Attessa IV Yacht Specs: Size, Engines & Technical Highlights
Luxury yachts symbolize prestige, craftsmanship, and the pinnacle of maritime engineering. Among the most iconic vessels in the world, the Attessa IV Yacht stands out as a masterpiece of design and opulence. This article provides a comprehensive look at the yacht, its history, ownership, interior, price, and current location, while also exploring its connection to Dennis Washington yacht ownership.
Table Of Content
- 🌊 Introduction to the Attessa IV Yacht
- 👤 The Attessa IV Yacht Owner
- 💰 The Attessa IV Yacht Price
- 🛋️ The Attessa IV Yacht Interior
- 📍 The Attessa IV Yacht Location
- 🏷️ The Attessa IV Yacht for Sale
- 🚤 The Dennis Washington Yacht Legacy
- ⚓ Technical Specifications of the Attessa IV Yacht
- 🌟 The Prestige of the Attessa IV Yacht
- ❓ FAQs About the Attessa IV Yacht
- 1. Who is the Attessa IV Yacht owner?
- 2. What is the estimated Attessa IV Yacht price?
- 3. What makes the Attessa IV Yacht interior unique?
- 4. Where is the Attessa IV Yacht location usually found?
- 5. Is the Attessa IV Yacht for sale?
- 📝 Conclusion
🌊 Introduction to the Attessa IV Yacht
The Attessa IV Yacht is one of the most recognized superyachts in the world. Originally built in 1999 by Evergreen Shipyard in Taiwan, the vessel underwent an extensive refit under the ownership of American industrialist Dennis Washington. The transformation turned the yacht into a floating palace, redefining luxury standards in the yachting industry.
With a length of approximately 100 meters (about 330 feet), the yacht is among the largest privately owned vessels. Its sleek exterior lines, combined with a lavish interior, make it a true marvel of modern engineering and design.
👤 The Attessa IV Yacht Owner
The Attessa IV Yacht owner is Dennis Washington, a billionaire businessman from Montana, USA. Washington made his fortune in construction, mining, and marine industries, and is well-known for his passion for yachts.
Washington purchased the vessel in 2007 and invested heavily in a complete redesign. The refit was carried out by Washington Yachting Group, with the goal of creating one of the most luxurious and technologically advanced yachts in existence.
His ownership of the Dennis Washington yacht collection, which includes other vessels, highlights his dedication to maritime excellence. The Attessa IV Yacht owner is often praised for turning a relatively unknown vessel into one of the most admired yachts in the world.
💰 The Attessa IV Yacht Price
The Attessa IV Yacht price is estimated to be in the range of $250 million to $300 million. This valuation reflects not only the original construction cost but also the extensive refit that transformed the yacht into a modern marvel.
Factors influencing the Attessa IV Yacht price include:
- Size and dimensions: At 100 meters, it ranks among the largest private yachts.
- Interior design: Custom luxury interiors with rare materials and bespoke craftsmanship.
- Technology: Advanced navigation, stabilization, and entertainment systems.
- Prestige: The yacht’s reputation and association with Dennis Washington add to its value.
While the exact Attessa IV Yacht price is not publicly disclosed, it remains one of the most expensive privately owned yachts in the world.
🛋️ The Attessa IV Yacht Interior
The Attessa IV Yacht interior is a showcase of elegance and innovation. Designed with meticulous attention to detail, the interior features a blend of modern luxury and timeless sophistication.
Highlights of the Attessa IV Yacht interior include:
- Grand salons with panoramic views and custom furnishings.
- Luxurious suites for guests, each with en-suite bathrooms and unique décor.
- Owner’s suite that rivals five-star hotel accommodations.
- Spa and wellness facilities, including massage rooms and a fully equipped gym.
- Cinema room with state-of-the-art sound and visual systems.
- Art collections curated by Dennis Washington, adding cultural depth to the yacht.
The Attessa IV Yacht interior is designed to provide ultimate comfort while maintaining a sense of exclusivity and refinement.
📍 The Attessa IV Yacht Location
The Attessa IV Yacht location often changes, as the vessel travels across the globe. It has been spotted in prestigious yachting destinations such as:
- The Mediterranean (Monaco, Cannes, and Sardinia).
- The Caribbean (St. Barts and the Bahamas).
- The Pacific Northwest, near Washington’s home base in the United States.
The Attessa IV Yacht location reflects Dennis Washington’s lifestyle, combining business, leisure, and philanthropy. Wherever it docks, the yacht attracts attention from enthusiasts and the media alike. Tollycraft Boats for Sale: Prices, Models & Buying Guide (2026)
🏷️ The Attessa IV Yacht for Sale
Currently, there is no official listing of the Attessa IV Yacht for sale. However, speculation often arises in the yachting community about whether Dennis Washington might eventually sell the vessel.
If the Attessa IV Yacht for sale were to happen, it would undoubtedly be one of the most significant transactions in the luxury yacht market. Given its estimated value of $250–300 million, only a handful of buyers worldwide could afford such a purchase.
The rarity of yachts of this size and prestige makes the potential Attessa IV Yacht for sale a topic of great interest among collectors and investors.

🚤 The Dennis Washington Yacht Legacy
The Dennis Washington yacht collection is a testament to his passion for maritime excellence. Beyond the Attessa IV Yacht, Washington has owned other notable vessels, each reflecting his commitment to innovation and luxury.
His yachts are not just symbols of wealth but also platforms for philanthropy. Washington has used his yachts to support charitable causes, host fundraising events, and promote cultural initiatives.
The Dennis Washington yacht legacy continues to inspire the yachting industry, setting benchmarks for design, refit, and ownership.
⚓ Technical Specifications of the Attessa IV Yacht
- Length: 100 meters (330 feet).
- Builder: Evergreen Shipyard, Taiwan.
- Refit: Washington Yachting Group (2007–2011).
- Owner: Dennis Washington.
- Guests: Accommodates up to 36 guests.
- Crew: Approximately 20–30 crew members.
- Features: Spa, cinema, gym, art gallery, helipad, and multiple lounges.
🌟 The Prestige of the Attessa IV Yacht
The Attessa IV Yacht is more than just a vessel—it is a symbol of ambition, craftsmanship, and luxury. Its transformation under Dennis Washington’s vision has made it a benchmark in the superyacht industry.
From its breathtaking Attessa IV Yacht interior to its ever-changing Attessa IV Yacht location, the vessel continues to captivate enthusiasts worldwide. Whether or not the Attessa IV Yacht for sale becomes a reality, its legacy as one of the most iconic yachts ever built is secure.
❓ FAQs About the Attessa IV Yacht
1. Who is the Attessa IV Yacht owner?
2. What is the estimated Attessa IV Yacht price?
3. What makes the Attessa IV Yacht interior unique?
4. Where is the Attessa IV Yacht location usually found?
5. Is the Attessa IV Yacht for sale?
📝 Conclusion
The Attessa IV Yacht is a floating masterpiece, embodying luxury, innovation, and prestige. Under the stewardship of Dennis Washington, it has become one of the most admired yachts in the world. From its opulent Attessa IV Yacht interior to its impressive valuation, the vessel remains a symbol of ultimate success and maritime excellence.
Whether admired for its design, speculated upon for its Attessa IV Yacht price, or tracked for its Attessa IV Yacht location, the yacht continues to inspire awe. The legacy of the Dennis Washington yacht collection ensures that the Attessa IV Yacht will remain a benchmark in the world of superyachts for years to come.