A long-awaited second phase of a mixed-use development near the Chesterfield-Powhatan line is moving forward, with a Tennessee-based builder lined up to construct its apartments.

Site work is underway for the final phase of Winterfield Place, a development by Midlothian-based Riverton Associates straddling Winterfield Road at its intersection with Huguenot Trail and Robious Road.

Riverton, led by developer Casey Sowers, has been planning a mixed development of 200 apartments, 22 detached houses and up to 75,000 square feet of commercial space within about half of the 50-acre site on the west side of Winterfield Road, completing the project that started years ago with the Winterfield Place shopping center across the street.