Unsurprisingly, financial firms, as well as tech, media, and advertising companies, are driving the surge with major deals. In April, Deloitte signed a lease with Hudson Yards for 800,000 square feet of a 717-foot tower still under construction. Amazon is expanding its NYC office presence, too. In 2020, the tech giant bought the historic Lord & Taylor building. This year, the company bought a building at 522 Fifth Ave.