Trust, knowledge and discretion

SPG One, specialised in Luxury real estate


At SPG One, we are committed to mobilising all of our expertise and resources in pursuit of your endeavour. Our partnership with Christie’s International Real Estate gives us access to an exclusive real estate market. We offer tailor-made service and unrivalled expertise to meet your high-end real estate needs. Put your trust in SPG One and discover a world of exceptional opportunities.


The minimum we can offer you is unlimited commitment and absolute discretion.



Our values



The domain of luxury real estate is a world unto itself. Reserved for the most exclusive clientele, it requires utmost sensitivity and absolute discretion. At SPG One, we take the time to understand who you are, learn of your desires and follow your lead, whether to unearth that rare gem you have perhaps spent years searching for or to sell that splendid home filled with your fondest memories.



Thanks to our expertise in the local and national markets, we can give you access to remarkable properties that are only shown to a very select group of clients.


When it comes to sales, we will put all of our skill to work for you in order to help you find the perfect buyer for your cherished property.
Certain properties are marketed and sold confidentially at the request of the owner, so please feel free to contact us in that regard.


Trust, knowledge and discretion are the three core values of SPG One.

Exclusive affiliate

It was natural that we became a partner with Christie's. We share the same passion for objects of unique value.

Exclusive Christie's partnership

250 years of experience in the luxury business

Founded by James Christie in 1766, Christie's is a leading auctioneer worldwide, with a historic presence in the ancient and modern art markets. Building on its success, the company expanded its activities and, in 1995, created Christie's International Real Estate, a company specializing in luxury real estate. Combining centuries of experience with a network of selected brokers, this subsidiary serves a demanding clientele in search of exceptional properties.



The worldwide authority on luxury real estate

In almost 30 years, Christie's International Real Estate has established itself as a global leader in the field of prestige properties. Through its network of 138 affiliates in over 46 countries, the company offers a diverse range of luxury real estate, from sumptuous seaside villas and historic chateaux to elegant city apartments and spacious wine domains.

With a portfolio valued at over $100 billion, Christie's International Real Estate offers solutions tailored to the needs of every client. Its team of experienced real estate marketing professionals guarantees optimal visibility for each property, through targeted and innovative advertising strategies.

In short, Christie's International Real Estate has established itself as a world leader in luxury real estate, offering quality service and top-of-the-range solutions to a wealthy clientele in search of exceptional properties.



SPG One | Christie's International Real Estate 

Since 2005, SPG One has enjoyed an exclusive partnership with Christie's International Real Estate in French-speaking Switzerland and Gstaad, giving you access to its entire portfolio and a wide range of offers available worldwide.

This union, guided by common values and shared aspirations, reflects the professional excellence and know-how of our two entities.



Besson Immobilier, SPG One | Christie's International Real Estate's exclusive partner in Verbier.

Exclusive partnership with Besson Immobilier

SPG One | Christie's International Real Estate & Besson Immobilier


An exclusive partner of SPG One | Christie's International Real Estate, Besson Immobilier was founded in 2004 by Rachel Besson Gasser, following in the footsteps of the Vittel SA real estate agency founded in 1979 by Jacques Vittel.


Over the years, Besson Immobilier has established itself as a leader in property sales and rentals in Verbier.


The Besson agency is always striving to meet the emerging needs of its customers, in an ever-changing societal environment. Their team is deeply rooted in a passion for Verbier, its impeccable slopes, mountain trails and authentic moments. This respect for the destination and its unique ambience is reflected in every service they offer.

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