Proposal in works to expand Columbia Metropolitan Convention Center The City of Columbia could be seeing a bigger convention center, more hotels, apartments, and a parking garage in the coming years. Author: Tai Wong Updated: 6:44 PM EDT July 9, 2021 COLUMBIA, S.C. — The City of Columbia could be expanding the Columbia Metropolitan Convention Center. The expansion is expected to bring over five billion dollars to the city. "This will be a catalyst for huge development for years to come," said Carl Blackstone, President/CEO of the Columbia Chamber. Blackstone said the Columbia City Council and the Richland County Council will vote on whether this expansion will be allowed.