The project will include more than 45,000 square feet of mixed-use space, including a food hall called Switchman Hall.
The project will transform more than 30,000 square feet at the sprawling office complex.
Section between Washington Park and Donald Lee Hollowell Parkway will complete 6.5 miles on the western half of multi-use trail loop.
Local resident Gonzalo de Aristegui is behind the new Seattle-style Teriyaki shop with plans to open a location in Sandy Springs and Decatur next.