The Fonseca Center for Athletics and Arts is the school's community center.  This new 78,000 sf interdisciplinary building is organized to foster interaction between students with diverse interests, by maximizing transparency and visibility throughout the building.  

New athletic spaces include four squash courts, a six-lane competition swimming pool, a state-of-the-art fencing studio, a fitness center, a suspended indoor running track, a gymnasium with a competition basketball court, two practice courts, two volleyball courts, and spaces for dance and aerobics.  Arts spaces include an experimental theatre, a music room, graphic arts studios and an art gallery. There is a café, lounges on two floors, and places for serendipitous gathering.

The building is carefully integrated with the surrounding outdoor spaces including an athletic field to the south, an entry courtyard on the north, and an exterior courtyard on the west adjacent to the new café and the pre-existing gymnasium. The LEED Gold building is heated and cooled by an efficient mechanical system and is energized by two arrays of photovoltaic panels. Every interior space has access to views and natural light.