A triplex penthouse at One West 67th Street. Photo: Corcoran

How did the lofty penthouse get knocked off its perch?

  • Buyers have to work out why a ‘penthouse’ has four or five floors above it, and navigate terms like ‘triplex penthouse’ and ‘sky loft’
Topic |   International Property

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A triplex penthouse at One West 67th Street. Photo: Corcoran
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