Smith Tower is a skyscraper in the Pioneer Square neighborhood of Seattle, Washington, United States. Completed in 1914, the 38-story, 462 ft tower was among the tallest skyscrapers outside New York City at the time of its completion. It was the tallest building west of the Mississippi River until the completion of the Kansas City Power & Light Building iā¦Smith Tower is a skyscraper in the Pioneer Square neighborhood of Seattle, Washington, United States. Completed in 1914, the 38-story, 462 ft tower was among the tallest skyscrapers outside New York City at the time of its completion. It was the tallest building west of the Mississippi River until the completion of the Kansas City Power & Light Building in 1931. It remained the tallest building on the U.S. West Coast for nearly half a century, until the Space Needle overtook it in 1962.