Enterprise Plaza (also known as 1100 Louisiana) is a 55-story, skyscraper at 1100 Louisiana Street in downtown Houston, Texas The headquarters of Enterprise Products is located in the Enterprise Plaza. Enterprise Plaza was completed in 1980 by Hines. It was sold in 1985 to Capitol Guidance Corporation which sold it again to National Office Partners Limited Partnership (NOP), a joint venture between Hines Interests Limited Partnership and the California Public Employees Retirement System (CalPERS). Hines Real Estate bought the tower in January 2000. Enterprise Plaza is an office building located in the heart of Houston's energy and financial corridor. It stands at 756 ft (230 m) tall with 55 stories. It was the tallest building in Texas from 1980 until 1982 when it was surpassed by the JPMorgan Chase Tower. Major tenants Enbridge Enterprise Products Forest Oil Corporation King & Spalding Credit Suisse See also List of tallest buildings in Houston List of tallest buildings in Texas List of tallest buildings in the United States References External links 1100 Louisiana at Hines Interests Limited Partnership Images of Enterprise Plaza Office buildings completed in 1980 Skyscraper office buildings in Houston Hines Interests Limited Partnership Skidmore, Owings & Merrill buildings Buildings and structures in Houston