Monaco Water Apartments
Credit: Getty Images

With some 38,000 residents spread over less than one square-mile, the city-state of Monaco is the most densely populated country in the world.

But intrepid developers with a vision for new luxury apartments may have found a creative solution to their land shortage: build into the sea.

Authorities from Bouygues Construction are planning a ‎€1-billion luxury development in the Mediterranean Sea along the coast of the Riviera principality. The nearly 15-acre complex is set to feature a marina, public parks, a Japanese garden, a seaside promenade, and several blocks of luxury apartments.

Luxury apartments will rise out of the sea by Monaco.
Credit: Courtesy of Bouygues Construction

“We are very pleased to have the opportunity to take part in the development of the Principality of Monaco by way of this new land reclamation project,” Bouygues Construction CEO Philippe Bonnave said in a statement, noting that the project would aim for “the highest ambitions with respect to sustainable development and environmental protection.”

The development will be constructed by filling 85-foot tall watertight chambers filled with some 11,000 tons of cement, Global Construction Review reported. These chambers, also called caissons, are often used for construction of piers and other sea projects.

Monaco is perhaps best known to visitors for its casinos, tax havens and of course, the U.S.’ own starlet, Grace Kelly who became princess of the principality after marrying Prince Rainier III in 1956.

With the locally-sourced Michelin-star restaurant Elsa in Monte-Carlo, as well as attractions such as quaint chapels and 15th-century frescoes, this French-speaking paradise offers more than the glitz that first meets the eye.