The Cobb-Marietta Coliseum and Exhibit Hall Authority has selected a team of locally based firms to manage the expansion and renovation of the convention center.

Impact Development Management will serve as the authority’s representative and project manager for the overhaul, Rule Joy Trammell + Rubio will serve as the project architect and Holder Construction will be the construction manager. The development team plans to break ground on the project in fall 2025, with completion slated for early 2027.

The Cobb Galleria Centre was originally built by the authority in 1994. The facility currently totals 320,000 square feet, including 144,000 square feet of exhibit space, a 25,000-square-foot ballroom, 20 meeting rooms and four executive boardrooms. Also on the campus is Galleria Specialty Shops, an enclave of small retail shops that currently houses tenants including HOKA Shoes and a Subway kiosk.

The master plan for the expansion project includes:

• Demolition of Galleria Specialty Shops, as well as the second floor meeting rooms;
• A new junior ballroom
• The addition of 13,000 square feet of meeting space

The Coliseum Theater in downtown Seattle, one of the city’s historic landmarks, is headed to auction.

The 36,904-square-foot retail building, which is listed on the National Register of Historic Places, is going up for auction next month, according to the Puget Sound Business Journal. Newmark has listed the property with a starting bid of $2 million, and Ten-X Commercial will be the auctioneer. The seller is a company based in Iowa that bought the property in 2007 for $13 million.

Located at 1508 5th Avenue, The Coliseum was originally built as a state-of-the-art cinema in 1916 and later became a Banana Republic store. The 16,200 square feet of leasable space is currently fully occupied by Actualize AiR, a gallery and event space, and an espresso coffee shop. The Coliseum is situated in the heart of downtown, close to Nordstrom’s flagship store, Pike Place Market, the Washington State Convention Center and Amazon’s world headquarters.