Atlanta-based Cox Enterprises said Friday it will build a 19-story building at its Sandy Springs campus, a significant move amid a sluggish commercial real estate market.

The company, which owns The Atlanta Journal-Constitution, plans to use the nearly 578,000-square-foot building to house the corporate staff of its Cox Communications subsidiary. It comes on the heels of a tower completed earlier this year that houses technology operations for Cox Communications.

Construction on the building is scheduled to begin in early 2013 and in 2015 workers will move in.

Cox Communications’ corporate operations are now located at a nearby facility on Lake Hearn Drive, and the site’s future is still being determined.

Marybeth Leamer, a Cox Enterprises executive vice president, said the new building will allow “enhanced collaboration and help us prepare for future needs and growth.”

The tower would be one of only a few large office buildings completed in Atlanta in the years after the recession zapped the market, leading to higher vacancy and unemployment rates.