101 South Hanley (also known as the Hanley Corporate Tower and Interco Tower) is a tall modern office building located on 101 South Hanley Road in Downtown Clayton, Missouri. It was built in 1986 and has 19 floors. When it was built it was the 3rd-tallest building in Clayton, as of January 2026 it is the 6th-tallest building in Clayton. Tenants include CoStar, First American Title Insurance Company, and Meridian Land Group.
The building has 360,505 rsquare feet of rentable space.
In 2015, Oculus was selected to lead the redesign and rebrand of the tower by KBS, who bought it in 2014 from Duke Realty for $62.25 million dollars. The enhancements were expected to cost $6.5 million dollars.
See also PNC Center (Clayton, Missouri) The Sevens Building List of tallest buildings in Clayton, Missouri
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