In April 2000 a geophysical survey was undertaken by the British School at Rome, on behalf of Dr. Janet DeLaine of the University of Reading, behind the Insula of the Paintings at Ostia Antica. The resistivity survey was successful in locating archaeological structures related to the extant remains of the Insula of the Paintings. Although the degree of interpretation possible was restricted by the small area of the survey and the complex nature of the target features, a series of rooms and corridors, and other features relating to the Insula were discernable.