Knightsbridge Properties unveils cast iron house; 2014 Pritzker Prize Winner Shigeru Ban's first historic conversion features collection of duplex residences crowned by modern floating penthouse addition

According to Knightsbridge Properties, a Tribeca-based real estate company committed to design-led redevelopment of historic and landmarked buildings in New York, Berlin and London, Cast Iron House has launched sales. The interiors of this historic cast iron building have been reimagined by world-renowned Japanese architect Shigeru Ban, who was recently awarded the 2014 Pritzker Architecture Prize. Located at 67 Franklin Street, the building contains 11 uniquely crafted duplex condominium residences and 2 expansive penthouses, all of which offer soaring double-height living spaces. "Cast Iron House is a neoclassical landmark in Tribeca, which combines the ethereal architecture Shigeru Ban is known for within a historic cast iron façade," said Jourdan Krauss, CEO and founder of Knightsbridge Properties. "We are delighted to present this rare combination of quality craftsmanship, style and design in one of Manhattan's most sought after residential neighborhoods." Built in 1882, the building is a registered New York City Landmark known for its striking cast iron façade. At the start of the conversion process, Knightsbridge Properties removed and then shipped over 4,000 pieces of its ornamental cast iron façade to a foundry in Alabama, where each piece underwent a meticulous and accurate recasting to restore its original design elements and detailing. "We liken the architectural concept for Cast Iron House to a ship in a bottle," said Ban, who, together with his partner and executive architect Dean Maltz, conceived this unique concept. "The original cast iron façade is the bottle, while the newly built-out modern interior, which has been completely reimagined, is the ship." Cast Iron House's 11 contemporary duplex residences offer three, four and five bedrooms with cathedral-style double-height living room spaces ranging from approximately 17 to 25 feet. Kitchens, living areas and bedrooms feature matte finished white lacquer cabinetry custom designed by Shigeru Ban. Upon entry through a private elevator landing, homes open into spacious kitchen, dining and living areas with select white oak flooring. Kitchens contain a full suite of integrated Gaggenau appliances, Dornbracht fixtures, and Bianco Dolomiti marble islands and countertops. The upper level of each residence offers complete privacy with bedrooms separated from main living areas. Master bedrooms feature en suite bathrooms with radiant heated marble slab floors, Corian vanities, Rosa Aurora marble walls and deep soaking bathtubs. Both four and five-bedroom duplex penthouse residences crown Cast Iron House and capture expansive city views. Designed to integrate with the existing structure, the building's penthouse addition appears to be floating from street level through the use of a steel cantilevered Vierendeel truss. Similar to the building's interior residences, both penthouses feature open kitchens and living areas with double-height ceilings. Telescoping glass walls open to connect the interiors with the surrounding terraces, creating an uninterrupted expanse from inside to outside with over 1,400-square feet of private outdoor space. Bedrooms are located on the upper level of each residence, with graciously configured master bedroom suites.