Seventh at Westlake Tower was a proposed 31 story, 426 ft (130 m) skyscraper in the Denny Triangle neighborhood of Seattle, Washington. The lower 16 floors would have been used as office space, and the top 17 floors would have been 184 residential spaces. The project has since been cancelled. Amazon.com received approval in late 2012 to develop the block for office space. The office building located on the block, Doppler (also known as Amazon Tower I), opened on December 14, 2015.