A Swiss Chateau Designed by Eiffel Tower Architect!

What happens when Haute Couture Royalty commissions an architect of the Eiffel Tower? You get Chateau de Promontoux. Built in 1896 for Jean-Philippe Worth, son of the pioneer of Haute Couture, this 14,000-square-foot Lake Geneva estate showcases the genius of Stephen Silvestre. Look closely at the façade. An arched stone pillar distinctly mirrors the iconic structural curves supporting Paris' most famous landmark. It is a brilliant nod to Belle Époque engineering, seamlessly blending industrial structural ambition with classic Swiss lakeside romance. Spread across four floors, the recently restored interior offers plenty of space to accidentally lose your guests or your thoughts. With eight bedrooms, six bathrooms, a quiet library, and no fewer than four ballrooms, you have enough venues to host a different waltz for every season. The layout encourages a life of effortless, grand-scale entertaining, supported by multiple kitchens that can easily handle everything from midnight snacks to multi-course banquets. The exterior is equally theatrical. Nine private acres of mature gardens are bordered by a peaceful river, ensuring total privacy. For those who prefer arriving by water, the estate boasts its own private harbor, reputedly the largest on Lake Geneva, making the short commute to Geneva's city center a delightful yacht trip. Whether you are enjoying morning coffee on a panoramic balcony overlooking the Alps or docking your boat in your own backyard, living here feels less like a daily routine and more like a permanent, beautifully designed retreat.