Buckingham Palace Tops $4.9B, World's Most Expensive Home

As of September 26th, 2025, the Buckingham Palace in London remains the most expensive home in the world, valued at a staggering $4.9 billion. The 18th-century royal residence, which has been the home of King Charles III, is a marvel in itself, boasting an impressive 775 rooms, 188 staff rooms, including 52 royal and guest bedrooms, 92 offices, 78 bathrooms, and 19 staterooms.

Meanwhile, India's richest man, Mukesh Ambani, resides in the equally impressive Antilla, a 400,000 sq ft, 27-story private skyscraper situated in Mumbai's Cumballa Hills. Designed by Chicago-based architects Perkins and Will, the earthquake-resistant building is engineered to withstand an 8.0-magnitude quake. In addition to its residential spaces, Antilla also features three helipads, a six-story car garage, a private cinema theater, and a snowroom to beat the heat.

These two lavish homes, one a historic royal palace and the other a modern architectural marvel, stand as testaments to the wealth and opulence of their respective owners, showcasing the extremes of luxury living in the 21st century.