Outdoor, Wood Patio, Porch, Deck, Hot Tub Pools, Tubs, Shower, and Rooftop The former elevator bulkhead has been re-purposed into a hot tub. Photo 1 of 17 in 8 Best Dwell Penthouses from A Hidden Penthouse Sits Atop a Historic Cast-Iron Building in New York

8 Best Dwell Penthouses

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Concealed behind a historic cast-iron facade, this Tribeca penthouse can't be seen from street level. Since strict city requirements prohibit any visible rooftop additions to historic structures, New York-based WORKac designed this three-story penthouse to be stealthily hidden when viewed from street level.

Photo Categories: Outdoor, Wood Patio, Porch, Deck, Hot Tub Pools, Tubs, Showers, Rooftop