Headquarters of the United Nations scheme 23–32, which was built and is what can be seen today. Along with suggestions from the other members of the Board of Design Consultants, this was developed into project 42G. This late project was built with some reductions and other modifications. Many cities vied for the honor of hosting the UN Headquarters site, prior to the selection of New York City. The selection of the East River site came after over a year of protracted study and consideration of many sites in the United States. A powerful faction among the delegates advocated returning to the former League of Nations
Headquarters of the United Nations the complex opened in 1950, were expected to take about 7 years to complete. When completed the complex is also expected to be more energy efficient and have improved security. A temporary $140 million "North Lawn Building" was built to house the United Nations' "critical operations" while renovations proceeded. Work began on May 5, 2008, but the project was delayed for a while. By 2009 the cost of the work had risen from $1.2 billion to $1.6 billion with some estimates saying it would take up to $3 billion. Officials hoped the renovated buildings would achieve a LEED Silver rating.