A Look at the Absurd Size of the Largest House in the World

Think about your house or apartment. Is it 1,000 square feet? 2,000 square feet? 5,000 square feet? Maybe even 10,000 square feet?  Chances are it’s still about 200 times smaller than the largest house in the world, if you can call it that.

To find the largest house in the world, we have to travel all the way to South Mumbai, India. Named Antilia, this private home built in 2010 is the largest in the world coming in at 400,000 square feet. It also happens to be a 27-story skyscraper.

Believe it or not, the entire 27 floors are entirely used as residential space by Mukesh Ambani, the richest man in india and his 4 family members. A staff of 600 is required to maintain the residence 24 hours a day.

Not only is it the largest “home” in the world, it is also the most expensive residential property in the world coming in at over 1 billion USD.

Image Source: Wikimedia

The building was designed by a Chicago based architectural firm called Perkins and Will and built by an Australian construction company called Leighton Holdings.

The skyscraper home stands at over 550-feet tall and each of the 27 floors was built with extra-high ceilings. When you consider the average ceiling height, the building could’ve had up to 60 floors with standard floor construction.

But what could one family of 5 use 27 floors for? On the roof, there is enough space for 3 helicopters to land on the array of helipads. Right below these helipads, there is a floor reserved for air traffic control management. Below that sits the main residence portion of the structure. Moving down from here, there are maintenance floors, guest apartments, a swimming pool and spa, outdoor gardens, a 50 seat cinema, and of course at the bottom, there are 6 floors of parking with room for over 200 cars.

Image Source: Concerning Reality

Not only is the home excessive in opulence, but it also boasts some impressive engineering. It can withstand an earthquake up to an 8 on the Richter scale. The entire structure was also designed to conserve energy as much as possible, using passive ventilation and using the garden for cooling.

When the passive energy efficiency isn’t enough, there’s also a massive “ice room” used to keep the home colder than any other building in the city.

All this goes to say that the world’s biggest house is quite expensive and perhaps a little unnecessary. Valuations place it at over 1 billion dollars, but the Indian media has speculated that it cost $2 billion to construct. This estimate was verified when the director of marketing for the architecture design firm that designed Antilia confirmed the cost in an interview with Forbes magazine.

So, the largest house in the world is probably a lot bigger than where you’re living right now, but don’t feel too bad… at least you don’t have to pay its electricity bill.

Trevor is a civil engineer (B.S.) by trade and an accomplished writer with a passion for inspiring everyone with new and exciting technologies. He is also a published children’s book author and the producer for the YouTube channel Concerning Reality.


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