A week after YIMBY first revealed renderings of 343 Madison Avenue, we’re back with a full rendering that further outlines the design and massing. The 925,630-square-foot Midtown East supertall is designed by Kohn Pedersen Fox and is being developed by Boston Properties.
Taking the place of the former Metropolitan Transportation Authority headquarters, the lot with frontage along Madison Avenue is bound by East 44th and 45th Streets. According to the Environmental Impact Statement, the development will rise 1,050 feet. Using a 30 floor area ratio (FAR), the structure will contain 55 stories with 5,357 square feet of ground-floor retail and 832,613 square feet of office space. The remaining 87,660 square feet will be used for circulation space and mechanicals. A no-action development can be built as-of-right with a 15 FAR and rise 472 feet. The 30 stories would contain 6,144 square feet of ground-floor retail, 411,540 square feet of office space, and 59,915 square feet of mechanicals and circulation space.
343 Madison Avenue will also have a new entrance for the East Side Access. Components include a double-height corner entry space along East 45th Street and Madison Avenue, three escalators, a staircase, an ADA elevator, and MTA back of house with a street entrance.