Charlotte, N.C.-based Insite Properties has broken ground on 3TWENTY3, a 120,000-square-foot structure which should be complete in spring 2020. The space at 323 Second St. S.E. is being transformed into a five-story office building with a four-level parking garage.

The building will be built on what is now the back half of The Glass building and a parking lot. The front of the Glass building — currently occupied by Augustiner, The Bluegrass Grill & Bakery and Paradox Pastry — will continue to be used as retail space.