Completely new, state-of-the-art building systems include a central building automation system and HVAC, plumbing, electrical, fire and life safety systems. 17 fully modernized passenger elevators and 2 freight elevators ensure efficient service. Double-paned windows maximize heating and cooling efficiency. Building amenities include a full-service concierge and messenger center for the convenience of tenants. A complete range of floor sizes offers full floor identity opportunities to tenants with varying space requirements. Multiple setbacks provide generous amounts of natural light and magnificent views looking north up Park Avenue, east to the river and beyond and south to Grand Central Terminal. Newly designed air handling systems allow complete tenant control of air conditioning and ventilation.