Centerbrook sited the new middle school between the upper and lower schools, at the back edge of the campus. The middle school is near the upper school to take advantage of its library, athletic facilities, and cafeteria. This siting unifies campus buildings, preserves campus open space, and keeps school buildings at the rear of the property, away from neighbors. It also mitigates the impact of drainage to nearby properties. A simplified traffic flow through the site improves safety, both on and off campus.

The new middle school building is dark masonry with only two stories to fit comfortably on campus and present an unobtrusive profile to the surrounding neighborhood. The building's simple form houses classrooms, laboratories, art studios, music rooms, a large multi-purpose room, and a media café.