What is the biggest house in the world?

This unique honour goes to the largest house in the world, Mumbai’s Antilia, the 37,000sqm private residence was built in 2006.

Who owns the biggest house in the world?

Owned by one of the richest men in the world, Mukesh Ambani, the 27-storey skyscraper stands 190m tall, its address visible on the Mumbai skyline and is also the most expensive private residence in the world with an estimated value exceeding $USD2 billion.

The rich build luxurious and huge houses. The uber-rich build big and expensive mansions. But what exactly defines ‘the biggest house in the world’?

There are opulent royal palaces such as the 200,000sqm Istana Nurul Iman built for the Sultan of Brunei in 1984 at a cost of $1.5 billion, the Royal Palace of Madrid at 135,000sqm, or the Buckingham Palace, relatively modest at 77,000sqm. Then there are presidential palaces, the biggest of which is the Zhongnanhai complex, the official residence of the Chinese President in Beijing, spread over an area exceeding 3.43million sqm and valued at $USD38.83 billion.

To ensure a balanced comparison, this article covers some of the biggest privately owned residences in the world belonging to individuals or families.

Are there any planned houses that could overtake the mantle of the biggest building in the world?

At the moment, not to the best of Architecture & Design's knowledge, but if you know any projects on the horizon that might overtake Antilia, please contact us.

1. Antilia, Mumbai, India

Standing 27 storeys high, the 'cool' mega mansion, Antilia, is home to Mukesh Ambani, a leading Indian industrialist with interests in oil & gas and telecom, and one of the richest men in the world with a net worth exceeding $60 billion. The biggest mansion in the world was designed for the Ambani family by the Chicago-based architecture practice, Perkins and Will, and built by Australian construction firm, Leighton Holdings. Completed in 2010, Antilia is a 190m tall building with extra high ceilings, and inside the building, six floors of car parking space is designed to accommodate 168 cars, helipads on the roof with room for three helicopters, and an entire floor for air traffic control! The building can also withstand an earthquake measuring 8 on the Richter scale.