• Guests

    10

  • Cabins

    5

  • Crew

    8

Length GT Built (REFIT)
40.71m
329 GT 1986
(2014)
Beam Draft Top Speed
8m 1.8m 16 Kts

Hilarium is a 40.71m motor yacht delivered by Dutch shipyard Royal Hakvoort in 1986. Her naval architecture and exterior design comes from the drawing boards of Diana Yacht Design.

Key Features

  • First Hakvoort-Diana collaboration
  • Ocean-crossing capability
  • Rare Japanese tamo interior
  • Floating cabin construction

Design & Construction

Designed around a displacement steel hull and an aluminium superstructure she features a 8m beam and a 1.8m draft. The yacht is built over 3 decks with an internal volume of 329 GT (Gross Tonnes).

Exterior Design

Hilarium occupies an important place in modern superyacht history. Delivered in 1986 as Lady Alice, she was the first yacht to emerge from the partnership between Diana Yacht Design and Hakvoort, a collaboration that would help establish both companies among the leading names in Dutch custom yacht building. At around 40m (131.2ft), she also arrived at the start of the custom megayacht boom, when yachts of this size began to redefine what private ownership could offer.

Rather than chase outright speed, Diana Yacht Design focused on range, comfort and versatility. Hilarium was engineered with a remarkably shallow 1.8m (5.9ft) draft, allowing her to reach the shallow waters of the Bahamas and Caribbean while retaining the stability and seaworthiness expected of a true ocean-going displacement yacht. That combination was unusual in the mid-1980s and helped demonstrate that owners no longer had to choose between blue-water capability and access to shallow cruising grounds.

Her profile remains unmistakably Dutch. Broad overhangs, generous side decks and a balanced superstructure place the emphasis on practicality and proportion rather than fashion. The navy-blue hull introduced during her 2014 refit sharpened the yacht's appearance without altering the original lines, giving this Hakvoort classic a more contemporary presence while respecting the design that made her significant in the first place.

Interior Design

Hilarium's interior reflects the values that shaped many of the finest Dutch custom yachts of the 1980s. Rather than rely on fashionable finishes that date quickly, the original design centred on exceptional joinery, rare natural materials and craftsmanship that could stand the test of time. 

Much of that work would have been worth preserving through later refits, not simply for its quality but because many of the materials are now extremely difficult to source.

Rare Japanese tamo wood forms the backbone of the interior. Once reserved for Japan's Imperial family, its dramatic grain appears throughout the saloons, companionways and accommodation, where it is paired with eucalyptus, satinwood, tulipwood and ebony marquetry. Floors combine timber with black granite and lapis lazuli inlays, while Italian marbles, hand-crafted cabinetry and bespoke furniture add further depth without overwhelming the spaces.

The layout follows the classic arrangement of its era but avoids feeling formal. Twin structural columns define the dining room without interrupting the long sightlines through the main deck, while matching buffets conceal engineering systems within the joinery. Throughout the yacht, curved cabinetry, integrated storage and carefully detailed timber mouldings soften the architecture and demonstrate the level of craftsmanship associated with Dutch custom building during this period.

Some of Hilarium's most impressive design work cannot be seen. Diana Yacht Design employed floating cabin construction, separating the accommodation from the hull structure using neoprene isolation mounts to reduce transmitted vibration and machinery noise. Combined with extensive sound insulation, the system created an unusually quiet yacht for her time, a characteristic that owners remarked upon from the day she was delivered and one that continues to distinguish her today.

Accommodation

Hilarium offers accommodation for up to 10 guests in 5 suites. She is also capable of carrying up to 8 crew onboard to ensure a relaxed luxury yacht experience.

Performance & Capabilities

Powered by twin diesel MTU (12V 396TB83) 1,499hp engines, motor yacht Hilarium is capable of reaching a top speed of 16 knots, and comfortably cruises at 14 knots. With her 43,585 litre fuel tanks she has a maximum range of 2,400 nautical miles at 14 knots.

Hilarium Yacht is not For Sale

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