The Insider: Penthouse Addition Tops Greenpoint Loft


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It took generations for the dream of a penthouse addition with skyline views and lushly landscaped outdoor space to take shape above a three-story mixed-use building on a gritty avenue. Once a shoe factory, the vintage building had been owned by the same family for decades. As the neighborhood evolved, one of the younger family members reached out to the sustainable architecture, landscape, and urban design studio Thread Collective.

The Brooklyn- and Newburgh, N.Y.-based firm renovated the entire building, creating a 5,000-square-foot duplex for their client across the existing top floor and a new rooftop addition in the form of a minimalist black rectangle. The homeowner’s two floors are tied together by a dramatic skylit stair. “It’s a classic yellow brick building with pretty arched windows, so the modern box allows the cornice to still read across the front,” said Gita Nandan, a principal at the firm. “Once we popped up the top floor as a penthouse, we had the ability to have windows on three sides.”

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