After buying adjacent apartments in a 19th century tenement building in Brooklyn, Alex Gil and Claudia DeSimio created a multi-level space that included a rooftop addition clad in Cor-Ten steel. While the interior is both modern and whimsical, the couple also made an effort to incorporate many of the building's original features that were revealed during the renovation process. Photo 2 of 5 in Duplex Renovations by William Harrison

Duplex Renovations

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After buying adjacent apartments in a 19th century tenement building in Brooklyn, Alex Gil and Claudia DeSimio created a multi-level space that included a rooftop addition clad in Cor-Ten steel. While the interior is both modern and whimsical, the couple also made an effort to incorporate many of the building's original features that were revealed during the renovation process.