Incorporated into its original design was an area designated for future expansion of the arena. Expansion of the upper bowl would raise the seating capacity of the arena to over 15,000. In 2011, the Spokane Public Facilities District became concerned the NCAA may tighten its criteria and require a true minimum of 12,000, with no allowance for seats lost due to tournament infrastructure. In early 2012, the Spokane Public Facilities District had "Measure 1" put on the April ballot, which was proposing to extend 0.1% sales tax and a 2% room tax to pay for a 91,000-square-foot addition to the Convention Center and other projects, including adding 750 seats to the Arena.