The most expensive and luxurious house today probably is the “Villa Les Cèdres” which is located in Saint-Jean-Cap-Ferrat, a prestigious area on the French Riviera. And here are a few details about this luxury property.
Cost. Villa Les Cèdres was estimated to be worth around $400 million, making it one of the most expensive residential properties in the world.
Location. Situated on a lush 35-acre estate overlooking the Mediterranean Sea, the villa offers breathtaking views and a sense of privacy and exclusivity. But, as usual, such luxury homes mostly are empty because billionaires buy them just for a few days in a year.
Size. The mansion spans approximately 18,000 square feet (1,670 square meters) and features extensive landscaped gardens.

Luxury Features. The house boasts a range of luxurious amenities. Including multiple bedrooms and bathrooms, grand reception rooms, ballroom, library, chapel, wine cellar, and a swimming pool. But that’s not all. Additionally the interiors are adorned with exquisite details, high-end finishes, and fine craftsmanship.
Historical Significance. Villa Les Cèdres was originally built in 1830 and this house has a rich history. It was once owned by the Belgian King Leopold II and has been meticulously preserved and restored over the years.
Gardens. The extensive gardens surrounding the property feature rare and exotic plants, including 14,000 different species, manicured lawns, and a vast array of trees, including impressive cedar trees that give the villa its name.
Unique Features. The villa also includes a panoramic terrace, a private beach, a helipad, and a guest house.

It’s important to note that the luxury real estate market is dynamic, and new properties may have emerged since my knowledge cutoff. Additionally, the cost and availability of properties can vary depending on factors such as location, market conditions, and recent sales.
Present owner of this luxury property is Rinat Akhmetov, ukrainian tycoon. Akhmetov is a friend of ukrainian ex-president Viktor Yanukovych, whose luxury house is already here. That property is comic luxury as well. Even if you have money you can have no taste.