Project’s other two phases to begin this year Chicago-based real estate development and investment company Speedwagon Capital Partners and locally based The Mainland Companies have broken ground on their New Heights District south of downtown and released new images of the project. A release notes the development will unfold on a primarily industrial area comprising about 20 acres and bordered by the Nashville City Cemetery, the interstate loop and CSX train tracks, just west of which sits the Adventure Science Center. Specifically, work has started on New Heights 915, a two-story Class A, 31,000-square-foot office building (pictured) to be fully occupied by co-working venture Serendipity Labs. The address is