The Mareterra development is the most ambitious real estate project in the history of the French Riviera. This €2 billion eco-district reclaimed 6 hectares of land directly from the Mediterranean Sea. Fully completed and integrated into the city, Mareterra represents the ultimate standard for modern luxury and sustainable living in 2026.
If you are evaluating luxury property investments or planning a relocation, understanding this new district is important. Here is your complete guide to the Mareterra development.
The Vision and The Architects
Mareterra was designed to be a pedestrian paradise. The project name combines the words for “Sea” and “Land”. It seamlessly connects the existing coastline of the Larvotto district with the Mediterranean.
Monaco assembled a historic team of international architects to achieve this vision. The master plan was guided by Renzo Piano and Denis Valode. The collection of exclusive villas features custom designs from legendary architects like Tadao Ando and Norman Foster.
The lush landscape was meticulously designed by Michel Desvigne. Residents enjoy a highly secure, private environment. You can read more about the exceptional local security in our breakdown of how safe Monaco is.
The Real Estate Portfolio
Mareterra offers a strictly limited supply of ultra-prime properties. The entire development features only 110 apartments, 4 townhouses, and 10 private waterfront villas.
- Le Renzo and Les Jardins d’Eau: These apartment buildings offer exceptional scale. Apartments range from 350 to over 600 square meters. They provide world-class amenities like private spas, fitness centers, and wine rooms.
- The Townhouses: Offering up to 1,560 square meters across multiple floors, these homes are a genuine alternative to villa ownership.
- The Villas: These are the absolute crown jewels of Monaco real estate. Each villa includes a private pool and garden. Only six of these rare villas sit directly on the waterfront.
Before purchasing a property of this scale, buyers must understand the local legal framework. We strongly recommend reviewing our guide on the hidden costs of buying real estate in Monaco to prepare your budget.
Sustainability and Eco-Luxury
Mareterra is Monaco’s first true eco-district. Half of the entire project surface is dedicated to green and pedestrian spaces. The district features 800 mature trees and thousands of Mediterranean plants.
The engineering behind this luxury is entirely sustainable. The district utilizes a seawater thalasso-thermal loop for highly efficient heating and cooling.
Additionally, 4,500 square meters of solar panels generate nearly 40% of the district’s energy. The new eco-marina provides excellent facilities for yacht owners. If you plan to keep a vessel nearby, you should consult our Mooring in Monaco 2026 cost guide.
The 2026 Market Impact and Lifestyle
The delivery of Mareterra has completely transformed Monaco property prices. As early buyers place their units on the resale market, values across the Principality have surged. The Larvotto district has now become the most expensive neighborhood in the country.
Families relocating to the Principality will need to plan their everyday expenses alongside their property investment.
You can explore the baseline financial expectations in our Cost of Living in Monte Carlo guide.
Parents will also want to review the best international schools in Monaco to secure spots for their children.
Finally, American investors planning to buy property in this new district can find step-by-step visa instructions in our Monaco Residency Requirements for US Citizens.
Secure Your Access to Mareterra Properties
Off-market resales in Mareterra require absolute discretion and a highly connected local network. Our team helps foreign investors navigate the ultra-prime market and secure exclusive viewings.
Mareterra Development Summary
| Feature | Project Details |
| Total Project Cost | €2 Billion |
| Land Reclaimed | 6 Hectares (15 Acres) |
| Total Apartments | 110 Units |
| Total Townhouses | 4 Units |
| Total Villas | 10 Units |
| Green Space | 50% of the total surface area |
| Master Architects | Renzo Piano and Denis Valode |
Frequently Asked Questions
What is the total cost of the Mareterra project?
The project cost approximately €2 billion to complete. It was privately funded by a consortium of established Monegasque families and investors.
How many properties are available in Mareterra?
The highly exclusive development includes just 110 apartments, 4 large townhouses, and 10 private luxury villas.
Can foreign investors buy property in Mareterra?
Yes. Foreigners have the exact same rights as citizens to purchase property on the free market in Monaco.
When was Mareterra completed?
The project was officially inaugurated in late 2024. All final residential handovers and public spaces were fully completed during 2025.
Who designed the Mareterra district?
The master plan was led by Renzo Piano and Denis Valode. Specific private villas were designed by architectural legends, Tadao Ando and Norman Foster.