{"id":41556,"date":"2026-04-08T17:58:38","date_gmt":"2026-04-08T15:58:38","guid":{"rendered":"https:\/\/magazine.luxus-plus.com\/?p=41556"},"modified":"2026-04-09T12:25:15","modified_gmt":"2026-04-09T10:25:15","slug":"the-agency-the-kretz-family-at-the-heart-of-luxury-real-estate","status":"publish","type":"post","link":"https:\/\/magazine.luxus-plus.com\/en\/the-agency-the-kretz-family-at-the-heart-of-luxury-real-estate\/","title":{"rendered":"\u201cThe Agency\u201d: The Kretz Family at the Heart of Luxury Real Estate"},"content":{"rendered":"

In just a few years, the Kretz family has grown from a low-key agency founded in France in 2007 in Boulogne-Billancourt to a major player in the luxury real estate market, propelled by television exposure and a well-established family strategy.<\/p>\n

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For the Kretz family, real estate is as much about storytelling as it is about selling. Long before their media exposure, the family had already laid the foundations of a strong aesthetic and narrative universe. A signature that, over the years, has evolved into a true brand.<\/p>\n

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The family before the spotlight<\/h3>\n

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It all began with Sandrine and Olivier Kretz<\/strong>, a couple with no background in real estate<\/strong>. She was a teacher who also took on interior design projects, while he worked as a sales director in a telecommunications company<\/strong>. Nothing seemed to predestine them to become figures in luxury real estate. In the late 2000s, while searching for their own home near Paris, in Boulogne-Billancourt, they decided to change direction and launched Kretz & Partners<\/strong>, with a rather bold intuition: to position themselves directly in the high-end segment<\/strong>, without going through intermediate markets. The company initially focused on castles before expanding its portfolio to include private mansions, exceptional apartments, and villas.<\/strong><\/p>\n

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At the same time, Sandrine played a key role in international development<\/strong>. Being multilingual, she built a network of foreign clients, including expatriates, investors, and high-net-worth individuals<\/strong>. Kretz & Partners\u2019 reputation was built discreetly, almost confidentially, within a circle where word of mouth carried more weight than visibility.<\/p>\n

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In the 2010s<\/strong>, a turning point came with the gradual arrival of their four sons – Martin, Valentin, Louis, and Rapha\u00ebl<\/strong>\u00a0– into the business<\/strong>. This integration deeply transformed the structure. Each brought different skills: business development, strategy, communication, and digital.<\/strong><\/p>\n

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\u00a9 <\/span>R\u00e9servoir Prod.<\/figcaption><\/figure>\n

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The agency grew in scale, but above all in identity and visibility. At a time when social media governs business promotion, its communication became more professional: polished visuals, staged properties, and careful attention to aesthetics<\/strong>. Without actively seeking the spotlight, it was already developing a distinctive visual and narrative signature, setting itself apart in a highly codified sector while highlighting the family\u2019s rise.<\/p>\n

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The TV series that changed everything<\/h3>\n

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Between 2014 and 2018,<\/strong> the company opened its doors to TV programs such as \u201c50\u2019 Inside\u201d on TF1<\/strong> and \u201cZone Interdite\u201d on M6<\/strong>, giving it a boost in visibility.<\/p>\n

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In 2020<\/strong>, the Kretz family entered another dimension<\/strong>. Previously known within a limited circle of wealthy clients, their luxury real estate agency suddenly became visible to the general public with \u201cThe Parisian Agency: Exclusive Properties,\u201d<\/strong> broadcast on TMC. Viewers discovered this discreet world of elites and the staggering prices of the most beautiful properties around the globe. The show follows the family\u2019s daily life, between negotiations, spectacular visits, and private moments.<\/strong><\/p>\n

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\u00a9 <\/span>R\u00e9servoir Prod.<\/figcaption><\/figure>\n

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\u201cAt that time, besides the family members, we had 5 sales agents, compared to 90 today, including 75 in France\u2026<\/strong> That shows how much the series was a huge business accelerator for us,\u201d explained Valentin Kretz, associate director of Kretz Family Real Estate<\/strong> and the youngest of the siblings, to Immomatin in 2023.<\/p>\n

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Very quickly, the show found its audience. In France, it attracts nearly 700,000 to 800,000 viewers for its best seasons,<\/strong> and between 500,000 and 700,000 depending on the episode. The show is also available for streaming on Netflix. In 2026, the family is filming its seventh season.<\/p>\n

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On social media, the enthusiasm is just as visible. The Kretz Real Estate Instagram<\/strong> account has more than 521,000 followers<\/strong>. While the parents each have around 80,000 followers, their sons have built very strong communities. Valentin Kretz, for example, has 347,000 followers on the platform.<\/p>\n

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Increasingly ambitious projects<\/h3>\n

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In 2025<\/strong>, Kretz Real Estate recorded 80% revenue growth<\/strong>, with over \u20ac500 million in properties sold during the year and 250 annual transactions.<\/strong><\/p>\n

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According to Alexandre Bruneau, CEO of Kretz Real Estate<\/strong>, in an interview with Immomatin in 2025, the company pays \u201c50% of revenue\u201d to its \u201cadvisors [over 130 agents], with no tiers. 30% of listings are brought in by the agency and 70% by the agents.\u201d The average sale price is \u20ac1.9 million.<\/p>\n

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The CEO also revealed the agency\u2019s ambitions. \u201cRegarding international expansion\u2014beyond our wholly owned subsidiary in Spain<\/strong> led by Louis Kretz and his 17 real estate advisors\u2014we will open our first licenses in Belgium and Switzerland<\/strong>, with entry fees and revenue-based royalties.\u201d The brand also plans to expand to Mauritius<\/strong>. \u201cAs for France, we want to double our number of agents over the next 18 months to support our growth. [\u2026] If we reach, in the longer term, around 30% market share, compared to 10% today, we\u2019ll be satisfied.\u201d<\/p>\n

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@kretzrealestate<\/a> Apr\u00e8s l\u2019annonce de l\u2019ouverture de notre tout premier flagship, d\u00e9couvrez enfin le concept que l\u2019on a construit avec @labelexperience Cet espace de 230 m\u00b2 n\u2019est pas qu\u2019une simple agence physique, c\u2019est un lieu de vie, d\u2019\u00e9change et de partage. Chaque pi\u00e8ce s\u2019inspire de l\u2019un des membres de la famille Kretz, en refl\u00e9tant ses voyages, ses go\u00fbts, ses souvenirs et exp\u00e9riences. C\u2019est une immersion dans l\u2019univers des Kretz. D\u2019ailleurs, l\u2019\u00e9l\u00e9gance Art d\u00e9co, clin d\u2019\u0153il \u00e0 la maison familiale de Boulogne, en est le fil rouge esth\u00e9tique. Stay tuned : on vous d\u00e9voile tr\u00e8s bient\u00f4t les prochaines pi\u00e8ces en d\u00e9tail. #kretzfamilyrealestate<\/a> #lagence<\/a> #luxuryrealestate<\/a> #flagship<\/a> \u266c son original – Kretz Real Estate<\/a><\/section>\n<\/blockquote>\n