The connected facilities of Lucas Oil Stadium offer an additional 183,000 square feet (20,000 m2) of exhibit space and 12 meeting rooms.

Completed in 1972, the original project included one ballroom, three exhibition halls, and 23 meeting rooms encompassing 160,000 square feet (15,000 m2).

[7] As part of the expansion, an underground walkway along the west side of Capitol Avenue was built to connect this new portion of the facility to Lucas Oil Stadium.

In addition to its space, the Indiana Convention Center now possesses 49 loading docks, seven drive-in ramps, and three food courts.

[10] In September 2020, Indianapolis City-County Council unanimously approved a $155 million bond measure to build a 50,000-square-foot (4,600 m2) ballroom, 93,500 square feet (8,690 m2) of meeting and pre-function space, and two high-rise hotels developed by Kite Realty, totaling 1,400 rooms.