39 W 23rd Street Unit: PH21 Flatiron, NY 10010

Penthouse 21 at Flatiron House is an exceptional full-floor residence offering 3,194 square feet of refined interiors and 222 square feet of irrigated loggias for greenery. A private elevator opens to a gracious gallery and a dramatic corner living and dining room surrounded by floor-to-ceiling windows and sweeping skyline views.

The windowed kitchen features custom oak and ribbed-glass cabinetry, Calacatta Lincoln marble, brass detailing, premium appliances, a generous island and pantry. Four bedrooms include a serene corner primary suite with a custom dressing room, walk-in closet and spa bathroom with heated marble floors and a six-foot soaking tub.

Additional features include custom motorized shades, bespoke millwork, central climate control, a Sunlighten infrared sauna, abundant storage and a dedicated laundry room with vented dryer. Flatiron House offers a doorman, concierge, fitness center, residents' lounge and landscaped gardens moments from Madison Square Park. The building also has a second, discreet entrance on quiet West 24th Street.

Some photographs have been virtually staged.