The Vallon Sainte Dévote

The Malachite Jewel in Monaco: A unique complex

An extraordinary project at the crossroads of the Moneghetti and Vallon Sainte-Dévote districts

11 September 2025 - 3 min

The Malachite Jewel is a distinctive real estate development located at the meeting point of the Moneghetti and Vallon Sainte-Dévote districts. It involves the demolition of four existing villas to make way for a private complex including three villas and an elegant residential building.

This new development will be connected by a large central glass atrium. It will have a total of 11 levels: 7 residential floors and 4 basement levels. The basements will house technical facilities and parking.

A prime address for an exclusive lifestyle

The main entrance will be located on Rue Louis Auréglia, providing secure and discreet access to this prestigious residence. The location offers a peaceful residential setting while remaining close to amenities and transport, ensuring connectivity to the Principality’s main points of interest. It is an ideal place for those seeking both serenity and convenience.

Tailor-made luxury: architecture, utilities, and smart-home technologies

A refined architectural signature that respects Monaco’s landscape

Led by architect Christian Curau, the Malachite Jewel project has been designed as a true work of art. It strikes a subtle balance between Monegasque architectural heritage and contemporary aesthetics, blending harmoniously with its natural and urban surroundings. Inspired by the soft lines of the Riviera and the noble tones of minerals, this residential complex stands out through its discreet elegance and visual coherence.

The glazed central hall, the true backbone of the project, connects the four “gems” that make up the development. More than just a passageway, this hall is conceived as a luminous and fluid transition space, bathed in natural light, enhancing circulation while creating a sense of unity. It opens onto hanging gardens and unobstructed sea views, strengthening the dialogue between interior and exterior—a hallmark of Monaco’s residential standards.

The façades combine noble materials, natural colors, and geometric volumes, with a touch of elegant postmodernism. Every architectural detail reflects a commitment to durability, quality, and discreet luxury, in line with the expectations of a demanding, often international, clientele.

This attention to landscape integration, spatial fluidity, and aesthetic signature makes the Malachite Jewel far more than a mere real estate development: it is a new benchmark of residential luxury in Monaco, where architecture becomes a true art of living.

High-level technical expertise

The engineering firm INGETEC is responsible for utilities, smart-home systems, thermal and acoustic management, as well as all technical facilities. These include plumbing, heating, electricity, fire safety, and a swimming pool. The total budget is estimated at €50 million (excluding tax).

A unique opportunity with a forward-looking vision

A confidential… yet promising program

The Malachite Jewel has not yet been listed on major public platforms. It is an “off-market” program, meaning it will only be accessible through specialized channels.

You can read our article on off-market properties in Monaco for further details.

Strong heritage value

In Monaco’s stable and highly sought-after property market, a project like this holds significant potential for appreciation. The combination of a strategic location, contemporary architecture, and high-end technical features makes it an exceptional investment.

Our advice at LiveIn.mc: An opportunity not to be overlooked.

Good to know: The Malachite Jewel project not only enhances its luxury residences but also contributes to revitalizing the neighborhood. Situated between Moneghetti and Vallon Sainte-Dévote—areas previously more discreet—the surroundings are now becoming significantly more attractive.

Having a solid strategy to anticipate price increases is crucial, whether for new or existing properties. Securing an investment in an improving environment is essential.

FAQ – The Malachite Jewel in Monaco

What is the Malachite Jewel?

A private residential project composed of three villas and one building, connected by a central glass atrium with elevator, located between Moneghetti and Vallon Sainte-Dévote.

How many levels does the complex have?

It spans 11 levels: 7 residential floors and 4 technical/parking basements.

Who is it designed for?

For clients seeking top-level comfort, discretion, and an exceptional lifestyle in the heart of Monaco.

Who is responsible for the technical aspects?

INGETEC oversees technical management, with a budget estimated at €50 million (excl. tax).

How can I access this program?

Contact Livein.mc's partner agencies, a portal specializing in prestige real estate, which can connect you with the agents appointed for this exclusive project.

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