Foster-Walker Complex to shift from quarantine housing to residence hall Foster-Walker Complex will return to its original residential hall status in the fall. Over the past year, the dorm, known as Plex, served as Northwestern’s on-campus COVID-19 housing. Students who received positive tests quarantined in the east wing, while those who only came in contact with the virus isolated in the west. For underclassmen who plan to live in the dorm building next year, excitement about the upcoming academic year outweighs any anxiety associated with the quarantine dorms. Weinberg freshman Clarissa Brill-Forman said the residence hall’s history influenced her housing decision process. She was apprehensive to commit to a dorm known for its isolation this year, and had to remind herself throughout the process that living near friends would be worth it.