Mise à jour 3 juin 2024 par Redak
Monaco, known for its wealth and exclusivity, is set to unveil the Mareterra project, an unprecedented feat of engineering and real estate development. This project, which made it possible to gain six hectares on the Mediterranean Sea, is intended for an ultra-rich elite and is praised for its technical prowess and its environmental approach.
A Green and Elegant Neighborhood
Scheduled to be inaugurated at the end of the year several months in advance, Mareterra promises to transform the principality with a green and refined district. Despite the 2,800 workers still at work, the work is entering its final phase.
A Unique and Ambitious Project
Launched in 2015, this project worth more than two billion euros is incomparable, even to achievements in the Middle East, due to the depth of the structure which goes down to 50 meters and the seismic and environmental constraints. The extension rests on 18 enormous concrete boxes and a sand embankment consolidated by more than a thousand piles 45 meters high.
Respect the environment
Rigorous measures have been put in place to minimize the environmental impact, including the movement of 500 m² of Posidonia meadows and the treatment of polluted sediments. Developments on the caissons encourage colonization by marine life. Despite initial concerns, no major degradation has been observed, although criticism of the lack of information persists.

An Innovation Laboratory
Guy-Thomas Levy-Soussan, managing director of Anse du Portier, underlines the efforts and costs to guarantee the success of the project, which has become a true laboratory of good practices in the face of rising sea levels.
A Commercial Success
The district, designed by Valode and Pistre Architectes with the collaboration of Renzo Piano, includes five buildings and ten villas, all already sold. Prices, reaching up to 120,000 euros per m², demonstrate the appeal of this luxurious development. The Monegasque government also benefited from 576 million euros in VAT and public infrastructure as an extension for the Grimaldi Forum.
A New Pedestrian and Attractive Neighborhood
This new district, mainly pedestrian, will be a new attraction with a tree-lined hill, a seaside promenade and artistic installations, such as an Alexander Calder mobile. The green spaces, notably the thousand trees transplanted from a Tuscan nursery, add to the elegance of the place. An accessible box offers a unique view of the sea, combining architecture and nature.
