St. Albans School lies within the Cathedral Close that surrounds Washington National Cathedral, originally master planned by Frederick Law Olmsted, Jr. The visual and symbolic relationships between the School, Cathedral, and Capitol Hill were crucial to his vision. SOM’s design for Marriott Hall reinforces the primacy of the Olmsted landscape and the site’s principal icon, Washington National Cathedral. The project, which includes 35,000 square feet of new space and an equal amount of renovated space, seamlessly interconnects previously disparate internal floor levels and external public spaces. The extension also creates better physical and visual connections to the Cathedral, enhances views to central Washington, improves potential circulation sequences, and interconnects potential interior and exterior spaces. Four processional pathways link upper and lower levels and create a continuous circulation system that unifies the campus. The new spaces include classrooms, faculty offices, athletic fields, and a performing arts theatre.