A London mansion designed to look like 2 glowing glass cubes is asking $64 million. Look inside the modernist home that has 3 underground levels and a car stacker.

The home is tucked away in an alleyway in Mayfair, one of London's most affluent neighborhoods.Beauchamp Estates

• A glass-walled London mansion has hit the market for £50 million, or about $64 million, Beckie Strum reports for Mansion Global.
• The home also being offered as two separate adjoining homes for £25 million — or about $32 million — each.
• The 13,583-square-foot mansion includes two rooftop terraces, a four-vehicle car-stacking system, and a 27-foot underground swimming pool.
• It has seven levels — and three of them are underground.
• At night, the house's frosted glass walls give the impression that it glows.

A modernist mansion in London has hit the market for £50 million, or about $64 million, Beckie Strum reported for Mansion Global.

It's the most expensive new-build home ever built in the city's Mayfair district, Beauchamp Estates, the brokerage that holds the listing alongside Central Estates, told Business Insider.

The newly built home is mere steps from bustling Oxford Street and Piccadilly Circus, yet it maintains peace and privacy thanks to its secluded location in an alleyway called the Down Street Mews, according to the listing.

The $64 million glass-walled mansion sprawls across 13,583 square feet and has a whopping seven levels — and three of those are underground. The home has eight bedrooms, two rooftop terraces, a four-vehicle car-stacker, and a 27-foot underground swimming pool. With the lights on at night, the frosted glass walls give the home the appearance that it glows, the listing notes.

Take a look inside the London home.