The newly-converted (and almost all sold) apartments at 404 Park Avenue South in the building known as Huys (pronounced “house”) have been stealing the limelight from the buzzy Walker Tower condo conversion, where the sale of a $50.9 million penthouse set a Downtown NYC record. The word–and Piet Boon, the architect/designer behind the hot new property–is Dutch, as is the project’s developer, Kronenberg Groep. Of the building’s 58 units, 52 are already spoken for, including one of three penthouses that hit the market recently. Currently available is #PH17A, a 2,983 square-foot three-bedroom apartment asking $9,850,000. The clean-lined modern penthouse with original beams and eleven-and-a-half-foot ceilings features two private loggias, impressive city views through floor-to-ceiling casement windows, a 42-foot-long living room, an open floor plan, wide plank oak floors, and the European finishes you’d expect in a Dutch-designed kitchen.

Building amenities include a roof terrace with a kitchen, a fitness center, a 24-hour doorman and concierge, a children’s playroom and plenty of storage. The NoMad neighborhood is one of Manhattan’s most talked-about new residential hot spots, offering Madison Square Park and some of the city’s top dining, nightlife, shopping and cultural establishments within a few blocks and convenience to all transportation.

Approaching the–literally–glass ceiling of penthouse living is an apartment at another standard-setting 21st century residence, 200 11th Avenue (pictured). Though it may be beyond the reach of most buyers–the building’s only available unit is asking $23,000,000–#PH1 may be among the city’s be the most impressive apartments. Recently redesigned by the notable Dutch architecture firm MVRDV, the 3,598 square-foot three-bedroom duplex offers 80 feet of frontage over the Hudson River and protected views through full-height windows. You’ll also find 22-foot ceilings, 668 feet of exterior space on two large terraces and two elements of architectural innovation that no other building in NYC can claim: an en-suite “sky garage” elevator into which you can drive your car and have it parked outside your apartment in 60 seconds, and the newly-created “sky vault,” a mobile, glass-enclosed vertical chamber that slides between the apartment’s two levels, functioning as a personal elevator with a glass staircase, a “disappearing” vault or a display gallery.

Amenities at the Annabelle Selldorf-designed 14-unit building include a fitness center overlooking the Hudson and a 24-hour attended lobby; the building’s West Chelsea neighborhood is one of the city’s most desirable, near the High Line park and a seemingly endless collection of galleries, shopping, dining and cultural destinations. It may be a well-known celebrity-magnet, but the neighborhood retains its classic NYC vibe as an important arts district.