over in 2025 at a median 277 days on market, and the 42 to 55 metre, sub-500 GT hulls in this portfolio sit exactly inside that busiest segment.
- Deep, current relationships with the yards it works for22 superyacht projects were reported under construction in 2024, and the closest yard relationship, with Columbus Yachts, spans a full flagship concept down to three delivered hulls, so the studio already knows the yard's engineering and finishes before a project starts.
- The founders stayed on after the 2022 acquisitionTillberg Design of Sweden's own announcement of the Viken Group confirms Enrico Lumini and Antonio Romano remained in charge of the Milan studio, not a case of a name being bought and hollowed out.
What to watch
- A firmly contemporary interior is the kind that dates soonestAnchored to a moment in taste rather than a tradition, and Ocean Independence's own 11 May 2026 note is that the market does not usually give back the full refit cost of replacing it, a risk borne entirely by an interior-only commission.
- 22 projects in build at once is a heavy load to ask aboutAn owner should get in writing how many other projects the team assigned to his boat is carrying and what happens when two hit their fit-out peak in the same quarter.
- No naval architecture and no schedule guaranteeEvery performance figure and every delivery date lives in the yard's build contract, not the design agreement, and Hot Lab does not warrant either.
Who it is for: Owners building 40 to 55 metres at an Italian yard who want a contemporary interior and a boat that stays cheap to crew.