Le Portier at a glance
Le Portier, also called Portier Cove or Anse du Portier, is the residential district of Monaco built on land reclaimed from the sea. It belongs to the Larvotto ward and stretches between Port Hercule and the Grimaldi Forum. The project opened in December 2024 under the commercial name Mareterra.
For the architecture, the gardens and the lifestyle of the district, read our guide to Mareterra. This page focuses on the name, the history of the site and the practical questions of a buyer.
Le Portier, Anse du Portier, Mareterra: what each name means
Three names circulate for the same place, which causes confusion in searches and in listings.
A listing with the address « Anse du Portier » therefore points to an apartment or a villa of Mareterra, and a search for « Le Portier » leads to the same district.
The history of Le Portier : from the cove to the district
The extension of Monaco on the sea took more than two decades, and the timeline shows the stop-and-go of a project of this size.
The extension is the eighth that Monaco has carried out on the sea, and it adds about 3% to the territory of the Principality. The 18 caissons, built as concrete boxes and floated into place, form the base on which the district stands.
The stop of 2009 is part of the story of the district. Prince Albert II ordered the project to stop because of the state of public finances, and the works resumed in 2011 once new funding was secured. The caissons then followed one another until July 2019, which explains why the district opened in December 2024 rather than in 2014, the date of the first target.
What the district offers
Homes
The district sits in the ward described in our guide to Larvotto and gathers 110 apartments in multi-block buildings, 10 villas and 4 townhouses. The two seafront residences are Le Renzo, on the Port Hercule side, and Les Jardins d'Eau. Listings of the district show a 3-bedroom apartment of Le Renzo with sea views, a 4-bedroom apartment of Les Jardins d'Eau and a villa of 4,893 m², all offered at a price on request.
Public spaces and marina
The district counts three hectares of public space, gardens, a seafront promenade and a small marina, the Port du Petit Portier. Shops and restaurants sit at the ground level of the buildings.
Environment
The programme planted 800 trees and installed 200 electric vehicle charging stations. The builders transplanted 384 m² of Posidonia oceanica, a protected Mediterranean seagrass, to the Larvotto Marine Protection Area about 200 metres away.
Prices and notable sales at Le Portier
Market sources quote about €100,000 to €120,000 per m² for Mareterra, roughly double the Monaco average of €57,569 measured by IMSEE in 2025. The table shows how the district compares with its surroundings.
A listing of Le Renzo offers 528 m² of living space and 151 m² of terraces, with 3 bedrooms and sea views, at €57,750,000 according to Petrini, or about €109,400 per m² (our calculation). In 2024, Bloomberg reported the purchase of a five-floor penthouse of about 2,500 m² for €471 million, a value the buyer's holding company did not confirm. Read more on Mareterra real estate prices and on the development of real estate in Monaco.
Sales of new property carry 20% VAT, and the apartments sold off-plan before delivery now change hands as resales. The price of a home in the district depends on the building, the floor, the terraces, the orientation and the services, so a price per m² is an order of magnitude and never a quotation. Request a valuation from an agency for the home you target.
Buying or renting at Le Portier
Buyers and tenants reach the district through three routes.
- Resale of an apartment or a villa: owners sell through private introductions, and many transactions remain confidential
- Rental: rents in Mareterra reach up to €150,000 per month according to Euronews, and supply stays rare
- Off-market access: an agency with a network of owners presents homes before any public listing
At Balkin, our team combines local expertise since 2005 with the Knight Frank global network. Browse our apartments for sale in Mareterra and our apartments for rent in Mareterra, discover the apartment Renzo in our selection, and ask about off-market properties in Monaco. Arrange a private consultation to define your brief: surface, floor, terraces, parking and timing.
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