The trio of flat rectangular fins that form the crown of 425 Park Avenue are now fully enclosed in metal paneling as the 897-foot-tall office skyscraper gets closer to completion in Midtown East. The 47-story structure is designed by Norman Foster of Foster + Partners and developed by L&L Holding Company LLC with Adamson Associates as the architect of record.
Tectonic stopped by the Park Avenue site to see how much the exterior has progressed since YIMBY’s December update, when the structural framing of the fins had recently been completed.
The back side of the building has been almost entirely covered, with the exception of the intermittent section between the bottom of the fins and the reinforced concrete core walls.
The construction crane still stands against the main western elevation and the exterior hoist remains attached to the southern profile. A metal framework that will hold the glass panels for the top two levels has steadily been assembled, meeting in the centerline on the edge of the floor plates. Previous renderings show this portion of the edifice clad in slightly more transparent glass.
Meanwhile, work is progressing on the final exterior metal panels running up the height of the structure’s main columns. Loads are transferred through these critical members and the diagonal steelwork seen in front of the setbacks. These sections of the building will be clad in large triangular and diamond-shaped glass panels and contain multi-story amenity spaces.
Construction on 425 Park Avenue will likely finish sometime next year.