Companies that have moved from the Central Business District to Upper Hill include Citibank, and in 2007 Coca-Cola began construction of their East and Central African headquarters in Upper Hill, cementing the district as the preferred location for office space in Nairobi. The largest office development in this area is UAP Tower, completed in 2015 and officially opened for business on 4 July 2016. It is a 33-storey tower 163 meters high. The World Bank and International Finance Corporation (part of the World Bank Group) are also located in Upper Hill at the Delta Center, Menegai Road. Earlier on, they were located in the Hill Park Building and CBA Building respectively (both also in Upper Hill), and prior to that in View Park towers in the Central Business District.