Empire State Building
2010s to present

Starting in 2009, the building's public areas received a $550 million renovation, with improvements to the air conditioning and waterproofing, renovations to the observation deck and main lobby, and relocation of the gift shop to the 80th floor. About $120 million was spent on improving the energy efficiency of the building, with the goal of reducing energy emissions by 38% within five years. For example, all of the windows were refurbished onsite into film-coated "superwindows" which block heat but pass light. Air conditioning operating costs on hot days were reduced, saving $17 million of the project's capital cost immediately and partially funding some of the other retrofits. The Empire State Building won the Leadership in Energy and Environmental Design (LEED) Gold for Existing Buildings rating in September 2011, as well as the World Federation of Great Towers ' Excellence in Environment Award for 2010. For the LEED Gold certification, the building's energy reduction was considered, as was a large purchase of carbon offsets. Other factors included low-flow bathroom fixtures, green cleaning supplies, and use of recycled paper products.

On April 30, 2012, One World Trade Center topped out, taking the Empire State Building's record of tallest in the city. By 2014, the building was owned by the Empire State Realty Trust (ESRT), with Anthony Malkin as chairman, CEO, and president. The ESRT was a public company, having begun trading publicly on the New York Stock Exchange the previous year. In August 2016, the Qatar Investment Authority (QIA) was issued new fully diluted shares equivalent to 9.9% of the trust; this investment gave them partial ownership of the entirety of the ESRT's portfolio, and as a result, partial ownership of the Empire State Building. The trust's president John Kessler called it an "endorsement of the company's irreplaceable assets". The investment has been described by the real-estate magazine The Real Deal as "an unusual move for a sovereign wealth fund", as these funds typically buy direct stakes in buildings rather than real estate companies. Other foreign entities that have a stake in the ESRT include investors from Norway, Japan, and Australia.

A renovation of the Empire State Building was commenced in the 2010s to further improve energy efficiency, public areas, and amenities. In August 2018, to improve the flow of visitor traffic, the main visitor's entrance was shifted to 20 West 34th Street as part of a major renovation of the observatory lobby. The new lobby includes several technological features, including large LED panels, digital ticket kiosks in nine languages, and a two-story architectural model of the building surrounded by two metal staircases. The first phase of the renovation, completed in 2019, features an updated exterior lighting system and digital hosts. The new lobby also features free Wi-Fi provided for those waiting. A 10,000-square-foot (930 m) exhibit with nine galleries opened in July 2019. The 102nd floor observatory, the third phase of the redesign, reopened to the public on October 12, 2019. That portion of the project included outfitting the space with floor-to-ceiling glass windows and a brand-new glass elevator. The final portion of the renovations to be completed was a new observatory on the 80th floor, which opened on December 2, 2019. In total, the renovation cost $160 million or $165 million and took four years to finish.

A comprehensive restoration of the building's mooring and antenna masts also began in June 2019. Antennas on the mooring mast were removed or relocated to the upper mast, while the aluminum panels were cleaned and coated with silver paint. To minimize disruption to the observation decks, the restoration work took place at night. The project was completed by late 2020.
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