Bayer Properties built the massive shopping center The Summit, and it looks like it could keep building across 280.

The Birmingham firm has placed 125 acres of land across from the Summit under contract.

A Bayer spokeswoman said she can't yet speak to what will be go in the location, which currently houses offices used by AT&T.

"We certainly understand the sensitivity around development in this location, and our goal is to create a project that will be complementary to The Summit and surrounding areas and will be a true amenity for the community," David Silverstein, principal at Bayer Properties, said in a statement.

AT&T spokesman Lance Skelly said the employees that work at that location will be relocated to 1876 Data Drive in Hoover, which is a multi-story data center office facility with free parking

"The building is currently under-utilized," Skelly wrote in an email. "Like any business, we need to work consistently to manage our operations and best utilize available office space, and the Data Drive location provides adequate space."

Birmingham's Bayer Properties manages the Summit, which is at the crossroads of Interstate 459 and U.S. 280. It total more than 1 million square feet of retail, restaurants and office space. Bayer Properties is also managing the $66 million redevelopment of the downtown Pizitz building.