The project includes additions and renovations to the Worthington Johnson Athletic Center, the principal facility for indoor athletics at Choate Rosemary Hall. The handsome Georgian building contains a skylit multi-use "cage" with a running track, the basketball arena, nine squash courts, weight and wrestling rooms, and locker rooms. Over the years space provided for these functions had become overcrowded and in need of renewal.

The school's main needs included a new fitness and wellness center and trainers' suite, an activities space for dance rehearsal, exercise and aerobic groups. The project scope also included the conversion of existing American squash courts and addition of International courts, and various additions and renovations to expand lockers, equipment and athletic department staff offices.