Yacht Island “Streets of Monaco”
“Streets of Monaco” is a roughly $1 billion superyacht concept from Yacht Island Design that has never been built. It is a 155 m SWATH vessel modelled on the principality of Monaco, complete with a go-kart circuit on deck. We found no sign of a contract, shipyard or launch as of October 2026.
| Spec | Concept figure |
|---|---|
| Vessel type | SWATH |
| Length | 155 m |
| Naval architect | BMT Nigel Gee |
| Yard | TBA |
| Guests / crew | 16 / 70 |
| Speed | 15 knots |
| Propulsion | Diesel electric |
| Estimated cost | About $1 billion (reports range to $1.1 billion) |
What is the Streets of Monaco yacht?
The world’s first billion-dollar yacht concept is modelled on the European principality and pitched as a haven for billionaires. On the top deck would sit replicas of Monaco landmarks: Hotel de Paris, the Monte Carlo Casino, Cafe de Paris, Loews Hotel and La Rascasse, plus a go-kart circuit based on the Monaco Grand Prix.
What would be on board?
The Oasis would be the main boarding point, with gardens outside a Monaco Casino replica. Inside, a central waterfall would run into a lower pool and Jacuzzi. Forward on the lower level sits the spa, with a hair and manicure salon, private massage suites, steam and sauna rooms and a relaxation lounge with a spa pool and bar.
Forward of the Cafe Bar, large windows would give underwater views, opposite a fully equipped gym. An art-lined hallway would lead to The Grand Atrium. The concept also includes multiple swimming pools, a basketball and tennis court, a dance hall, a submarine and a helipad.
Will Streets of Monaco ever be built?
It needs a client. Scott Poxon, the director of Yacht Island Design, said:
There is a notable amount of detail in place. It would need a commission in order to finalize design requirements of the client and to commence the construction.
Coverage dates mostly from 2011 to 2013, with a 2022 article still calling it a design. We found no reports of construction.
How does it compare with real yachts?
At 155 m, the concept would be shorter than the real superyacht Eclipse, which is 162.5 m (533 ft) long and was the world’s longest private yacht until Azzam was launched in 2013. The Monaco concept would instead stand out for its price tag and its detail.
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FAQ
How much would Streets of Monaco cost?
It is estimated at about $1 billion, with some reports saying $1.1 billion.
Has Streets of Monaco been built?
No. We found no contract, shipyard or launch for it as of October 2026.
How long is the yacht concept?
155 m, built as a SWATH vessel designed by BMT Nigel Gee.
Who designed it?
Yacht Island Design, with BMT Nigel Gee as naval architect.
What is on the top deck?
Replicas of Monaco landmarks and a go-kart circuit based on the Grand Prix.
Last updated: October 2026.
