Creating value together, since 1990

For over 30 years, Sienna Real Estate (formerly L’Etoile Properties) has been active with international institutional investors across Europe, USA, Asia and the Middle East, in the investment and management of real estate assets.

Sienna RE carries out the most efficient investment structure, advising clients from the acquisition stage, later providing asset and real estate management services and until the sale process.

With offices in Amsterdam, Paris, Madrid, Hamburg, Frankfurt, London and South Korea, the company currently manages €7 billion AuM.

In 2021, we became the real estate vertical of Sienna Investment Managers: the alternative assets platform of Groupe Bruxelles Lambert; bringing an opportunity to accelerate our development in investment products and geographic locations.

Ownership Structure

The L'Etoile way

Our values


We do what we love, and love what we do.

Work Ethic

We see our clients’ business as ours.


Working smart to create long-term relationships.


Amazing professionals achieving amazing things.

Our reason

Become a local real estate partner for our clients, by strategic assessment based on a profound understanding of their expectations and a vast background experience on local markets.

ESG culture

We stand for the belief that ESG is a key component of today’s real estate from both an operational and an investment point of view.


To preserve our planet on the long term.


To care about every human involved.


To follow fair and transparent rules and values.

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