1977“Phase One” Dimond Center opens to the public as a modest neighborhood Shopping Center covering 180,000 square feet. It includes a Pay'n Save, a Safeway, and several smaller shops in between.
1982"Phase Two" expansion is completed to the west and north adding an additional 230,000 square feet, which includes a Lamonts department store and a Sports West.
1986“Phase Three” the Professional Office Tower is added to include a bowling alley, ice chalet, athletic club, food court, two levels for retail, and four levels for professional offices. Dimond Center is now the largest Shopping Center in the state. Transit Center facilitates transportation from all over Anchorage to Dimond Center.
1996A vertical expansion: the roof is raised and a 9 movie theater is added on to the second floor.
1999The original Pay'n Save space is repurposed to accommodate GAP and Old Navy stores.
2002Joining Dimond Center is Alaska's first Best Buy, replacing Alaska Marketplace grocery store (previously Safeway). Dimond Center Hotel opens its doors.
2013The west end is under expansion with the purpose of ushering in new fashion and dining opportunities. Dimond Center now has 728,000 square feet and continues to be the largest enclosed Shopping Center in Alaska.