One Shell Square

One Shell Square is a 51-story, 697ft skyscraper designed in the International style by Skidmore, Owings and Merrill, located at 701 Poydras Street in the Central Business District of New Orleans, Louisiana. It is the tallest building in both the city of New Orleans and the state of Louisiana, and is taller than Louisiana's tallest peak, Driskill Mountain. The building is primarily used for leaseable office space, with some retail space on the ground level. The design of the building is very similar to Houston's One Shell Plaza and Denver's Republic Plaza, both built by Skidmore, Owings and Merrill. Hines Interest is the developer of One Shell Square and Lincoln Property Company. Shell Oil Company is the building's largest tenant. Current occupancy of the building is approximately 90 percent.Construction and designOne Shell Square was built using a double tube system, with a steel core and a concrete perimeter, and opened for business in 1972. The exterior of the building is clad in Italian travertine (limestone) and bronze glass. There has been concern over the years regarding the limestone's integrity during severe weather such as tropical systems. Fortunately, these fears did not play out during Hurricane Katrina in August 2005 and the building weathered the storm with minimal damage, such as blown out windows and rain damage. The building reopened to tenants in December 2005.