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A 21,000 square foot triplex penthouse located atop the former Sony Building is expected to hit the market for a whopping $150 million, which would make it the most expensive listing ever in NYC. The former Sony Building, located at 550 Madison Avenue, is being transformed into condominiums by the Chetrit Group and will boast 96 luxury apartments. The penthouse will occupy the 33rd, 34th and 35th floors and feature 8 bedrooms and 8 full & 10 half bathrooms.

Another triplex penthouse, this one located atop 520 Park Avenue, is expected to hit the market for $130 million.

*The most expensive condo ever sold in NYC was a penthouse condo at Gary Barnett’s One57 that sold for a whopping $100.5 million .