Signature Tower is a projected mixed-use skyscraper which has been approved for construction in Nashville, Tennessee, United States. Groundbreaking was originally scheduled for 2007, but has been delayed. When completed, it will contain condominiums, office space, a Kimpton-brand Hotel Palomar Nashville, and retail space. The building will have 70 stories and will stand in height, making it one of the tallest buildings in the United States and the tallest in the Americas outside of New York and Chicago, surpassing Bank of America Plaza in Atlanta, Georgia by .
The Signature Tower is being developed by Giarratana LLC at an estimated cost of US$250 to 370 million. The building's physical address will be 505 Church Street, located on the southwest corner of Church and Fifth Avenue North, which was for many years the location of a Cain Sloan department store. Giarratana announced on July 18, 2006 that it had slated Turner Construction Co. of New York to complete the project.
Construction of the building is slated to begin once half of the 400 residential apartment units have been sold. As of late December 2007, 102 of the 400 units had been presold. The Federal Aviation Administration filed a notice on October 25, 2007 stating that the proposed design was too tall and would pose a hazard to aircraft. The agency recommended that the tower not exceed , or less than half its proposed height. However, Giarratana has stated that no design changes are planned, and the Metro Nashville Airport Authority has lent its support to the construction project, saying they will look into ways to alter flight patterns.