Luxury yachts in the marina of Saint Tropez, French Riviera Launch and building facades in the Old Town of Saint Tropez. Photo: Andia/UIG via Getty Images

With a US$1 billion price tag, is this the world’s most expensive house?

Features include 50-metre swimming pool and 35-acre botanical park

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Luxury yachts in the marina of Saint Tropez, French Riviera Launch and building facades in the Old Town of Saint Tropez. Photo: Andia/UIG via Getty Images
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