Midtown Tower is a mixed-use skyscraper in Akasaka, Minato, Tokyo. Completed in 2007, it is the tallest of the six buildings within the Tokyo Midtown complex, at 248.1m, and was the tallest office building in Tokyo until 2014.ConstructionLocated at the center of the Tokyo Midtown development, Midtown Tower is the tallest of the six buildings located within the complex. At 248.1m, it was the tallest building in Tokyo from the completion of primary construction in January 2007 until the completion of Toranomon Hills in 2014. Its official grand opening was on March 31, 2007, though the offices had been open since February. The building was designed by Chicago-based architectural firm Skidmore, Owings and Merrill with help from Nikken Sekkei Ltd. and built by the Takenaka and Taisei Corporations.FacilitiesAs a mixed-use facility, Midtown Tower's 54 floors are utilized in different ways. Several conference rooms occupy the entirety of the 4th floor. The 5th floor is the home of the Tokyo Midtown Design Hub, a gallery and space for exhibitions, collaborations and discussions by designers. Tokyo Midtown Medical Center is located on the 6th floor. This medical facility is the first Japan-based collaboration with Johns Hopkins University. Unlike similar supertall skyscrapers in the area such as Roppongi Hills Mori Tower, Midtown Tower's top 54th floor is not a visitors' observation deck. Instead, the floor houses building components and maintenance facilities.