390 Madison Avenue stretches the possibilities of as-of-right redevelopment. Millions of pounds of steel and concrete are being removed from the base of the building, and eight new floors are being added to the top. This is being achieved without the addition of a single structural column. New volumes of space, indoor and outdoor, have been conceived around the way modern companies aspire to work. 390 Madison Avenue is doing its part to reenergize the Grand Central neighborhood.
