Oak Tower, also called the Bell Telephone Building, is a 28-story

skyscraper A skyscraper is a tall continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least or in height, though there is no universally accepted definition. Skyscrapers are very tall high-ris ...

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Hoit, Price & Barnes Hoit, Price & Barnes was a prominent Kansas City architectural firm in the early 20th century. It designed several skyscrapers and mansions including three of the current ten tallest buildings in Kansas City; the Kansas City Power and Light Bui ...

, a local firm that conceived many of Kansas City's landmark structures, designed the building in association with I.R. Timlin as the headquarters of the Bell Telephone Co.'s newly consolidated Southwestern System. The ground was broken at Eleventh and Oak Streets in 1917, but due to shortages of manpower and materials during the

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, construction was delayed and was not completed until 1920. The new building served as Southwestern Bell's general headquarters for only a year before the company moved its main office to

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. Thereafter the tower served as the headquarters of Southwestern Bell's operations in Missouri. The tower was originally 14 stories (185 feet), without any setbacks, but the fast-growing telephone company soon required more space. An addition completed in 1929 doubled the tower's height and made it the tallest building in Missouri until the Kansas City Power & Light Building surpassed it in 1931. Oak Tower's top half was built with Haydite, the first modern structural lightweight concrete, which had recently been invented and patented in Kansas City by Stephen J. Hayde. The tower's 1929 expansion was the first major project to use the new building material, and it allowed the addition of fourteen new stories, six more than would have been possible using conventional concrete. The building's contractor, Swenson Construction Co., also built several other landmark Kansas City buildings including the Kansas City Power & Light Building,

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and the

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. On January 11, 1965, during a snowstorm, a single-engine airplane crashed into the 28th story of the building at the corner facing Oak Street and 11th Street, killing all four people on board. Oak Tower's original

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facade was covered in white

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when it was sold in 1974. In 2021 Oak Tower was sold.

Data center

Today Oak Tower is one of the key fiber transit buildings for Kansas City and houses a Tier II data center. In 2013, the colocation data center is operated by Netsolus and is carrier neutral. In September 2018, the Tier II data center, operated by Netsolus, is and is home to several key transit and telecommunications providers including

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, and Zayo. Netsolus also operates data centers in Phoenix, Denver, and Omaha. Founded in 2000, Netsolus is located in Oak Tower at Suite 1640.

References

{{Buildings in Kansas City, Missouri timeline Skyscraper office buildings in Kansas City, Missouri Office buildings completed in 1920 Downtown Kansas City