Rendering: 21w20.com

Steely hot Flatiron project 21 West 20th Street went penthouses out when it released its official site in September.

Now, penthouse listings are finally live for the 15-story building by Gale International, and they’re ready for their close-up.

Beyer Blinder Belle designed the facade of blackened stainless steel, glass and stone, while the interiors are by MR Architecture + Decor. Let’s run down the available maxi-units, starting with the show-stealer:

The Rooftop Penthouse, a customizable triplex asking $35 million, measures 6,910 square feet, with 2,648 square feet of exterior space. The three-bedroom, four-bathroom unit occupies the 13th to 15th floors; it’s tastefully accessorized with a three-story atrium with open stair, outdoor kitchen and barbecue station, office, lounge and pool.

21 west 20th PH3 fp

Architect David Mann gives a video run-through below:

Penthouse 2, asking $15 million, is a 4,663-square-foot four-bedroom with a 525-square-foot southern terrace and east wing master suite.

21 west 20th PH2 fp

Penthouse 1, asking $13.25 million, is a four-bedroom measuring 4,841 square feet. The “intimately zoned” apartment has twin terraces, “ample art walls” and a west wing master suite.

21 west 20th PH1 fp

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