Turett Collaborative Architects, the architecture firm that designed the condo with a steel slide in the East Village, has recently completed another innovative space, this one a triplex penthouse on the Upper East Side. A spokesperson for the firm tells us “the attention to detail on this [project] is unusually high — even by our standards.” This was driven by the client, who was interested in unique solutions rather than compromises.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The homeowner traveled with architect Wayne Turrett to a remote quarry in the Swiss alps to hand pick the stone for the double-height wall around the 15-foot-wide fireplace. The soaring, meandering triple-height stair has laser-cut steel supports and translucent resin treads that cantilever like stiff diving boards.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The kitchen counter has an integrated double sink. The appliances are built into the wall.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The second floor, overlooking the living room.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The stairway from the second to third floor.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

Stair tread detail. They cast warm, orange-tinted shadows through the halls.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

Top floor.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

A bathroom, but not the master.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The master bedroom.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

The master bathroom shower and seamless tub is in an all glass room. The glass is clear, but can turn opaque for privacy at the flip of a switch.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

Here the opaque shield is “on” for privacy.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

Water trickles down from a fixture in the ceiling.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

A trough sink with two faucets. The toilet, which is attached to the wall, seems to float.

73rd Street Penthouse by Turett Collaborative Architects in main architecture  Category

A detail of the faucets in the trough sink.

Photos by Travis Dubreuil.