Work is continuing on the topped-out Brooklyn Tower, a 1,066-foot residential supertall at 9 DeKalb Avenue in Downtown Brooklyn and number six on our December countdown. Designed by SHoP Architects and developed by JDS, the 93-story tower holds the title of the tallest structure in the Outer Boroughs and will yield a total of 550 residences, with 150 for purchase, as well as a 100,000-square-foot retail podium bound by Flatbush Avenue Extension to the northeast, Fleet Street to the northwest, and DeKalb Avenue to the south. The Brooklyn Tower complex also includes the refurbishing and repurposing of the landmarked Dime Savings Bank of Brooklyn, which is being incorporated into the podium. Douglas Elliman is serving as the exclusive marketing, sales, and leasing agent. Thirty percent of rentals are designated as affordable housing units, and residences for purchase start over 500 feet above street level.
Demolition work is ramping up at 343 Madison Avenue, the site of a 1,050-foot commercial supertall in Midtown East and number seven on our end-of-year countdown. Designed by Kohn Pedersen Fox and developed by Boston Properties, the 55-story structure will rise from a 25,000-square-foot rectangular site between East 44th and 45th Streets that is currently occupied by a 15-story building that formerly housed the Metropolitan Transportation Authority headquarters. The new tower will yield 832,613 square feet of office space, 5,357 square feet of retail space, and 5,357 square feet of subterranean circulation paths to Grand Central Terminal and the future East Side Access project. Rezoning plans for 343 Madison Avenue were approved by the City Council in mid November.
Excavation is continuing at 262 Fifth Avenue, the site of a proposed 1,043-foot residential supertall in NoMad and number eight on our year-end construction countdown. Designed by Russian-based firm Meganom with SLCE Architects as the executive architect and developed by Boris Kuzinez of Five Points Development under the Five Points 262 Project, LLC, the 60-story tower will yield 139,168 square feet of residential space divided into 41 residential units and 10,850 square feet of retail space on the first two floors. CM & Associates Construction Management, LLC is the general contractor for the property, which is located at the corner of Fifth Avenue and West 29th Street.
Curtain wall installation is wrapping up on The Spiral, a 1,041-foot commercial supertall at 66 Hudson Boulevard in Hudson Yards and number nine on our construction countdown. Designed by Bjarke Ingels Group and developed by Tishman Speyer, the 66-story structure will yield 2.85 million square feet of office space and is expected to cost nearly $3.7 billion. Turner Construction Company is the general contractor, Banker Steel provided the steel work, and Permasteelisa is serving as the contractor for the reflective floor-to-ceiling glass enclosure for the property, which takes up a full city block between Tenth and Eleventh Avenues and 34th and 35th Streets.
Exterior work is nearing completion on 50 Hudson Yards, a 1,011-foot-tall commercial skyscraper in Hudson Yards and number ten on our year-end countdown. Designed by Foster + Partners and developed by Related Companies and Oxford Properties, the 58-story Midtown, Manhattan supertall is the largest office building in the complex by volume at 2.9 million square feet and occupies a full-block parcel bound by West 34th Street to the north, Tenth Avenue to the east, West 33rd Street to the south, and Hudson Boulevard to the west.