Opened in 1978, this building, originally called 1 Houston Center, has 46 floors with
Class A office space and is located at 1200 block of McKinney Street. The building is 678 feet (207 m) tall.
LyondellBasell maintained its Houston offices at 1 Houston Center until March 2025, when the company relocated its corporate headquarters to Williams Tower, situated in the Uptown District of Houston. When Lyondell was an independent company, its headquarters were in 1 Houston Center. As of January 2012, the Lyondell/LyondellBasell operation has been at 1 Houston Center for 25 years. In 1999
Merrill Lynch Capital Markets expanded its lease to . In 2000
Ernst & Young occupied of space on five floors in 1 Houston Center. When 5 Houston Center opened in 2003, Ernst & Young pulled its operations from 1 Houston Center and moved them into 5 Houston Center, leaving of space in 1 Houston Center vacant. Two of the five floors that Ernst & Young left behind were leased to other firms by July 2003.
Cozen O'Connor opened an office in 1 Houston Center in 2004. On November 22, 2005,
Alain Robert, a French
rock and
urban climber nicknamed "
Spider-Man", was arrested attempting to climb the building. In 2008 the law firm
Fish & Richardson opened an office in 1 Houston Center on October 1, 2008. As of 2010
Haynes and Boone has an office in 1 Houston Center. As of January 2012, the tower was given its current name, the LyondellBasell Tower. Around that time, LyondellBasell renewed its lease for of space in 1 Houston Center. ==2 Houston Center==