Sanno Group, an Japan based company, has announced that they have purchased the Waikiki Galleria office building from The Mills Group. Located on the corner of Kalakaua Avenue and Royal Hawaiian Avenue, the Waikiki Galleria is a 15 story building and contains approximately 250,000 sq ft of space. The purchase price was not disclosed. According to a press release by the Sanno Group, their company plans to hold on to the property as a long-term investment.