The Alamodome, a great combination of both a convention center and a dome, opened on May 15, 1993. Owned and operated by the City of San Antonio, the large venue accommodates assemblies, tradeshows, sporting events and more. The Alamodome was the home of the NBA World Champion San Antonio Spurs from the years of 1993 to 2002 and the Valero Alamo Bowl takes place here every year.

In preparation for the 2018 Final Four, the City of San Antonio has undertaken a $43 million expansion and renovation of the 22-year-old Alamodome to improve media amenities and the fan experience. Upgrades include a 26,000 square foot media center, improvements to their four locker room facilities, a multi-purpose workroom, expanded concourses with added concessions, outdoor terraces at the club level, an updated ribbon board, high-definition corner boards and upgraded lighting to accommodate the return of basketball events. The Alamodome improvements will "allow San Antonio to compete with other major cities for events that bring significant economic impact to our community," San Antonio Sports President and CEO Russ Bookbinder said in a letter to the nonprofit's board members.

The design-build team of Turner, Marmon Mok and Populous is delivering the fast-track project without disruption to the facility's operations and event's schedule. Chamberlin has completed hot fluid-applied waterproofing below-grade for the facility and is currently installing an air barrier system. The project is on track to wrap up mid 2017.