Maya Lin has been commissioned to design a 20,000-square-feet urban mansion in New York's Tribeca neighborhood. The five-story proposal, seen first on Tribeca Trib, aims to replace a 1980s mixed-use building on 11 Hubert Street. If approved, the of metal, glass and limestone building would rise 70-feet and house five bedrooms, 11 bathrooms, a dog room, wine closet, screening room, landscaped courtyard, 5,000-square-foot fitness center, basement, garage and more.